Study on Pure Mercurous Chloride Leaching with Sodium Thiosulfate

被引：3

作者：

Han, Chao ^{[1
]}

Wang, Wei ^{[2
]}

Xie, Feng ^{[2
]}

Wang, Guangxin ^{[1
]}

Volinsky, Alex ^{[3
]}

Gekhtman, Moses ^{[4
]}

机构：

[1] Henan Univ Sci & Technol, Sch Mat Sci & Engn, Res Ctr High Pur Mat, Luoyang 471023, Peoples R China

[2] Northeastern Univ, Sch Met, Shenyang 110819, Liaoning, Peoples R China

[3] Univ S Florida, Dept Mech Engn, Tampa, FL 33620 USA

[4] Univ Florida, Coll Liberal Arts & Sci, Gainesville, FL 32603 USA

来源：

RUSSIAN JOURNAL OF NON-FERROUS METALS | 2018年 / 59卷 / 06期

基金：

美国国家科学基金会; 中国国家自然科学基金;

关键词：

mercurous chloride; leaching; thiosulfate; disproportionate reactions; CHLORALKALI PLANT; TECHNOLOGIES;

D O I：

10.3103/S1067821218060056

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Mercurous chloride (Hg2Cl2), also known as Calomel, is a typical mercury-containing mineral found in nature. In this work, the leaching behaviour of pure mercurous chloride dissolved in pure water and in thiosulfate solution was investigated. The mercurous chloride hardly dissolved in sulfuric acid solution at pH of 3 and pure water at pH of 6.4, with the corresponding maximum Hg extraction percentage at 3.1 and 7.5% respectively. However, the Hg extraction percentage increased to 45.8% in sodium hydroxide solution at pH of 11.2. The mercury extraction percentage reached a high of 62.6% in thiosulfate solution, and the leaching kinetics results show that the activation energy is 6.6 kJ/mol. This study indicates that the thiosulfate solution can efficiently extract mercury from mercurous chloride.

引用

页码：589 / 595

页数：7

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