Dummies Guide to GOLD bullion refining at home as a long ...

Feb 24, 2012· Summarized, the process is simply: 1. place the scrap gold into nitric acid to dissolve all other metal "impurities" 2. filter the resulting blue solution and trap the gold 3. apply a mixture of 1:3 nitric/hydrochloric acid (aqua regia) to the gold to completely dissolve it 4. filter the resulting yellow liquid to remove any remaining impurities

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Extracting Gold | HowStuffWorks

Removing the gold-bearing rock from the ground is just the first step. To isolate pure gold, mining companies use a complex extraction process. The first step in this process is breaking down large chunks of rock into smaller pieces. At a mill, large machines known as crushers reduce the ore to ...

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RECOVERY AND REFINING WITH JUST NITRIC ACID SUBSTITUTE

how can you refine with just nitric acid? the answer is simple, nitric acid or our nitric substitute acid will desolve all metals except for gold. some platinum group metals (platinum,rhodium,etc) may not desolve. this is not an issue because if you sort your materials properly you will not have any platinum group metals in the mix.

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Dissolving Gold and Precipitating Gold - Pyrometallurgy ...

Mixing muriatic acid (hydrochloric acid) with bleach (sodium hypochlorite), you are freeing chlorine to attack the gold. You are making gold chloride. Try exposing the solution to ultraviolet light, to break the bond between the gold and the chlorine molecules.

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Muratic/Peroxide solution,how to continue - Gold Refining ...

Nov 05, 2011· My 1st attempt at gold recovery stopped in its tracks. I took a friends advice and tried 2 parts Muratic acid and 1 part Hydrogen Peroxide to extract gold from pc boards and cell phones. He has since went missing and I dont know what the remainder of this process is. I'm a single father so a cheap process is what I need.

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How to Refine Gold by the Acid Method - ishor.com

If any gold is still dissolved in the acid, the wet spot will turn a purple-black or a purple-brown. If you see this color change then give the precipitant more time to work and/or add more precipitant, and repeat the test until you determine that no gold is dissolved in acid. 11. Pour and rinse your pure gold with acid

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What Happens When You Put Gold in Muriatic Acid? | Sciencing

Mar 13, 2018· Gold is probably the most treasured of the so-called precious metals, having been used in art and jewelry for centuries and more recently finding applications in medicine, coins and elsewhere. Muriatic acid, better known today as hydrochloric acid, is a simple, corrosive liquid with well-studied chemical properties. ...

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Dissolving Gold in Hydrochloric Acid and Hydrogen Peroxide ...

Apr 21, 2014· Dissolving Gold in Hydrochloric Acid and Hydrogen Peroxide Boris Petrov. ... How to Recover Gold with A/P Acid peroxide method for gold fingers and gold plated boards easily.

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Gold Recovery Correctly: 12 Steps - instructables.com

May 23, 2018· Though gold is valuable, the most common sources of gold are rarely pure. Whether it is freshly mined gold ore or a refined gold used in jewelry, contaminants and unwanted minerals are usually present. Nitric acid can be used to refine gold, but you must be careful during the process.

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A Method for Leaching or Dissolving Gold from Ores or ...

A Method for Leaching or Dissolving Gold from Ores or Precious Metal Scrap Nicolas Geoffroy and François Cardarelli ... Note that the vapor pressure of the acid corresponds to the sum of the vapor pressure ... Plattner process, gold was dissolved into chlorine water (i.e., water saturated by

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Washing Activated Carbon - Mineral Processing & Metallurgy

In the process of washing activated carbon, a dilute hydrochloric acid solution (3%) is circulated/pumped into the elution column. The acid dissolves inorganic foulants such as calcium carbonate, magnesium and sodium salts, fine ore Minerals such as silica, and fine iron particles. The carbon acid wash cycle takes about 4.30 hours. Acid washing may also help in removing some of the …

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Gold Recovery from Gold Plated Pins and Connector Pins

Gold plated pins Recycling: First of all weight the pins. Your pot should be twenty percent bigger. One kg connector pins need 20-liter pot. Dip 1 kg connector pins in five litter HCl (hydrochloric acid or muriatic acid). Then add 1-liter water. Approximately 1 to 1.5 L nitric acid will use for I kg gold …

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Hydrochloric acid - Wikipedia

Hydrochloric acid or muriatic acid is a colorless inorganic chemical system with the formula H 2 O:HCl.Hydrochloric acid has a distinctive pungent smell. It is classified as strongly acidic and can attack the skin over a wide composition range, since the hydrogen chloride completely dissociates in aqueous solution.. Hydrochloric acid is the simplest chlorine-based acid system containing water.

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Gold filled Recovery Using Muriatic Acid Part #1 - YouTube

Sep 05, 2016· dissolving the base metals out of gold filled items. Skip navigation ... Gold filled Recovery Using Muriatic Acid Part #1 ... How to Recover Gold with A/P Acid peroxide method for gold fingers and ...

