Gold Refining 740 Grams of Gold Filled Scrap

hello YouTube viewers welcome to my channel I am three tips and today what I have here is a batch of gold filled scrap that I'm going to a process today as I sort through the scrap that we accumulate whenever I come across a piece of gold filled material I just throw it in a bag on my on my workbench over here and then I wait until I get a fair amount of it built up and then what I'll do is go through and sort through it all clean it up mechanically the best I can removing any steel pieces or plastic or anything like that that I can take off of there to leave just the bare gold filled scrap and what this will do is this will clean it up nicely for when I go to put the Goldfield material into the acids okay let's go ahead and take a look at this material I have here I've got some gold filled watches here they still got the movements in them and I'll take those movements out and just save the cases this is a watch band here it may have a gold field go filled tops the inside is gonna be steel and then these tops I'll take off one at a time and save those as gold filled here's a watch here's a whole bunch of watch bands these bands as you can see on the inside are steel but the tops that they put on these are gold fill so I'll pull each of these tops off and include them in the batch I have to go through all these bands and pull the gold filled material off the steel parts throw the steel parts away and save the gold filled material here's a bunch more watches I have over here I don't know if you can see that what it reads on there it says gold filled here's a bracelet that has some steel springy material in it I'll have to take each one of these pieces off and include in the batch got some earrings cufflinks here's a bracelet here's a whole bunch of gold filled wires or um bracelets and necklaces that I just threw in there I'll have to go through that and pick out the steel parts this is gold filled wire I say those here's some gold filled earrings here's a little pendant here this gold filled I don't know if you can read down on the back there see if I can get that to work and be read it'll say something like 120th 12 K gold filled there's some more gold filled pieces jewelry items earrings here's some pins and pendants that are made of gold filled material let's say right on their old fill here's some more pieces little charms to go on a charm bracelet there it says gold filled on it there's one it's got gold filled written right on it I can tell the gold filled material because it has a different look to it it looks just about like gold but it's not quite well actually you'd be you'd be very good at what you do if you can tell the Goldfield pieces from the actual gold material these things are pretty high content these bangle bracelets here they got usually have a lot of gold in them I've got a couple of those over here I don't make a nice yield there's a gold feel chain these are going to feel balls on a gold fill chain some more gold felt chains and pendants over here that's got gold filled written right on if you can see down here it's kind of hard to see it's written right down here with my thumb is and a whole host of other things here's a Goldfield watch case this gold fill bracelet a couple of them gold filled lockets and charms some more chains here's a piece it's got a whole bunch of gold filled wire wrapped around it to make a piece of jewelry so what I'm gonna do is go ahead and clean all this stuff up and we'll get it in some acid dissolve out all the base metals and then get these foils separated from the base metals and then go from there what I'll do here is start by taking these watch movements apart I'm gonna remove the pieces of steel and the non gold filled material here just sitting off to the side the back of this one happens to be steel so I'm going to take that off there and I'll put the watch movement in here I'll save that that's steel so I can get rid of that this part's good what I'll do is just press out the crystal like so this is the good piece that I want to say that's the Goldfield part a little watch here's a gold filled lock and it's got some pictures in it I don't want to include them so I'll take that little ring and the piece of cellophane off there throw it out away keep the ring I dig out the picture throw it away seeing what this one keeps the ring get rid of the picture and the piece of cellophane and then there's our gold filled piece okay these type of watchbands have a steel frame to them and the tops up here are gold filled so what I'll do is I just take a little pair of pliers here and I try to get ahold of what an end of it and I just peel that piece off I save this we don't want the steel parts going into our into our batch here so I'm going to go ahead and peel all these little pieces of the gold filled stuff off the top and I'm gonna save it and then that will go in with our batch and all we have left is the steel and I'll just throw that away there's all the good stuff I'll go ahead and have that for the batch there's peace it's got a little pearl on it it says gold field right there on that little tag and so what I'll do there is before I commit it to the batch I'll go ahead and pull the Pearl out save it just go down in with the batch now here's another little piece with some pieces of turquoise in it I just bend the prompts back on those save it I can always use these pieces of turquoise to do a repair on someone else's jewelry so I save all this stuff but it don't want to include it in the gold filled batch here's another watch the way I get rid of that always just gotta steal back on it and the Goldfield face