Replies 7 Views Oct 28, Alabama New guy to the group. Replies 2 Views Oct 11, Martijn. First time refining gold from scrap. Replies 17 Views Nov 2, GoIdman. What all can the AP method be used for. Ragesdad Feb 5, Chemical Processes. Feb 7, Geo. Xsvfan1 Sep 21, Chemical Processes. Sep 22, BShan. Latest posts T. Are these silver? Latest: Tevlon 8 minutes ago. Types of PM Scrap. Information wants to be free Latest: FrugalRefiner 14 minutes ago.
Gold content "non-stamped" jewelry for sale Latest: Alabama 22 minutes ago. For Sale or Trade. Introductions - About Yourself. Chemical Processes. Gold will not drop Latest: lazersteve Today at PM. Use a magnet to separate all gold plated steel this needs a different process than I am demonstrating. Apply all safety gear correctly before working with chemicals and do this outside as the fumes are nasty.
Put the gold fingers and clean circuit boards in the coffee pot, in another container mix two parts muriatic acid and one part hydrogen peroxide and add to the coffee pot until it just covers the gold fingers and wait a week giving it a stir daily.
Since I have a week I will move on to processing my solid low grade gold parts. Setup the scale remembering to zero it by adjusting the screw on the left.
Cupellation is a process where ores or alloyed metals are treated under high temperatures and controlled operations to separate noble metals, like gold and silver, from base metals like led, copper, zinc, and others present in the ore or alloyed metal. The process is based on the principle that precious metals do not oxidize or react chemically, like the base metals; so when they are heated at high temperatures, the precious metals remain apart and the others react forming slags or other compounds.
Cupellation is simple weigh the solid pieces of low grade gold, burn the crap out of it until you get no more slag and it becomes a nice bright yellow bead, and then you weigh it after it cools.
My solid low grade gold parts with garbage attached went from grains to A week has passed and it is time to collect your gold flakes and dust from your cleaned fingers and circuit boards, after a week the acid darkens and with a stir the flakes of gold can be seen floating around in the pot.
Pouring the acid into a coffee filter the acid passes through the filter leaving the gold behind, save the acid do not dump it down the drain. Next dump the remaining fingers and circuit boards into a deep plastic tray and add water, sort out the cleaned of gold parts, put the cleaned parts in the waist and save the un-cleaned parts for re-dipping.
After you have sorted the circuit board parts pour the water off through the coffee filter and flush with methyl hydrate to clean. Since the methyl hydrate is There are basically two methods of melting gold flakes and dust to recover gold available to the average person, the mercury method called Gold-Mercury Amalgam with its obviously toxic by-products and the Borax Method. I do not recommend the mercury method it works but it is extremely toxic for generations. The Borax Method is a technique of artisanal gold mining, with its basis in the principle that borax reduces the melting point of all minerals, including precious metals like gold.
By adding borax to the heavy mineral concentrate, the melting point temperature decreases, allowing people to melt gold out of their concentrate and salvage. By using borax, no mercury flour is produced, and gold recovery increases. Take your cleaned gold flakes and weigh them, this tells you how much you lose in melting and cupellation when melting the flakes. There you have it gold from electronics, one troy Oz is grains and I have I think I will retire. A great instructable, here in the UK trying to just get Muriatic acid is almost impossible unlike the USA where you can get it from just about any hardware store.
Reply 3 years ago. I got a question. I have been refining gold pins with nitric acid. The issue is this. Location Warsaw , Ind. In the heart of the lakes, and down the street from the hotel where Al Capone stayed. Thanks 11, Thanked 10, Times in 4, Posts. Yep, definitely brass and alum probably cast.
Thanks Thanked 1, Times in Posts. Yes cast aluminum and brass. Cast aluminum becomes shinny like that when it is machined. Thanks Thanked Times in Posts. I have about 20 vcrs left to be tackled Brass and aluminum.
I just take the motors and as much brass and aluminum I can get before I get frustrated and throw the rest in shred. There are a ton of tiny brass pieces but they take a lot of smashing and prying to get out. Replies: 3 Last Post: , AM. Replies: 5 Last Post: , PM. Gold and silver Crash?
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