从钴冰镍浸出液中回收镍钴  

Nickel and Cobalt Recovered from Cobalt-nickel Matte Leaching Lixivium

作　　者：周雍茂[1] 胡宝磊[1] 

机构地区：[1]中南大学冶金科学与工程学院,长沙410083

出　　处：《有色金属（冶炼部分）》2012年第6期11-13,共3页Nonferrous Metals（Extractive Metallurgy)

摘　　要：以Na2S为沉淀剂,采用硫化沉淀法从钴冰镍三段浸出液中回收其中的钴、镍等有价金属。通过单因素试验,考察了Na2S的加入量、酸度(pH)、反应温度和时间等因素对浸出液中铁、镍、钴沉淀率的影响。结果表明,适宜工艺条件为Na2S的过量系数3.0,pH=3.0～3.5,反应温度60℃,反应时间2h,钴、镍、铁的沉淀率分别为99%、98%、90%。Cobalt, nickel, and other valuable metals were recovered from cobalt-nickel matte three-stage leaching lixivium with precipitation process with Na2S as precipitant. The effects of dosages of Na2S, acid- ity （pH）, temperature and time on precipitation rates of Fe, Ni, Co with single factor experiment. The re- suits show that the precipitation rates of Co, Ni, Fe are 99% ,98% ,90%, respectively, under the optimum conditions including Na2S excessive coefficient of 3.0, pH of 3.0-3.5, temperature of 60 ℃, and time of 2h.

关 键 词：镍 钴 铁 硫化钠 钴冰镍 

分 类 号：TF815[冶金工程—有色金属冶金] TF816