so here's the golden fill part that's the part I want to keep put that in the batch over here and then I'll just save the movement here's some gold filled earrings it's got little markings right here it says 1 xx 12 k GF what I'll do with these it's got some jig in here and just kind of peel back the setting get the jig on the metal there and then I'll save the metal and commit the gold filled metal to my batch and save the pieces of jade DJ save it stuff like these charms each one of them has a little marking on it here it says gold 1 12 12 K gold Phil this is says 14k gold filled on it this doesn't need any processing I just throw those right in the batch over here's a gold filled watch case that's gonna have a little steel piece right in here that I need to get out that's completely gold fills that egg in the batch I just kind of break these off the top that's all gold filled so that command batch it just comes out there's the steel pin there's some more steel parts down inside there that I need to get out it's unscrews like this it's a little brass screw with a steel component in it I don't want that going in the batch of this stuff I'll just throw away this can go in the back it's the top of the crown of the watch that's the good gold fill material right there this is junk and brass and steel can be thrown away here's a gold watch casing with a little crystal if I popped him out like that I saved those so I can not maybe do a repair on someone else's watch and then just add the gold fill part to my back here's a gold filled bracelet it's got a brass catch in it inside of here now see anything magnetic here so I'm just gonna go ahead and add that whole thing right to the badge these are all pieces that are marked 120th 12 K or 120th 14k gold bill he's got a couple little stones in them all trying to get those out of there before I throw it in the badge but that this can all just be added right straight to the backs no other processing is required here all right this is a big wad of wires that are all connected intertwine tangled up so what I'm gonna do here is I'm just gonna look at them real careful just start cutting the pieces away into my batch here and then as I come across these steel catches I'll go ahead and get them off of there I just cut the good metal away that doesn't have a catch on it and add it to the batch so that that way it slowly gets the wad of changeless just slowly get smaller that this one is important it says 10 k RG p bezel stainless back so that right there what we got here that RG p means roll gold plate or gold fills so this parts gonna fill it's gonna go in the batch the movement is not gold so I'm gonna take it out well actually I'm not gonna save it the stems not deal with it and it's got a stainless steel back this is going in the trash here's an old Elgin wind up with a second hand on it and it's running so I'll probably just hang onto this one and try to list it on my eBay store for sale separately rather than tearing it up because it is in working condition here's a 10k gold filled ring it's got a stone in it so what I do here is I try to get my screwdriver down underneath the setting for it and Bend that out can pull this piece up here if you look I peeled off some of the metal back from it was a bangle bracelet it's got somebody's used soft solder lead to try and repair it and if you look here you can tell soft when it does like that see that it's led I'm gonna exclude this piece and not maybe clean it up and treat it separately another time but I don't want all that lead going into my badge here here's all our clean metal all the steel stuffs been taken out of it all the stones have been removed and here's the stones like that wasn't all of them that came from this batch but that's some of the stones I took out this is a material that I decided to exclude it's the watch bands with the covers the tops that have gold filled tops there I'll pull those off and gold gets up around $5,000 a gram or an ounce here's gold filled watched its work and so I decided to save that look into selling that separately on my eBay store so now we're ready to go ahead and weigh this up and get started all right I'm gonna go ahead and put all the gold filled stuff in this container here and we'll get a weight on it it's like we got seven hundred forty point seven grams of goldfish gap here okay I've got a four liter beaker up here still water in it by the leader the lover leader and I'm burning off all the oils who jumped from this metal heat it's a redness and I just added to the beat [Music] now this is important to notice here I've got some metal in the bottom of the dish here that's molten and I want to get that keep that out of my badge turn it's staying molten just from the heat of the dish so that's probably gonna be lead there something led in here so I want to exclude anything that is lead from this batch so what I'll do is I'll let that heart stiffen up and then I'll get it out of the get it out of the melt dish you see here that's Dan Bolton just from the either the dish that's plaid this leg is probably from soft solder I just wait till it solidifies then take it out get it out of the batch want that going in with my bags would cause problems probably solder which has 10 in it and so I want to exclude this from the bunch go ahead and add some more milk this year keep going with the heating keeping an eye out for anything that might be let in here get rid of it that's another reason why we heat this material to make sure we don't get any lead in there the lead will tend to melt and fall down to the bottom of the dish and we can get rid of it 10 another reason for kneeling our material