Extraction of manganese and zinc from their compound ore by reductive acid leaching
还原酸浸法从锰锌复合矿中综合回收锰和锌（英文）作者机构：School of Minerals Processing and Bioengineering Central South University Changsha 410083 China
出 版 物：《Transactions of Nonferrous Metals Society of China》 (中国有色金属学报（英文版）)
年 卷 期：2017年第27卷第5期
页 面：1172-1179页
核心收录：
学科分类：080602[工学-钢铁冶金] 080603[工学-有色金属冶金] 08[工学] 0806[工学-冶金工程]
基 金：Projects(51574284,51504293)supported by the National Natural Science Foundation of China Project(2013IB020)supported by the Science and Technology Program of Yunnan Province,China Project(CSUZC201606)supported by the Open-End Fund for the Valuable and Precision Instruments of Central South University,China
主 题：manganese.zinc compound ore hydrogen peroxide sucrose comprehensive utilization manganese zinc leaching
摘 要：Comprehensive utilization of low grade manganese?zinc compound ore containing lead and silver with a method of reductive acid leaching was *** to theφ?pH diagram of Mn?Zn?H2O system,Mn and Zn can be leached simultaneously in the pH range of?*** results showed that both hydrogen peroxide and sucrose were effective reductants which could intensify the simultaneous leaching of Mn and Zn into leachate as well as enrich Pb and Ag in the residue.95.88%of Mn and99.23%of Zn were extracted when the compound ore was leached with hydrogen peroxide in sulfuric acid media,meanwhile the contents of Pb and Ag in the residue were enriched to13.21%and489.36g/t,*** sucrose was used as the reductant,the leaching efficiencies of Mn and Zn separately achieved98.26%and99.62%,and contents of Pb and Ag in the residue were as high as13.92%and517.87g/t,respectively.
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