DEMONSTRATION ON MELTING & REFINING STERLING SILVER SCRAPS! #13
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- Опубликовано: 16 дек 2016
- How I melt and refine Sterling Silver using Borax! Stirring using a graphite rod adding a little borax! The impurities are sucked into the Borax & the borax sticks to the rod! I like to do this 3 times! Should be good after that! Please wear safety proper equipment! Getting burned with red hot metal must hurt I don't know!!! It's as fun as it gets with your safety Equipment on! Fun Fun Fun Uh! Stay thirsty me friends!
I've really been wanting to get into pouring, I've been thinking I needed to get all sorts of fancy equipment but I think I've been overthinking it, thanks for sharing this, it helps us beginners more than you know. Merry Christmas
Thanks for the well explained process.
Cool! Great video Burn Man!! Very informative. Thanks Burnie.
Thanks brother, hope it helps some! UB
Job well done! Very interesting process 👍
Thanks for the great video. Do you stamp it sterling or 925 when you know its higher? I have seen some people advertise "sterling or better". I like your steel casting mold. Would love one of those! Doing some petrobond soon! Take care, LL
He can't legally stamp the purity, that has to be done by an assay office for hallmarking.
@@thedutchman8793 I have the stamps, and will do it illegally. I'll stamp them properly, and I have a good buddy that loves to point his xrf gun at shiny objects. I have '999' (or 666), '999 Fine', 'Italy', and '925'.
A lot of gas burned for nothing, that silver (if commercial 925) will be no different to how it started other than its form and maybe even a be little more contaminated depending on what you have used that crucible for previously
I’m trying to pour my bars like the old Johnson matthey bars with the dimples on top of them but it’s not working out am I doing something wrong. I’m melting silver in a electric furnace
السلام وعليكم ممكن من فضلك تجيب على سؤالى
ايش المكونات من المعدن المستخدم الذي اصهر
حت تحول الى سبيكة ذهب
Hi Silver to burn. Maybe you could help me out?? How do you remove buffing residue in hard to reach areas without messing up the buff?? Thank you I appreciate it
Back for a little visit and knowhow. Take care UNK Love that 8000 tip. It works !
Hey Dean, love that tip! I had to buy a new one, the first one went to shit! Started blowing gas out that little hole on the side! Caught fire & almost caught that plastic table on fire! ISH!!!
I smelted some scrap stuff I had (.925) not too long ago . but its not showing it as it should like in the (.500 to.800 )... its coming out weaker then what it should ... so with out using Chemicals how can I get it higher content ...
What's the cost of the gasses and other materials? I'm a contract welder and sometimes the gas I use on some jobs greatly cut into my profits
Sorry for the late reply! You can use Mapp gas! You can cast around 10 5 ozt things with it! I use Delft clay which cost approximately 70 bucks for a small loaf of bread size! This stuff is expensive! Also Petrobond sand works to at half the price but you don't get all the fine details!
I would like to melt down a bunch shearling charms my mom left me into a bracelet. Is this a good idea or a wast of time? I want to keep them but I want to make it into something I can wear all the time. My other concern is if it will be strong? I see a lot of videos on melting into bars / ingots but not jewelry. I'm thinking it is because all the other metels are refined out of it in the process ( that give it strengh,Just trying to make some of my moms hard work worth her effort.the only thing she liked more than collecting was creativity/crafting.Any info would be greatly appreciated.
Marshall Collins hi, yes you can melt those down & yes it will be strong if there Sterling! Just add a little Copper to make it strong if there .999! Hope this helps! 😀
Very cool. Looks like that takes a very steady hand.
It's easer than it looks! Thanks for stopping by!
.5oz of sterling + .5oz of .999 comes out to 1oz of .962 pure silver. you will never get the .999 you desire unless you are melting a very large quantity of pure silver (200+oz) relative to that half ounce of sterling.
correct. And this few shot pearls in the video will never bring it to 940 or what ever.
He makes a bar 925 over and over.
Thank you for sharing.
That was super awesome
How is the move going bud. LOL it is 2018 now. Where did the copper go ? Did it stay in the flux or vaporise or is it still within the cup liner of borax ? This came up on facebook today. Great to cruise the oldies but goodies my friend.
It goes into the Borax & sticks to the rod I guess!
Copper is still in the molten metal it doesn't go into the borax and stick to the rod.
refining is a lot of fun when done correctly ;-)
Just stumbled across this. I chemically refine the Silver to achieve 999, But I refine gold too. Great video bud.
Cool, thanks brother! Peace!
yea Vessel told me you live here. i am Vessel's brother if you didn't know and live within a stone's throw of him :) love what your doing all so very interesting! keep up the great videos.
That's neat!