before we commit it to the ass got all the scrap now in this four litre beaker got Stillwater in there with it I'm gonna start out in small doses of nitric acid now add some heat and dissolving out the base metals with dilute nitric acid here it's about a hundred ml or so start out with just let this react I'm gonna add another hundred ml or so of a nitric acid here [Music] it's been on now for about two half an hour I've got probably 300 ml in here of nitric acid I want to keep track of it 100 ml at a time poor little bit in this jar here so I keep a little bit more accurate measure on [Music] I'm gonna add another 100 ml to the to the beaker here concentrated nitric acid I'm gonna add it slow cuz it's gonna be hot and that we started out with 700 or so what was 750 ml or 750 grams of of gold-filled scrap and it's going to take about three-and-a-half leap ml two and a half ml or a gram of scraps we're looking at about 22 to 20 500 ml of nitric acid to get all the base metals dissolved out of this gold phillips ground notice the levels beginning to rise here after I added that 100 ml dose of nitric acid I chose a tall beaker here bigger than I actually needed to account for this swelling of the reaction when I pour the acid you make sure I got a lot of headroom here put another marker we got about another hundred ml in there you've done a little math here I had 740 grams scrap and that's gonna take about 3.5 ml per gram which equates out to about 25 90 ml concentrated nitric acid to get all the the base melons dissolved our goal built around it's been about 10 minutes or so since I've added that last dose of nitric I'm gonna go ahead and add another 100ml here slowly the trick is to add it slow but to get the nitric and acid in there as quickly as possible so we can get these base metals dissolved it's about another 100ml there all right we've been on for about an hour now all that nitric that I've added it's been used up I got about 500ml in there so far this is hot so I gotta add this real slow I'm adding some more concentrated nitric acid we try to put another 100ml in there [Music] let's just let that react it's real hot so I'm gonna put it in a lot slower than what I said [Music] I'm gonna go ahead and try to have a little bit more nitric acid now just a touch more to see what happens here what's going on with these uh this vigorous reaction is there's a whole bunch of base metals still left that need to be dissolved the solutions were all hot so when that nitric acid hits that hot metal it reacts real vigorous like that so I got to be careful for that stuff being a real slow [Music] couple minutes that last addition go ahead try to get a hundred ml in here so we can give it a while to react pretty close that's about a hard ml right now off [Music] we got 600 ml and nurse so far [Music] all right it's been about 15 minutes since I put that last dose of nitrogen add a little bit more here so we cannot continue to dissolve the base metals out of that gold filled scrap [Music] there's about 75 ml there looks like it's gonna overflow but it won't that's why I pick a tall beaker for this process [Music] as the base metals get dissolved more and more throughout this process the reaction will calm down it won't be that vigorous when there's not as much base metal in there to dissolve right now it's probably at its peak for danger for having an overflow so that's why it's important to add this ass real slow I've got 700 in here now it's been on here for about two hours now and I've got 700 ml of nitric acid in there I'm gonna fill up my jar here again to about 200 ml level see if we can get this in there slowly that's an honored a medal there 800 in there now I've got a bet 800 ml in there we've been on the heat now for two and a half hours go ahead gets more this nitrogen gas into this beaker [Music] got another 100 ml in there we got 900 in there total right now winds down the sides of the beaker here go ahead and start adding some more nitric here see if we can get a little bit more in there or for hours and I've got 1500 ml of concentrated nitric you can see the the gold foils are starting to float to the top there this stuff down here these are gold foils all the base metals have been dissolved out of that there's probably still so a little bit more that's got to go but it's real light you can feel it real light on the end of my stirring rod there and this is what the gold filled scrap will look like when all the base metals has been removed there's just little bold foils [Music] I'm gonna go ahead and add another couple hundred ml of nitric acid to my jar over here and then start carefully pouring that in and see where we are with this reaction [Music] it's about 200ml in the jar there already got 1500 in the reaction vessel here so much pour some of this in a little slow get the heat on medium so it's uh fairly warm in there as you can see I don't get a whole bunch of reaction like I was earlier in the video because most of the base metals have been dissolved out of the gold filled scrap you see I already I just poured 100ml in there easy without a real biggest reaction so most of the base metals have been removed here it's about four hours into the reaction now you still got a little bit more base metals to go I can tell by the way it son reacting there and by the amount of fumes that it's producing so we'll just keep adding nitric acid until we get yeah get it all in there and get those base metals dissolved [Music] I just put 200ml in there with not much of a reaction [Music] so now I've got 1,700 ml of concentrated nitric acid in the reaction vessel but this cook now for about six hours I've got a