湿法炼锌钴镍渣综合回收的试验研究  

Experimental Study of Comprehensive Recovery of Cobalt-nickel Slag in Zinc hydro-metallurgy

作　　者：李建福 林琳 陈翠萍 涂文鸿 段俭 王东 秦泰 LI Jianfu;LIN Lin;CHEN Cuiping;TU Wenhong;DUAN Jian;WANG Dong;Qin Tai(Xinlian Environmental Protection Technology Co.,Ltd.,Honghe,Yunnan 661011,China;Faculty of Environmental Science and Engineering,Kunming University of Scienceand Technology,Kunming,Yunnan 650500,China)

机构地区：[1]鑫联环保科技股份有限公司,云南红河661011 [2]昆明理工大学环境科学与工程学院,云南昆明650500

出　　处：《云南冶金》2024年第4期104-108,共5页Yunnan Metallurgy

摘　　要：针对传统硫酸浸出湿法炼锌钴镍渣回收率低的情况,采用“酸洗-焙烧-选择性浸出”工艺进行处理。通过试验得到工艺的最佳条件:酸洗,L/S=3~4∶1、温度60~65℃、pH为1.5~2.0、反应时间0.5 h;焙烧,焙烧时间0.5 h;浸出,温度60~65℃、pH为4.5~5.0、L/S=3~4∶1、反应时间4 h。用该工艺对某钴镍3#渣进行处理,结果表明94%的锌可溶出,94%的钴、镍被富集在渣中,富集比为7。Because the traditional sulfuric acid leaching zinc hydro-metallurgy has a low recovery rate of cobalt-nickel slag,so we adopted the"acid pickling-roasting-selective leaching"process for treatment.Then the best process conditions can be got through tests:acid pickling:L/S=3~4∶1,temperature is 60~65℃,pH is 1.5~2.0,the reaction time is 0.5 h;roasting:roasting time is 0.5 h;leaching:temperature is 60~65℃,pH is 4.5~5.0,L/S=3~4∶1,reaction time is 4 h.The process is used for the treatment of cobalt-nickel 3#slag,results show that there are 94%zinc can be dissolved out,there are 94%cobalt and nickel can be enriched in slag,and the concentration ratio is 7.

关 键 词：有机钴镍渣 螯合物 酸洗 焙烧 选择性浸出 

分 类 号：TF813[冶金工程—有色金属冶金] TF816TF815