RECOVERY OF GOLD WITH ION-EXCHANGE RESIN FROM LEACHING SOLUTION BY ACIDOTHIOUREATION

被引：13

作者：

NAKAHIRO, Y ^{[1
]}

HORIO, U ^{[1
]}

NIINAE, M ^{[1
]}

KUSAKA, E ^{[1
]}

WAKAMATSU, T ^{[1
]}

机构：

[1] YAMAHA CO LTD,SHIZUOKA,JAPAN

来源：

MINERALS ENGINEERING | 1992年 / 5卷 / 10-12期

关键词：

GOLD; ION EXCHANGE RESIN; THIOUREA;

D O I：

10.1016/0892-6875(92)90174-8

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Elemental gold present in ores is easily dissolved by leaching with a solution of sulfuric acid and thiourea in the presence of ferric ions as oxidizing agent. The authors previously found that lixiviation was dependent on concentrations of thiourea, ferric ions and sulfuric acid, and also temperature and leaching lime. In the present study, a series of adsorption tests using strong acidic cation exchange resins was carried out on a pregnant solution containing thiourea complexes of gold, iron, copper and zinc, and then elution tests were conducted, using different types of eluates. It was found that Amberlite 200, among the ion exchangers used, was effective for the recovery of Au(CS(NH2)2)2+. Using Amberlite 200C, gold could be separated from other metal thiourea complexes through adsorption and elution processes.

引用

页码：1389 / 1400

页数：12

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