公开(公告)号：US4107265A

公开(公告)日：1978-08-15

申请号：US800602

申请日：1977-05-25

申请人： Adolf VON Ropenack ,  Volker Wiegand ,  Gunter Smykalla

发明人： Adolf VON Ropenack ,  Volker Wiegand ,  Gunter Smykalla

IPC分类号： C22B13/00 ,  C01G9/06 ,  C22B3/00 ,  C22B3/08 ,  C22B7/00 ,  C22B19/00 ,  C22B19/20

CPC分类号： C22B11/04 ,  C22B13/04 ,  C22B19/22 ,  C22B3/08 ,  Y02P10/214 ,  Y02P10/234

摘要： A process for treating a residue from the sulfuric acid leaching of roasted zinc blende, comprising(a) leaching the residue in a single stage with sulfuric acid and a metal sulfide supplied in a quantity sufficient for transforming the iron into divalent iron, the temperature being maintained between about 60.degree. C and the boiling point,(b) heating the mass to a temperature above the melting point of sulfur, separating a first fine-grained residue of low zinc and iron contents and high lead content, and separating a coarse-grained residue containing sulfur, compounds of iron and any excess metal sulfide from (a),(c) adjusting the pH of the residual solution to at most about 2, at a temperature between about 80.degree. C and the boiling point adding zinc dust thereby to precipitate copper and separating the precipitate,(d) adjusting the pH to about 4 to 5 and separating the precipitate which forms, and(e) oxidizing the residual solution to precipitate iron as hematite, and separating the hematite from the purified zinc-containing solution.

摘要翻译： 一种用于处理来自硫酸锌闪锌矿的硫酸浸出的残留物的方法，其包括（A）在具有硫酸的单一阶段中浸出残留物和以足够数量提供的金属硫酸盐将铁转化为多种铁，温度为 维持在约60℃和沸点之间，（B）加热到高于硫化物的温度的温度，分离低锌和铁含量和高铅含量的第一个细粒度残留物，并分离粗糙度， （A），（C）将残余溶液的PH调节至至多约2，在约80℃的温度和沸点之间加入锌粉由此形成的含有硫的残留物，铁的化合物和任何过量的金属硫化物 以沉淀铜并分离沉淀物，（D）将PH调节至约4至5并分离形成的沉淀物，和（E）将剩余溶剂氧化成硫化物，并分离T 从纯化的含锌溶液中除去。

公开(公告)号：US4789446A

公开(公告)日：1988-12-06

申请号：US101714

申请日：1987-09-28

申请人： Adolf Von Ropenack ,  Winfried Bohmer ,  Gunter Smykalla ,  Volker Wiegand

发明人： Adolf Von Ropenack ,  Winfried Bohmer ,  Gunter Smykalla ,  Volker Wiegand

IPC分类号： C22B7/00 ,  C22B3/00 ,  C22B3/04 ,  C22B3/08 ,  C22B3/44 ,  C22B7/02 ,  C22B15/00 ,  C22B19/00 ,  C22B19/20 ,  C22B19/30 ,  C22B21/00 ,  C22B41/00 ,  C22B58/00 ,  C25C20060101 ,  C25C1/14 ,  C25C1/16 ,  C25D1/16

CPC分类号： C22B19/22 ,  Y02P10/234

摘要： In conjunction with an electrolytic production of zinc, the residues are processed so that the residue is leached with cell acid at a temperature from 50.degree. to 100.degree. C. in such a manner that a concentration of free acid from 10 to 100 g/l is obtained at the end of the leaching. The undissolved matter is separated from the suspension, the separated matter is supplied to the acid leaching step performed in the electrolytic production of zinc, and fine-grained metallic iron is added to the solution from which the undissolved matter has been removed so that copper is precipitated. The precipitated copper is separated and the liquid phase from which the precipitated copper has been separated is supplied to one of the stages which precede the precipitation of iron in the electrolytic production of zinc.

摘要翻译： 结合锌的电解生产，处理残余物，使得残余物在50℃至100℃的温度下以细胞酸浸出，使得游离酸的浓度为10至100g / l 在浸出结束时获得。 将未溶解​​的物质与悬浮液分离，将分离的物质供给到在​​电解生产锌中进行的酸浸出步骤，并且将细粒金属铁加入到其中去除未溶解物质的溶液中，使得铜为 沉淀 将析出的铜分离，将析出的铜分离出的液相供给到在电解生产锌中铁析出之前的一个阶段。