闪锌矿氧化氨浸行为研究  

Behavior of Sphalerite in Oxidative Ammonia Leaching Process

作　　者：黄雅玲[1] 尹周澜[1] 丁治英[1] 刘春霞[1] HUANG Ya-ling;YIN Zhou-lan;DING Zhi-ying;LIU Chun-xia(College of Chemistry and Chemical Engineering,Central South University,Changsha 410083,China)

机构地区：[1]中南大学化学化工学院,长沙410083

出　　处：《有色金属（冶炼部分）》2018年第9期7-10,共4页Nonferrous Metals（Extractive Metallurgy)

基　　金：国家重点基础研究发展计划(973计划)资助项目(2014CB643401);国家自然科学基金资助项目(51404299)

摘　　要：在NH_3-(NH_4)_2SO_4体系中,采用氧化氨浸出工艺研究了不同氧化剂(Na_2S_2O_8和BaO_2)对闪锌矿氧化氨浸行为的影响。结果表明,在110℃、常压、总氨浓度4mol/L、[NH_3]/[NH_4^+]=5/3、转速500r/min、液固比25、粒度0.063mm、浸出时间4h的条件下,以Na_2S_2O_8和BaO_2为氧化剂时,锌浸出率分别为28.4%和82%。In NH3-（NH4）2SO4 system,effect of oxidants（Na2S2O8 and BaO2）on leaching behavior of sphalerite was studied by ammonia oxidation leaching process.The results show that zinc leaching rate is 28.4% and 82%respectively with Na2S2O8 and BaO2 as oxidant under the conditions including temperature of 110 ℃,total NH3 concentration of 4.00 mol/L,[NH3]/[NH4~＋]=5/3,agitation speed of 500 r/min,L/S of 25,particle size of 0.063 mm,and leaching time of 4 h.

关 键 词：闪锌矿 氧化氨浸 NH3-(NH4)2SO4体系 Na2S2O8 BaO2 

分 类 号：TF813[冶金工程—有色金属冶金]