Bernie, my dear old friend ! ! ! Does this mean you have come back to us on the Tube. If so that is plain fantastic bud. WOOHOO ! ! !
Sup Moki casted my first thing in 6 months today! Hope your doing well my friend! I may do a video, we'll see!
@@Silvertoburn I'm ok. Damned leg still giving me grief but that is just the norm eh. It would be great to see a post from my old mentor. Shine on bud.
nice looking bar.
Now if you could just get a third torch involved...
Thanks for posting!
Hi, 3 would be faster!!!
What happens if you put 925 silver and .999 mixed into a smelting furnace and pour it ? Does it mess anything up other then purity ratios
Right, only messes with the purity ratios! It will mix fine!
I am enjoying your video. I think you should warm up your mold before pouring the silver into it. Nice video!
Warming up the crucible is a great idea, I do now!!!
what are the impsurities that your removing? just dirt from on the silver or, copper? also what is the cheapest gas to use for melting silver? i want to start but dont know whether to get map, acetylene or even propane? im thinking map is probably the best choice to start with just wondered your opinion in cost efficiency, great vid by the way
Hi, Sterling is 7.5% copper usually! So i'm taking out the copper or other metals in there! Propane works but Map gas is faster! Acetylene & oxygen is even faster! Get you crucible & borax on ebay! Peace!
So the impurities come out with borax? I always thought that chemically refining was the only way
I know this is old but I hope you have learned that all you did was make the sterling silver into a different shape. Borax won't remove the copper from sterling.
If you want to purify silver you have to put it into a nitric solution and then slowly precipitate out. Melting this silver and putting in a small amount of .999 silver does not refine the silver into a higher purity.
No cupeling does, acid isn't needed.
@@thedutchman8793 Just orddered high quality cupels, will see, how it works on silver.
Well, may be some copper oxidized and oxide went into borax, but not much I assume...
Can’t hear anything over the torches. 😕
I know, those torches are noisy, sorry!!!
Ok. I now see how hot the crucible needs to be. Didnt know they can go that hot...
I have a bench and furnace cleanup to do and this sparked some how to's. as it's been a while.
I enjoyed watching your video...very instructive...Are you "refining" or "enriching"? what your doing is adding more Cool-Aid to the sugar ..after you've added a pound of Cool-Aid mix to a quarter pound of sugar...all you'll have is a pound and a quarter of sugared down Cool-aid Mix. melting IS fun as a hobby though...great video
What is the total cost per oz/kg/whatever (in fine silver), for extracting it? I suppose it's rather high, since sterling silver is so cheap compared to fine silver? (almost half price). If not, would it be a way to make an extra buck? Cause I'm thinking about setting up my own little home refinery just for fun, but also to make a bit of money on it. Is it possible to make a bit of money, or just a pipe dream?
Buy sterling scrap off ebay & refine it & cast it into bars & sell them! Ya could make some money, but not 100s
half price for 925? Where, please?
WhG kind of gS r u burning
You need to cupel the silver with some lead to oxidize off the base metals leaving you with only precious metals
Using lead will not remove the copper from sterling.
@@fredwalters3210 Wont lead remove the copper?
Wich model of torch do you use?
Ts8000 Burnsamatic
I believe some of the earlier comments may be incorrect, this process will refine the sterling into a higher purity, the copper will oxidize float to the top and absorb into the borax glass.
I can't comment on the efficiency of this method but I am quite certain it should work, silver to burn can you post the specific gravity of your cast bars?
Gotcha. Refine it then bump it up so the silver is still hard but not that bad. 😉
Yes sir you are correct!!! ;)
You sound just like Johnny cash😀
I used chemicals to dissolve my scrap silver it was a interesting process the silver was suspended in the acid which looked like sky blue gator aid. Then used copper to change it to a gray mush which dried into a gray powder. I still have a pint of it in powder form and about a pint of shot. You method looks a heck of a lot easier I will do you way the next time!!
Taking it from .925 to .940 by adding .999 serves what purpose?
Making it more pure!
@@Silvertoburn Dumbass.
I feel like this is not the way to purify silver, just saying
what is the stirring rod made of ?
Hi, graphite! On ebay PMC supplies!
@@Silvertoburn thanks man !
Cool!! There is a way to test purity also isn't there? So you can see exactly:-)
Hi yes, specific gravity test! Hang it from a string in a glass of water, on a scale! There are videos on how to do this, but not from me! Check out Specific gravity test for metals! Silver is like 10.2! Ya weigh the piece, then hang it from a string in the water & weigh it again! Then divide one into the other! For Silver its around 10.2 I believe! Check it out!
Sigma metal analyzer!!
i'm melting silver, and watching a guy do pretty much the exact same thing.
