高铁闪锌矿精矿高氧催化氧化氨浸工艺试验  

High Iron Containing Sphalerite Concentrate by Catalytic Oxidation under High Pressure Oxygen and Ammonia Water Leaching

作　　者：王书民[1,2] 樊雪梅[2] 张国春[2] 郑行望[1] 

机构地区：[1]陕西师范大学化学与材料科学学院,西安710062 [2]商洛学院化学与化学工程系,陕西商洛726000

出　　处：《有色金属》2011年第2期155-158,共4页Nonferrous Metals

基　　金：陕西省教育厅专项科学研究基金资助项目(98JK035);陕西省教育厅专项科学研究基金资助项目(06JK305)

摘　　要：采用L25(56)正交设计表,研究高铁闪锌矿精矿高氧催化氧化氨浸工艺的最佳工艺条件。结果表明,在25℃、氧分压为600kPa、液固比为7.0条件下,以碳铵-氨水-双氧水-催化剂体系氧化浸出高铁闪锌矿精矿8h,锌、铜、镉的浸出率分别可以达到93%,94%,91%,浸取液中不含铁。The optimal condition for the ammonia catalytic oxidation of the high iron containing sphalerite with high pressure oxygen is investigated by orthogonal experiment using table of L25（56）.The results show that the leaching rates of zinc,copper,cadmium from the high iron containing sphalerite are up 93%,94% and 91%,respectively,by salvolatile-ammonia water-perhydrol-catalyst system under the condition of 25℃,600kPa oxygen partial pressure,7.0 L/S ratio,leaching time 8h,and there is no iron in solution.

关 键 词：冶金技术 铁闪锌矿 催化氧化 氨水 浸出率 

分 类 号：TF813[冶金工程—有色金属冶金] TF803.21