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alkali refining. in fat and oil processing: Alkali refining. Many of these can be removed by treating fats at 40Â° to 85Â° C (104Â° to 185Â° F) with an aqueous solution of caustic soda ( sodium hydroxide) or soda ash (sodium carbonate). The refining may be done in a tank (in which case it is called batch or tank refining) or in a continuous system.
gold refining chemicals list 2. 1  gold refining chemicals list - Mining equipment & mine process 2  ... gold refining chemicals list - Crusher South Africa world's top 100 mining stocks in Korea, Republic of. 3  How to Chemically Refine Gold | eHow Refining Systems Used to Make Gold Bars. Refining gold using chemicals is another common method. Gold is treated with sulphuric, hydrochloric or nitric acids. Gold/Silver refining Chemicals - eBay: 2 results found: 1/2 Ounce Stannous Chloride to check Gold, Platinum & P...