piece here that's fairly solid and I don't know what that is it looks like it might be aluminum so I'm gonna pull this out it had some gold coating on it that was able to get off but I'm gonna take this piece out and set it off to the side and get it out of there because that's aluminum I don't want that in my reaction vessel [Music] this is the piece of metal that I'm removed from the batch I wasn't sure what it was I thought it looked like aluminum but now that I've checked it with my magnet I can see that it's a magnetic here so it's either gonna be steel iron or nickel it's probably iron [Music] but as you can see the rest of the foils are looking real good now everything's real lightweight down in there I don't feel nothing real heavy all the pieces of gold or just foils of what they used to be I've only got 50 1700 in here so what I think I'm gonna do is I'm gonna go ahead and let this cool off give it a rest overnight then I'll come back out tomorrow morning and and siphon off the liquid and then add some more nitrate and see if we get any more reaction so I'm go ahead cut the heat off now just let this cool down overnight give it a rest back out tomorrow yeah I almost forgot what I'm gonna do here is add about a leader of distilled water to my a mixture here to dilute it down [Music] otherwise it kind of gets gelatinous or it's real thick and hard to work with something dilute it down now while still high Merritt's bottle leader Stillwater added to it stir this up and then when I come out tomorrow it should be a little bit easier to work with it is the next morning and the solution has been allowed to cool to ambient temperature which is about 85 degrees right now what I'm going to do is bring the bring the beater out here this is a plastic tube full of pullet distilled water I'm using distilled water here because this solution is gonna have silver in it so I don't want to use any tap water a little distilled water now I'm going to put my thumb over one hand like so you stick the other end in this tube here actually let me do this just by cycling faster and easier for me got my thumb on one end but the other end of the day I liquid then I want to cite them just let my thumb off so we're still water to risk to walk here here's what's left and our beaker these are the gold foils that were after and what I'm going to do now is add a little bit more nitric acid here and see if I can get any more of the base metals to dissolve out of there all right here's our solution we just psyched it out what I'll do is I'll flip for that and because it's probably going to be some gold foils and some suspended gold material in here put this back up on the stove here give it a little heat now I'm gonna add about 250 300 ml of distilled water here [Music] okay I've gotten up to about the 800ml level here I'm gonna add the other 200 ml of concentrated nitric acid here and we're gonna let this let this acid really do its number on the any remaining base metals that might be in here there that's about 200 ml of concentrated nitric acid I'm gonna turn the heat up on this to medium-high and just let it go while I'm waiting for this reaction to happen here we'll go ahead and filter out the solution that we that we just siphoned out of the gold filled scrap [Music] this is the solution that I siphoned off of our gold filled scrap and what what I'm doing here is I'm gonna filter out any solids that are in here capture anything that's solid in a filter paper and then I'll add that back into the batch over here and down here this solution will have nitric acid some free nitric acid and some silver in it so what I'll probably end up doing with this is an adding some scrap silver to it until no more silver will dissolve that means all the nitric acid has been consumed and then I'll add hydrochloric acid and precipitate out silver chloride and then convert the silver chloride to your silver metal this is our gold filled scrap I've got I had about 800 ml of solution in there and I added 200 ml of concentrated nitric acid and what I'm going to do is I'm going to let this boil until no more fumes are evolved and that should pretty much take care of all the base metals that might be in with that gold filled scrap spin about fifteen minutes since I added that 200 ml of concentrated nitric to go fill coils and as you can see I'm getting a lot of uh red fumes evolving which means I've still got some base metals down in there so far I've got 1900 1900 ml of concentrated nitric acid passed over those gold foils I've got distilled water here about 200ml I'm gonna add it to our nitric acid beaker here and then I'm gonna add another 100 ml of concentrated nitric acid to that to bring it up the 300 ml level and now I'm going to add that into the reaction vessel here that would be a total of 2,100 ml of nitric acid been added so far to the gold filled scrap we've gotten reaction vessel you that's 20 100ml so far our women mm mm mm L of concentrated nitric gas have been added so far all right the solution has been boiling now it's got 2,000 ml of nitric in there I'm gonna go ahead and add just to get dehydrated so I'm going to add 300 ml of distilled water here and then I'm going to add another 100 ml of nitric acid just to get this reaction rehydrated [Music] we got 20 100ml nitric acid on the goldfields crap now take a look in here and see what those off whirls are looking like oh yeah they're they're very lightweight now probably any weight to them at all it's mostly just gold foils left so we're going to let this boil for a little while longer and then just to make sure all the base metals are gone and then we'll proceed to the next step all righty