Method for separating and recovering rare and precious metals in chlorination leaching liquid
A technology for chlorination leaching and rare and precious metals, applied in the direction of improving process efficiency, can solve the problems of high cost, low recovery rate, poor separation effect, etc., and achieve the effects of good adaptability, short process and low cost
Active Publication Date: 2016-07-20
JIANGXI COPPER CORP
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The invention discloses a method for separating and recovering rare and precious metals in chlorination leaching liquid. The chlorination leaching liquid of complex rare and precious metal materials is used as stock solution; a substance containing no heavy metal elements is used as a reducing agent; and the stock solution is selectively reduced through controlling potential to convert the rare and precious metals therein to simple substances step by step for precipitating to form various rare and precious concentrates, so that the rare and precious metals in the stock solution are effectively separated and recovered, selenium tellurium concentrates are obtained, and the purpose of separating and recovering the rare and precious metals in the chlorination leaching liquid is achieved. The method is short in flow, low in cost, easy to operate, high in adaptability, capable of treating various complex chlorination leaching liquid, excellent in separating effect of the rare and precious metals in the chlorination leaching liquid and high in recovery rate.
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