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refining gold with peroxide

The Inquartation method is one of the most common methods of refining low and medium karat gold jewelry (9K-18K) and can also serve the first step in refining sterling silver. Inquarting usually doesn’t apply to high karat gold jewelry (21K-24K) since it is low in silver content. A low silver content (less then 8%) will not create passivation of the metal and therefore can be dissolved ...

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  • Peroxide Acid Method

    Peroxide Acid Method

    stannous chloride, but it's sometimes hard to tell if there is gold present. If you plan on reusing the AP don't bother getting the gold out at all. I drop the gold from the AP when I'm ready to mix up a fresh batch. lazersteve AP using high percentage peroxide- BE CAREFUL! by The Refiner49er on Wed Feb 20, 2008 2:04 am

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  • Scrap Gold Recovery Gold Refining from scrap

    Scrap Gold Recovery Gold Refining from scrap

    Apr 11, 2010 Gold Refining from scrap There are several methods I’ve found to separate precious metals from other metals. To dissolve Copper from gold plated printed circuits or plated Brass pins / connectors. ... Also I’ve read you can use Hydrochloric Acid mixed 1:1 with Hydrogen Peroxide. This is a chemical used by some hobbyists to etch printed ...

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  • Sciencemadness Discussion Board Gold Recovery with Salt

    Sciencemadness Discussion Board Gold Recovery with Salt

    Jul 11, 2012 Gold Recovery with Salt Vinegar Bleach peroxide - VIDEO Here is all three parts of the video showing how the foils are lifted off the fingers. These videos are buried in another thread so I hope this is not counted as a double post; Part 1, using salt, vinegar and hydrogen peroxide to lift the foils from trimmed circuit card fingers.

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  • Alternate Gold Refining Methods Scrap Metal Forum

    Alternate Gold Refining Methods Scrap Metal Forum

    Jan 03, 2016 An alternate method to refine gold without Nitric Acid Very good with fingers from computer boards (described here). This method is quite slow compared to using Nitric Acid, but is nowhere near as toxic. List of Chemicals. Hydrochloric Acid; 3% Hydrogen Peroxide; Sodium Bi-Carbonate (Baking Soda) 90% Alcohol (Rubbing Alcohol from Chemist)

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  • How to Refine Gold 2 Major Techniques of Gold Refining

    How to Refine Gold 2 Major Techniques of Gold Refining

    Two (2) major techniques for refining gold. Generally, gold can be refined using these two-best-known gold-refining procedures: Aqua Regia and gold electrolysis. Both of these techniques can be used to separate gold from other metals. This is because a little piece of other metals in gold can change its properties and value.

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  • A green process for extracting gold New Atlas

    A green process for extracting gold New Atlas

    Feb 03, 2016 A research team at the University of Saskatchewan has found what may be an inexpensive and environmentally-friendly way of recycling gold from jewelry and electronics. Using a solution of what is ...

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  • How to Use Bleach on Gold Ore to Remove Gold Sciencing

    How to Use Bleach on Gold Ore to Remove Gold Sciencing

    Apr 24, 2017 This was the first commercial method used for gold extraction. Place the ore into the mortar and grind it to the size of sand grains. Put the ore grains into a plastic bowl. Add the 35-percent hydrochloric acid to the sodium hypochlorite bleach into a flask or beaker, in a two-to-one ratio of acid to bleach. Ensure that the liquid mixture is at ...

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  • Will hydrochloric acid and hydrogen peroxide dissolve gold

    Will hydrochloric acid and hydrogen peroxide dissolve gold

    Apr 30, 2020 Small Scale Refining of Jewelers Wastes by Roland Loewen pg. 175-176 C1995 wrote: Hydrogen Peroxide and hydrochloric acid will dissolve gold. This is used in several refineries. One refiner reported that the recovery of PGMs was much improved when hydrogen peroxide rather than nitric acid was the oxidizer.