Fabbo ..😁
👊👊👊
It's still .925 sterling silver. The copper didn't go anywhere. Try the nitric acid refining method. It removes the copper.
The silver gets alot brighter in color & is softer! Seems to pull out the impurities/copper!
After you first pour, use a soft metal brush to polish it up. If tested, it's still .925 sterling.
I thought he was remelting the 2nd time because he didn't like the pour, turns out he's trying to burn it to refine it? i'm lost and I'm done.
It's really easy to do! Just add a little borax & stir it will take out some of the copper! Do it a couple times and the silver will become more pure!
Borax is simply a Flux to help reduce the melting point. It will not remove the copper from the sterling.
Are you speaking on the video? I can not hear anything you are saying. Perhaps you couod do a voice over? The roar of the torches has drowned out any thing else. Regards, Edgar
....I don't think the word "refine" is correct here...You are just adding more pure silver..
All you are doing is melting the sterling silver... you are not refining or increasing the purity of the silver... if you are wanting to increase the purity you are going to have to use chemical or electrolytic methods, as just melting won't do anything... the only way something would stick to your graphite rod would be if your item had something that wasn't supposed to be in the melt like a spring in a necklace or something but that wouldn't be considered part of the silver purity because it's not part of the alloy used in the sterling silver itself... this is comical why would you add pure silver to sterling silver? you're just making more work for yourself to purify it later...
The impurities go into the borax you sprinkle in there! The borax sticks to the graphite rod! Then you scrap it off! Which takes out some of the copper! Now by adding pure Silver it bumps up the purity!
No I'm sorry you are incorrect the only thing borax is really good for in this case is to separate any sort of foreign objects from the metal itself like if you were melting rings with small 1 point melee diamonds in them what the borax would do is collect those diamonds in the slag. It is also useful to use for removing the springs in any clasps or closures in necklaces. Its good for removing metal that is not in the alloy or for helping to remove "dirt" from the metal (human residue type stuff like skin flakes and other grime that is from wearing on the human body.
Now if you were trying to refine ores and low grade silver, gold or other PGM's then yes borax can help to increase the purity by oxidizing some of the other base metals but even then the fluxes you use for melting have other chemicals that are better suited for this like sodium nitrate, carbon sources as a reducer, fluorspar, etc just to name a few.
Copper does not stick to the graphite rod when you are melting silver or gold or other PGM's that are alloyed with it... It just doesn't... please trust me on this I do this for a living. Imagine you are mixing up a pancake batter and then you add chocolate chips to it, pretend the chocolate chips are the copper. can you separate the chocolate chips by just mixing the batter with a spoon? will they all stick to the spoon or get attracted to the spoon? Both answers are no.
By adding pure silver to the sterling silver of course you are increasing the purity but it's really pointless to do because you aren't creating a pure bar by doing this you are just creating a bar that is higher than your original sterling silver content... but it's not doing you any favors because if you are planning on refining this bar you now have to use more nitric acid to dissolve the silver costing you more money in the long run...
If you want to learn how to refine precious metals I'd recommend checking out some other channels like Sreetips, or indeeditdoes, or even an online forum that goes by the name "The Gold Refining Forum" a wealth of information can be found there.
Might watch some videos at Cody's Lab channel he uses chemicals to separate the metals and dissolve the silver into solution, precipitate it out, then melt down the pure silver that is collected from this process
I would recommend to always wear the proper breathing apparatus whenever doing melts because unless you know with 100% certainty what the other alloys that may be mixed with the palladium are it could be possible that other toxic metals may be present. example: Lead, Cadmium, Zinc (fumes) etc. Pure palladium on its own if you're melting it I'd at the bare minimum I'd recommend that you do it in a well ventilated area (outdoors with a slight breeze, or under a fume hood) and you should be alright.
its just melting !
Are you really recooping any more money this way?
Its a way to get the copper out! Just takes a little time & gas!
What ?
No wonder co2 is increasing over the planet
sadly this guy doesnt know what he is doing. You can't refine silver by heating it and just added borax. Borax cant remove the copper from the silver. .
Your mom!
You are melting the silver. You are not refining anything.
Borax pulls out the impurities, repeat the process it will refine the Sterling!
No. Borax removes some 'impurities' only marginally. You can melt and remelt until eternity, you won't *remove* copper, zinc, lead, tin, antimony, cadmium, arsenic, let alone gold, platinum or palladium from your contaminated silver. To do so, you need to *refine* it, which is done with nitric acid, precipitate with copper or lye - sugar and use electrolysis to get it 999,9 pure.
There is no other way.
The Silver does get brighter each time I do it, meaning less impurities!
Just repeat yourself and learn nothing.
Apparently you repeat yourself and learn nothing!