all that solution has passed through the filter now we've got some residue in here with a few pieces of gold foils I'll add that back into the batch when we get later on in the process here's our gold foils been on boiling now since I started today about four hours and that people are pretty much done here there's our gold foils you can see the base mouths are up completely gone and nothing left here but soils and that's what we want to sing so what I'm gonna do now is I'm gonna go ahead and let this solution cool off and filter all that out of there and get the coils separated from the solution cool off I'm adding about a liter of distilled water here to up to dilute the solution and help cool it off [Music] okay today is day three I've allowed the solution to cool down again overnight I'm going to beginning out of here by taking out this filter this has got some residue in it along with some gold foils and I add that back in with the bat so I'm gonna set it here temporarily in this melt dish and later on and now not what I'll do is I'm going to transfer the solution out of this flask it's already been filtered or transferred out of this flask back in this now asked here [Music] and then what I'll do is I'll just save this solution the later process and it's gonna have silver in it and it's gonna have some active nitric acid in it I'll add some scrap silver here and consume the remaining nitric acid then precipitate silver chloride and converted back to pure silver metal sent this out in a way [Music] and then set the filter back up so I can filter the solution out of my gold foils back here [Music] [Music] get this thing out of the way here okay just like before I'm gonna go ahead sign from this material for this liquid out of our second die nitric treatment a tube full of water thumb over one end to down inside solution I wanna cycling is let my thumb off but all this liquid cycle off down into this Sun is a beaker here's our gold filled chunks stuffing here I might explode a piece of wire right there there's a steel wire get that out of there it's just like there might still be some solid pieces in here all the base metals have not been taken out so I'm gonna go ahead and hit just again with some dilute nitric I've got some distilled water here I'm going to add about about 200 ml of distilled water and then I'm going to add on top of that about 100 ml of concentrated nitric and i'ma go ahead just let this boil let's see if we get some more reaction out of this longer I spend here less trouble I'll have later on when I go to a dissolved in foils in operant region all right while I'm waiting for this reaction to take place over here I'm going to go ahead and just like before we'll go ahead and filter out the solution that I just siphoned off let it collect any solace in this filter paper here okay the solutions on boiling now and I've got a lot of red fumes coming out of there it's been about 20 minutes since I put that on and judging by the amount of fumes there I still had a bunch of metal in there to uh to dissolve so I'm just gonna let that go and while I'm waiting for that reaction to happen I'm just going to continue to go ahead and filter the rest of this solution that I see [Music] to keep this reaction hydrated I'm gonna go ahead and add about 300 ml of distilled water here so that the base metal will have someplace to go when they dissolve [Music] solutions been boiling for about two and a half hours now there's very little fumes in here and I think we've got all the base metals pretty much dissolved out now I've I got 20 200 ml of concentrated nitric acid in there I've cut the heat off just go ahead and let this down now a second solution has filtered off here and go ahead and pull the filter out and add it to the belt dish here go get I'm going to add a little bit of ice to this solution just ice make with tap water you should be okay trying to get cooled down so we can do a filtration on it all right I have a big piece of filter paper here I'm gonna put it down in the filter so it kind of rides up along the edges a little bit so that I can catch all the material in the filter as I pour the Goldfield scrap through it [Music] right the solution I believe is cooled down it's below 100 degrees I got 97 Fahrenheit 36 degrees Celsius all right now I'm gonna go ahead and try to pour the boat folks crap into this filter try to collect all the gold foils in here this is the same class that I used for the delivery nitric treatment number two or right in on top of that this is looking pretty good the solution is real cloudy and purple colored and the filtrate coming out of that is like blue colored and it's fairly clear so I'm getting all the particulate material filtered out of the solution and that's what I want to see here's all our gold foils this is the good material that we want to refine into pure gold and you can see they're all just shells of what it used to be there's a watch case it's just a shell and that's what all this material is gonna be it's gonna be the shells of the thick coating of gold over the gold filled material and all the base metals have been dissolved out so now what we got is the gold foils we're going to get them in this filter and give them a quick rinse and then we're gonna proceed with the process alright I'm gonna give this a quick rinse with some distilled water will let this drain out and this will conclude the recovery part of the gold filled scrap we've recovered the foils and now we're going to go into the second part of the video which is the refining of the gold foils I've got all the solution filtered out of the gold foils now what I'm going to do is I've got the