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How to Chemically Refine Gold How to Chemically Refine Gold The quality of gold is measured by a rating known as carats This is why gold items are stamped with 10k 14k 18k etc aqua regia gold refiningfor low cost separation of gold silver platinum and palladium aqua regia process and its many derivations is the refining of metallic gold scrap as well as nitric acid during gold

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The Project Gutenberg eBook of Getting Gold by J C F

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Principles of Extractive Metallurgy

What is Extractive Metallurgy Deals with extraction of metals from its naturally existing ore minerals and refining them Minerals Inorganic compounds with more than one metal in association with non metals like S O N etc Naturally existing minerals are sulphides oxides halides like

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Process by Aqua Regia The Process by Aqua Regia was introduced at the Pretoria Mint after the Miller process had been tried and abandoned owing to the alleged difficulty of treating the gold bullion extracted by the cyanide process In

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