Easy DIY Gold & Silver Refining Process At Home, No Acids. Remove Base Metals By Cupelling MBMM

Gold & silver refining using the cupelling process for removing base metals (copper, lead, iron, antimony, zinc, etc) from our smelted gold buttons. This process works on silver as well as platinum, palladium, and other precious metals, too. This is an ancient process that has been used since the bronze age for removing base metals from precious metals. It is inexpensive, low tech, low skill and works very well for getting refined gold and sliver with very little contamination. Using only lead, portland cement, and a torch the base metals are heated, oxidized, and removed from the precious metals by the cupel. It is a great way to take your smelted gold, silver, precious metal buttons and increase the purity of the precious metals with very little work or effort.

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[richardrobertson]

Well done, Jason! In addition to Portland cement (calcium oxide) you could use ground glass or calcium phosphate (available as a fertilizer or bone meal) or crushed magnesite. The problem with using glass is that gold is soluble in molten glass just like lead oxide is. If you were to use bone meal fertilizer, you would first have to burn off all the left over organics like fat which smells bad and smokes a lot. If you used copper as the collector metal while processing the original gold button, you may find a lot of copper remains distributed throughout the final gold button (to be determined with a quick x-ray analyzer). Gold and copper form a pretty strong marriage if inadequate amounts of flux are used. I wish more video authors discussed gold ore processing options like you have done so people wouldn't expose themselves to mercury, vaporized lead, cyanide, nitric acid, and a bunch of related compounds that form during the processing. Again, I must say: "Well done, Jason!"

[merlin]

So just use cement barrier gold in then lead on top, melt to refine it. This video has been helpful, Thank You!

[GrooberNedJardine]

Looks like the Portland cement is the way to go, i bought bone ash, and made my own cupels, but it's too expensive, so that's a great alternative, although i have seen it used before, but your demo has convinced me, thanks, great demo, cheers .

[prinzga]

As a person that used chemicals etc to extract and I’m going to change over to this process. Thanks for sharing and educating me

[PbChemist]

some XRF scans of these buttons before and after would be really informative.

[stevetreloar]

Your capacity to simplify what others make complex amazes me. That was an awesome demonstration. Thank you.

[Askjeffwilliams]

great vi Jason ....would use magnesite or Bone ash for the absorption . Litharge might be easier to use as well. Beautiful chunks of Shiney keep up the great work my friend.

[brandonbranco]

Great video! Question, is there a ratio of gold to lead to do this? Also, how long does it take for the lead to absorb into the concrete powder?

[johandupie]

Qouted = Portland cement is the most common type of cement in general use around the world as a basic ingredient of concrete, mortar, stucco, and non-specialty grout. It was developed from other types of hydraulic lime in England in the late 19th century by Joseph Aspdin, and usually originates from limestone

[walkswithantsbear]

Most important take away from this video.
Portland is a great alternative to bone ash crucibles
Thanks so much. Great tutorial

[pertinentparadigm]

Macgyver gold channel, love your take on refining!

[mckutzy]

Very interesting...

Is there a specific ratio to the Lead and "gold" button prior to refining???

[izysly]

Could you show how to "cement " gold onto copper in a furnace?
I would be so grateful.
P.s. thank you for uploading this video.

[murkypuddle]

thats just so amazing. i guess thats how most did it in the old days! well, if i ever need to refine gold, you can be sure i'm going to do it this way

[JBBURG]

Are you sure that much lead is needed?. And are you sure there is no more lead left in the gold?. I make jewelry out of gold and silver. And i've been thinking of a way to purify ten fourteen k gold into some more shiny pure k gold
... Also, are you certain you're just losing base? Metals and not losing any gold?

[gabrial]

I just watched that gold lead melt! Piece of cake

[nenitacapistrano]

Wow! Its incredible, its become shiny and beautiful gold.and also have improve the the grams.

[catgynt]

What would happen if you only used 50gm of lead? Thanks for sharing this video. Interesting experiment. Wishing you and your team another great week. Cheers,

[johnslugger]

*You need to pack this REAL tight in an Hydraulic press. The tighter the cupel material is pressed the less Gold goes into it! Also an electric kiln is the best way to heat a Cupel since it soaks up too much CO2 gas from the torch and this slows the process down by 400%.*

[leewhite]

How is this any different to boiling several tons of acids? Seems way, way easier.