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  • GOLD REFINING MADE SIMPLE

    GOLD REFINING MADE SIMPLE

    Jan 06, 2011 GOLD REFINING MADE SIMPLE This is a forum for all of those who wondered why your old electronics should be of interest to you ... this is where i put all of my cut off fingers and processors . in my bigger bucket i put a mix of Muriatic acid and peroxide,,This is a 2 to 1 mix, 2parts muriatic to 1 part peroxide ---example,, 1 cup of muriatic is ...

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  • Refining Electronic Scrap Can't get nitric acid any more

    Refining Electronic Scrap Can't get nitric acid any more

    Mar 10, 2010 I want to start gold refining from electronic scrap as hobby. Currently I can buy nitric acid 68% HNO3. I can try to get a small furnace also if needed. ... 1 part hydrogen peroxide. Cut gold fingers off computer boards, use tempered glass container or plastic. Put gold parts in container, cover with acid & peroxide. Do this outdoors.

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  • Extraction of Gold

    Extraction of Gold

    When the gold contains platinum and related metals, it is submitted to further refining. Part of the platinum is dissolved out by the treatment with nitric acid. Iridium was formerly slagged off by fusion with potassium nitrate, but all the platinum is simultaneously slagged, and can be recovered only by a cumbrous process.

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  • US4670052A Process for the recovery of gold from a

    US4670052A Process for the recovery of gold from a

    A process for the recovery of gold from a precious metal bearing sludge concentrate is disclosed. The process comprises the steps of leaching the sludge with hydrochloric acid and hydrogen peroxide to solubilize at least gold, palladium and platinum, removing silver from the leach slurry as insoluble silver chloride and selectively precipitating gold from the leach solution remaining after ...

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  • Gold Recovery amp Refining with Hydrogen Peroxide Easier

    Gold Recovery amp Refining with Hydrogen Peroxide Easier

    Jun 06, 2021 We are trying to find a fast, safe, and efficient way to recover more gold and oxidize the sulfides in our ore. Hydrogen peroxide is a strong oxidizer and i...

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  • Too much Peroxide Gold Refining Forum.com

    Too much Peroxide Gold Refining Forum.com

    Dec 01, 2016 When the gold plating is intact the gold will be attacked (wounded) by peroxide 2Au + H2O2 = 2Au+ +2OH- Then the attack goes preferably to copper hence the amount of gold …

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  • pin foils with vinegar peroxide and salt Gold Refining

    pin foils with vinegar peroxide and salt Gold Refining

    Nov 08, 2017 Whatever factors be most important, the peroxide and salt and vinegar solution. definitely has its limits, but still may be a viable option if the reagents are cheap. and further processing for the refining of the gold are planned for. But, this solution is definitely effective at removing base metals.

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  • Gold Recovery Correctly 12 Steps Instructables

    Gold Recovery Correctly 12 Steps Instructables

    Aug 07, 2011 To activate the solution you want to add your Hydrogen peroxide 3 - 5% solution in a 2 to 1 ratio. two parts muratic acid to one part hydrogen peroxide. after the Peroxide has been added to your muratic acid the mixture should start to bubble, and the base metals should begin to dissolve.

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  • Muriatic peroxide tap water liquify gold

    Muriatic peroxide tap water liquify gold

    i now have about 10 gallons of muriatic acid peroxide and water in 2, 5 gal. buckets and im sure my gold disolved with the tap water i need help to recover my gold from the 10 gal of mixed liquids and need to know what to buy and how to recover from all 10 gal any help im grateful for

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  • Gold Recovery 8 Steps with Pictures Instructables

    Gold Recovery 8 Steps with Pictures Instructables

    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.

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  • Shor International

    Shor International

    First immerse the end of the stirring rod in the acid. Remove it and touch that end to a paper towel to make a wet spot. Put a drop of gold detection liquid on the wet spot on the paper towel. If any gold is still dissolved in the acid, the wet spot will turn a purple-black or a purple-brown.

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