云南某炼锌渣中锗铟的硫酸浸出

金属矿山 ›› 2016, Vol. 45 ›› Issue (07): 189-192.

云南某炼锌渣中锗铟的硫酸浸出

袁华玮^1,2，刘全军^1,2，张治国^1,2

1.复杂有色金属资源清洁利用国家重点实验室，云南昆明 650093；2.昆明理工大学国土资源工程学院，云南昆明 650093

出版日期:2016-07-15 发布日期:2016-08-22

Germanium and Indium Leaching by Sulfuric Acid from a Zinc Smelting Slag in Yunnan

Yuan Huawei^1,2，Liu Quanjun^1,2，Zhang Zhiguo^1,2

1.State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization，Kunming 650093，China；2.Faculty of Land Resource Engineering ，Kunming University of Science and Technology，Kunming 650093，China

Online:2016-07-15 Published:2016-08-22

摘要/Abstract

摘要： 稀散金属锗、铟是重要的战略资源，常伴生在铅锌矿或煤中，主要从锌冶炼渣或煤燃烧后的烟尘中提取。云南某铅锌矿冶炼厂的高硅炼锌渣中锗、铟含量分别为126.00、358.00 g/t，SiO2含量为24.62%，为高效低耗浸出其中的锗、铟，以硫酸溶液为浸出剂进行了浸出工艺条件研究。结果表明：在磨矿细度为-0.074 mm占81%、硫酸溶液的浓度为110 g/L、液固比为3、搅拌强度为350 r/min、浸出温度为70 ℃、浸出时间为4 h情况下，试样中锗、铟的浸出率分别达87.90和89.88%。

关键词: 炼锌渣, 硫酸浸出, 锗铟浸出率

Abstract: Rare metals germanium and indium are important strategic resources，they are commonly associated with lead-zinc ore or coal，and mainly extracted from zinc smelter slag and ash of burning coal.The content of germanium，indium and SiO2 is 126.00 g/t，358.00 g/t and 24.62% in zinc smelting slag with high silicon from a lead-zinc smelter in Yunnan.In order to high efficiently leaching the germanium and indium，acid-leaching technology was research.Results showed that the leaching rate of germanium and indium can reach 87.90% and 89.88% under the optimal conditions of grinding fineness of 81% -0.074 mm，sulfuric acid concentration 110 g/L，liquid-solid ratio of 3，stirring speed of 350 r/min，leaching temperature of 70 ℃，leaching time of 4 h.

Key words: Zinc smelting slag, Sulfuric acid leaching, Leaching rate of germanium and indium

袁华玮, 刘全军, 张治国. 云南某炼锌渣中锗铟的硫酸浸出[J]. 金属矿山, 2016, 45(07): 189-192.

YUAN Hua-Wei, LIU Quan-Jun, ZHANG Zhi-Guo. Germanium and Indium Leaching by Sulfuric Acid from a Zinc Smelting Slag in Yunnan[J]. Metal Mine, 2016, 45(07): 189-192.

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