two filters from the previous two filtering Zin here in this melt dish I want to include these in the batch so now what I'm going to do is carefully take this apart here and I'm going to get the the foils down into this melt dish so we cannot do an incineration on this check it out my little foil pouch it was like that thank you thank you okay here's the gold foils got oven to melt dish but the other two filters from a previous built drink I'm going to go to the next step which is incineration this is my own made incineration oven it's made from a black & decker type little toaster oven and what I've done is inside the case I insulated with with some some ceramic wall I got a surprise last here in the back just kind of propped up against it keep it from losing heat back here and what I'm gonna try to do is go ahead and put my gold filled scrap into this homemade incineration up and see what kind of result we get here alright in this oven inside of here there's a little thermostatically-controlled switch and what I did is I put some insulation down inside of there to isolate the heating chamber in here from the thermostatically-controlled switch so that the heat inside the oven will go beyond what it's normally supposed to heat up to and if I see those et tubes turn them off I've got a little fan installed up here and what I do is I just stop plug it in briefly to cool it down cool down the switch just a little bit so I get the heating elements to come back on and now this is my homemade burn out of eight five bucks for it at the fish store see how it works all right getting pretty hot in here you can see some flames that dish is up to 521 Fahrenheit to 72 Celsius it's gonna leave this in here and let it burn [Music] okay I just heard the thermostat click and you see the below the tubes going down right quick rule the thermostat in here off and it should come right back on [Music] dish is that 380 338 Celsius 641 Fahrenheit what's getting up there [Music] all right we've had it in the oven now for about 45 minutes the dish is 355 centigrade 671 Celsius or Fahrenheit the contents of the dish is 662 Fahrenheit 350 Celsius what I'm gonna do is go ahead I'm going to take it out turn the oven off here and we're gonna go ahead and take it out finish it off with some flame egde from a propane torch here [Music] all right I've got a propane torch here I'm gonna cut the flame way down the low I'm gonna go ahead and finish incinerating this material with a small propane flame here so I don't blow the stuff out of the dish actually it looks like the oven did a pretty good job of incinerating everything I don't see any smoke coming off of here everything's pretty much been burned up pretty good in here I can't overemphasize how important this step is incinerating this material - redness especially if I suspect that there may be some tin in with this and you seen there with soft solder earlier in the video so that means tin what happens here is the nitric acid will react with the tin forming a tin paste that's the consistency of Elmer's glue and it will plug up a filter and a heartbeat if we incinerate this material - redness like I'm doing right here what will happen is that Metis tannic acid will get burnt into a substance called tin oxide and the tin oxide does not dissolve under the acids and it can then be easily filtered out [Music] all right now what we're gonna do is put our incinerated material into a beaker here first I'm going to add about 500 ml of hydrochloric acid alright now I'm going to take the gold filled material that's been incinerated add it right to the hydrochloric acid here [Music] now I'll put a cover on it turn the heat on up here to about medium and we'll set this up here on the heat start heating it up we've got a pipette here with 1 ml 2 ml and 3 ml what I'm gonna do now start adding nitric acid to the mixture and the beaker there it's a little over 3 ml right there [Music] it's about three and a half more three and a half more and three and a half more so that's four doses of about three and a half ml of concentrated nitric acid [Music] we're reaching there and get a little bit of the solution on this filter paper and make sure that we've got gold going in solution quite certain that we do who the drop is stannous chloride on this [Music] and you can see we got a black stain there definitely got gold going into solution I've got ten doses of 3.5 ml each of concentrated nitric in here that means I got a total of 35 ml of concentrated nitric acid in with the gold foils and the 500 ml of hydrochloric acid it's gonna let this cook for a while our mixtures been on the heat for about an hour now go ahead and add another three and a half ml here and see what happens [Music] but get a big reaction like I am that means that there's more things in there that need to go into solution so we'll just let this go forward I'm gonna add about a hundred ml of hydrochloric acid here just to freshen things up inside to be her [Music] all right I don't see a whole bunch of Vaud solids and then the beeper here I see some sediment down there but not a whole lot left in there I think we're pretty much done with your reaction here [Music] but our mixtures been in here on the heat now for about an hour and a half I've added two more doses of three and a half ml of nitric I've got a total of 42 in there plus 600 ml of hydrochloric acid so what I'm gonna do now I think everything's gone into solution good turn the heat off but transfer this solution into this tall beaker here you got going on in the bottom I think everything's pretty much dissolved I want to verify that I'll transfer the solution of this tall being regretting