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Refining Gold Using Muriatic and MX3 - ishor.com

Refining Gold Using Muriatic and MX3. Introduction. The acid used in this process is muriatic (also known as hydrochloric) acid. ... it must be pointed out that, like most industrial processes, refining gold in acid is quite safe when performed under controlled conditions. In addition, the results of doing your own refining can be quite sweet ...

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gold processing with muratic acid and chlorine bleach

gold processing with muratic acid and chlorine bleach . What happens when you put gold in muriatic acid? eHow UK. What happens when you put gold in muriatic acid?. of muriatic acid, this leaves a chloride dissolving of gold in this manner.

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Gold Refining Forum.com • V

AR= Aqua Regia = 1 part 70% Nitric Acid, 3 parts Muriatic Acid (some guys use 4 parts muriatic). Used to dissolve high karat gold, gold powder, gold foils, dissolves Platinum when hot. Excess nitric must be evaporated off or neutralized with Urea to pH 1 +/- 0.4, then drop gold with SMB.

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Can gold be dissolved in sulphuric acid alone? Iodine?

Can gold be dissolved in sulphuric acid alone? 2002. Q. Dear All, ... A. Sulfuric acid can dissolve gold, but it is a very dangerous process as the sulfuric acid has to be concentrated and heated to the point sulfur dioxide gas is fumed off, silver or gold will dissolve gold will form a gold persulfate soluble in the very concentrated acid ...

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Gold Processing With Muratic Acid And Chlorine Bleach

gold processing with muriatc acid - Gold processing with Muratic acid and chlorine bleach. Theres Gold in Them Thar Computers (18 pics) Izismile.com. 27 Aug 2010 Heres a process of gold ...

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Aqua regia - Wikipedia

Aqua regia (/ ˈ r eɪ ɡ i ə, ˈ r iː dʒ i ə /; from Latin, lit. "regal water" or "king's water") is a mixture of nitric acid and hydrochloric acid, optimally in a molar ratio of 1:3. Aqua regia is a yellow-orange (sometimes red) fuming liquid, so named by alchemists because it can dissolve the noble metals gold and platinum, though not all metals.

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Hydrochloric acid - GoldRefiningWiki

(Main article : Dissolving gold with hydrochloric acid and hydrogen peroxide) Another alternative to aqua regia is to use hydrochloric acid and hydrogen peroxide, the hydrogen peroxide is a strong enough oxidizer to have the power to dissolve gold but not as fast as aqua regia. Often used on gold foils or powders. Copper chloride process

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Acid Peroxide Process Information Thread Q & A's - Gold ...

Oct 10, 2012· I get muriatic acid from the recyclers...they give it to me for free.... The trouble may be that it doesnt store well??? ... Im looking at everyones pictures and they have great filtered gold. I have done the process and at the bottom of my bucket is a bunch of grey pins after the gold has been cleaned, and a bunch of other board bits. ...

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What Is Muriatic Acid? Facts and Uses - ThoughtCo

Muriatic acid is one of the names for hydrochloric acid, a corrosive strong acid. It is also known as spirits of salt or acidum salis. "Muriatic" means "pertaining to brine or salt". The chemical formula for muriatic acid is HCl. The acid is widely available at home supply stores.

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Screwtape Files: Urban Mining and Refining for Gold

Apr 25, 2012· Urban Mining and Refining for Gold ... The motherboards are the hardest to process followed by the video cards, sound cards, etc. The older the equipment the better. ... Pour in three parts HCl (muriatic acid from Home Depot) and one part 1% hydrogen peroxide (from the pharmacy) until the fingers are covered.

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Bench Tip #9: Use the Touchstone Method for Testing Purity ...

The purer the gold, the stronger the acid required to dissolve it. Measured strengths of nitric acid are used to test for 14k and lower. Aqua regia, a mixture of one part nitric acid and three parts hydrochloric acid, is used to test higher karat purity through the process of comparison and elimination.

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Will muriatic acid clean gold - answers.com

Gold is not a very reactive metal and muriatic acid would not have much effect on it, you probably need to Polish the scratches out if it looks dirty. or you need to check if it is real gold.

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How to Refine Gold (with Pictures) - wikiHow

Jan 24, 2018· How to Refine Gold. You may want to make some extra money by refining your own gold at home, or you may be a jeweler who wants to refine gold in-house. There are multiple ways to refine gold on a small scale as …

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what color will gold turn muriatic acid - BINQ Mining

Dec 31, 2012· Sulfuric Acid Gold Test Procedures | eHow.com … it will turn brown. … How to Test Gold With Muriatic Acid.Gold is a type of metal represented by the chemical symbol … Its shiny yellow color made it popular … »More detailed

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Gold Recovery! - You Easily Do It Yourself! — Steemit

Gold Recovery! - You Easily Do It Yourself! ... 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. ...

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"Gold Recovery for Dummies?" - Finishing

If the acid solution containing the dissolved gold is murky, it may contain particles and should be re-filtered with a finer grade paper filter. 6. Slowly, add the water/urea (urine ) to the acid solution containing the dissolved gold. The acid solution containing the dissolved gold will foam with the addition of the water/urea (urine).

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