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首页> 外国专利> METHOD FOR THE RECOVERY OF COPPER FROM SULFUROUS LESSES USING HIGH PRESSURE AND TEMPERATURE LIXIVIATION, EXTRACTION THROUGH SOLVENTS AND ELECTROLYTIC EXTRACTION.

METHOD FOR THE RECOVERY OF COPPER FROM SULFUROUS LESSES USING HIGH PRESSURE AND TEMPERATURE LIXIVIATION, EXTRACTION THROUGH SOLVENTS AND ELECTROLYTIC EXTRACTION.

机译：高压高温浸提，溶剂萃取和电解萃取从含硫量少的铜中回收铜的方法

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A copper recovery process comprising the steps of: a) providing (200) a material containing copper sulfide; b) shred (202) said material containing copper sulphide to obtain a shredded material containing copper sulphide in sludge form; c) subjecting said sludges to a flotation (208) to separate materials containing copper sulfide and forming (210) a concentrated material containing copper sulphide; d) pressure leaching (220) of said concentrated material containing copper sulphide, at a temperature in the range of 210 ° C to 235 ° C in an oxygen-containing atmosphere, in a sealed pressure vessel of agitated leaching of multiple compartments, to form a product sludge; e) separating (228) said product sludge in a solution containing copper and a residue (280) containing solids; f) adjust the pH value of said copper-containing solution to a pH value lower than 2.2 by chemical adjustment (232) and combining said copper-containing solution with a dilution solution (250) to obtain a solution that it contains copper with adjusted pH, where the ratio between said solution containing copper and said dilution solution is in the range between 1: 4 to 1: 8; g) solvent extraction (252) and electrolytic extraction (254) of said adjusted pH solution containing copper to obtain a refined solution (260) and a copper cathode; h) applying said refining solution containing the acid to a heap leaching operation (262).
机译：一种铜的回收方法，包括以下步骤：a）提供（200）含有硫化铜的材料; b）切碎（202）所述含硫化铜的材料以获得含淤渣形式的硫化铜的切碎的材料; c）将所述污泥进行浮选（208）以分离含有硫化铜的材料，并形成（210）含有硫化铜的浓缩材料; d）在密封的压力容器中，在多个隔室中搅拌浸出，在210℃至235℃的温度下，在210℃至235℃的温度范围内，对所述含硫化铜的浓缩材料进行加压浸出（220），以形成产品污泥; e）在含铜的溶液和含固体的残余物（280）中分离（228）所述产物污泥; f）通过化学调节（232）将所述含铜溶液的pH值调节至低于2.2的pH值，并且将所述含铜溶液与稀释溶液（250）合并以获得溶液，其中所述溶液包含经调节的pH的铜，其中所述含铜溶液与所述稀释溶液的比例在1：4至1：8之间; g）所述的含有铜的调节pH溶液的溶剂萃取（252）和电解萃取（254），以获得精制溶液（260）和铜阴极; h）将所述包含酸的精制溶液施用于堆浸操作（262）。

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