all the time [Music] that's our gold bearing solution there [Music] and just as I suspected all we have in the bottom of the beaker is some it's like dirt I think all the gold has been dissolved in the solution [Music] go ahead put everything in this beaker more let the Sun [Music] yeah it's just dirt there might be a couple of little pieces up there of stuff that didn't go all right I've transferred the gold-bearing solution into this tall form beaker and what I'm gonna do is let this settle down real good get all the solids to settle to the bottom and we'll do a filtration on that over here left in the beat here I've got some solid pieces of metal not quite sure what that is we'll get those out of there and now analyze them and see what those are I just realized that I didn't add any sulfuric acid to this and I want to do that to make sure that I precipitate out any lead that's present there's a high likelihood that there's gonna be something here it's about one an amount of concentrated sulfuric acid sulfuric acid will react with a new lead in here forming lead sulfate and then it can be easily 100% filtered out all right our solution is crystal clear it's been allowed to settle overnight rather than pouring it into the filter down there I choose to siphon it out because if I poured it the sediment that's settled to the bottom of the beaker would become disturbed come out into the filter load the filter paper up and slow this filtering way down siphoning is an extra step and you got to rinse the tube out but it sure speeds up the filtering process now that the bulk of the liquid has been passed through the filter I can add the sediment to the filter and only a minimal amount of liquid will have to pass through the sediment [Music] here you can see where the filtering operation slows way down to just drips after the sediment has been added to that filter paper and loaded the filter paper up we got the sentiment out of the gold solution here what I'm going to do is pour the solution into a clean beaker here it's got a little bit of cloudiness that came over with it but that's okay because we're gonna do this you find this two times at least got a beaker here I'm gonna go ahead and pour our gold-bearing solution in here so we can precipitate out the pure gold [Music] okay I'm gonna add sodium metabisulfite here to precipitate the pure gold [Music] you can see it instantly comes out of solution there all right I'm gonna do a stannous chloride test here and make sure we got everything dropped out of solution as you can see all the gold has been precipitated with the SMB the goal has been allowed to saddle it's down here on the bottom of the beaker what I'm gonna do now is I'm gonna empty the waste into my stock line down here a stock pot has copper in it and the precious metal tournament that are in that waste solution will cement that'll cop I've got a filter set up here welcome do now is go ahead and filter the precipitated gold out of the beaker and get it into the frontal here into the filter [Music] hours in the filter now what I'm going to do is rinse it off a little bit of hydrochloric acid this will help our inside any kind of metals that might be in the solution that was in there with the gold this hydrochloric acid rents well I rinse out any dissolved metals that is in with the gold that the regular plain water rinse might not be able to get out of there so that's why rinsing or a gas okay now what I'll do is I'll put the gold and the filter right back in the beaker it came out of it's been rinsed out real well just pull the filter right back into this same beaker now I'll add some hydrochloric acid here about 300 ml or so up to the 300 ml level there on the beaker now we'll place it up here on the heat put it on about medium-low heat before I start dissolving the goal here I'm gonna add about half an ml of high power sulfuric acid here contrary concentrated sulfuric acid now I'll start adding doses of nitric acid to the mixture of a gold and hydrochloric acid should be 2 ml at a time there's one [Music] to great it's for two ml doses of concentrated nitric acid so far I've added 7/2 ml doses of concentrated nitric acid and as you can see here most of the gold is gone at the solution it's been about ten minutes since I added the last dose of nitric as you can see everything's in solution now we'll take this off the heat let it cool down I had a few chips of ice here to cool our solution down so we can filter it [Music] got the solution cooled down now we'll go ahead and filter it [Music] when I rinse all the color out of the filter here [Music] I'm gonna take the funnel off [Music] or the solution into a beaker here and precipitate begin with sodium metabisulfite [Music] now we're gonna add some sodium metabisulfite and precipitate the pure gold a second time here [Music] all right their ears are pure gold powder took about an hour to settle I like to see it sell a little quicker than that and I did see just a touch of cloudiness in the orange solution before we precipitated so I'm gonna go ahead and set up and refine this a third time all right the first thing I'll do is pour the waste solution off out of this beaker into this flask because my stock pot is full now I'll get the gold and the filter again giving another quick rinse with some hydrochloric acid again this rinses out any kind of metals that just plain water would not be able to get to alright now what I'll do is put the gold with the filter right back in this beaker [Music] now I'm going to add some hydrochloric acid about 300 ml or so [Music] that's 250 that'll be just fine put this up on the heat and start adding some more nitric acid here first I'm going to add some sulfuric acid just about a half a mile or so I do this every time I dissolve it just in case some LEDs make it through the process this far alright now I'm going to add nitric acid here last time it took about 16 ml so I'm gonna add just about that much I guess here there's three [Music] six 9 [Music] 12 [Music] fifteen [Music] sixteen ml this only took about ten to twelve minutes we've got everything in solution here so we're ready to go I had to set this out so it can cool down then we'll filter it precipitate it again have little ice here to cool it off so we can filter it [Music] solutions cooled off I've got a filter here filter the solution one more time under vacuum [Music] this solution is much much clearer now I don't see any traces of cloudiness in it it's pulling through the filter very quickly this after this third refining we should have some good nice pure gold here alrighty we're all done here it's nice and clear transfer this to a beaker now and we'll precipitate it for the third time [Music] all right our solution is crystal clear with no traces of cloudiness which indicates we're gonna have some real pure gold here I'm gonna add some more sodium metabisulfite or simply take the pure gold down third time [Music] here's our pure gold it's been allowed to settle the solution on top of it is absolutely crystal clear no traces of plotting this or out any color to it so what I'm going to do here is I'm going to pour off this waste solution into my temporary stockpot just this flask I'm gonna pour the metal off or that pour the liquid off into here the gold station a nice cake there that's what I want to see there's our pure gold what I'll do now I've got a filter set up here we'll go ahead and get this pure gold into a filter I'll get it over on the melt take one night we'll melt this up into a nice bar [Music] once again I'll add a little bit of hydrochloric acid to rinse it off in the filter [Music] here's our fine gold powder and now once we get the I'd Laura casa de dreamed through it I'll get it into a melt dish we'll melt this up to a nice bar all right what we're going to do now is get the gold in the filter paper down into this melt dish here kind of break it loose from the filter from the funnel and then just kind of carefully get it down into the melt dish here [Music] just like that okay now we'll take the gold put it over here on the melt table and melt this up into a nice bar you [Music] [Applause] all right here's our 999 fine gold bar just as shiny as it can be no traces of any kind of contamination I'm gonna put it on the scale here let's see what kind of weight we got on it oh that's way more than I was expecting that's twenty-eight point five grams I was only expecting about 15 to 17 grams okay this little gold bar surprised me there's way more there than I uh doctor was gonna be but that's all right I'll take it it's a nice little gold bar real bright shiny surface it's got a piece a little flux over here I'll get rid of that there's a few bubbles here from where I poured it in some of the outgassing probably from the graphite mold but man it's a nice bright shiny bar we'll get this stamped up and I'll put this on my ebay store for sale immediately nice I got the gold and a little bit of uh dilute sulfuric acid too uh take off any of that flocks that came over with the boar so this will conclude the gold filled scrap refining video this is the complete process from start to finish it surprised me quite a bit I was only expecting about two grams two and a half grams per 100 grams of gold filled scrap but what I got in fact was twenty-eight point five grams of pure gold from the 740 grams of gold filled scrap than I processed I don't know how to account for that I didn't add anything the only thing that went in there was the gold filled scrap that I showed in the video in fact I ended up taking some of it out because it didn't look like it was gold to me but anyway we got a twenty eight point five gram gold bar here pure gold 999 fine gold I've got my my name sweet tips stamped on here it's got the weight twenty-eight point five grams and what I'm gonna do is I'm going to go ahead and list this on my eBay store and just let it go for bids if you go there and look at the at the gold bar here and then I'm gonna be selling on my eBay store make sure and take a look at some of the other gold items I sell gold and silver jewelry on my eBay store and that's how I support this my videos I'd rather do that I'd rather sell something nice to you and a greatly reduced price so you get something and then I make a little bit of money so I can keep refining precious metals and making videos so while you're there make sure and take a look at some of the other items that I have for sale on my eBay store my eBay user name is baffle us ba fel owe us or you can just type in my Street tips put that in the title of each of my listings so if you type sweet tips into the search block on eBay it should pull up my items and then you can take a look at the I'm gonna go ahead and open this up to Canada this one will be available to be bid on from Canada if you are the winning bidder in Canada please wait before you pay until I can send you an invoice to show you how much the shipping is going to be I'm gonna have to include some insurance with this one so if you're the winning bidder in Canada please wait before you pay until I send you an invoice okay that'll do it thanks for watching

Channel: sreetips

Views: 475,463

Rating: 4.5628743 out of 5

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Id: jlIyBGLeGg4

Length: 87min 42sec (5262 seconds)

Published: Fri Sep 21 2018