Leaching of silver from solid waste using ultrasound assisted thiourea method

被引：74

作者：

Öncel, MS ^{[1
]}

Ince, M

Bayramoglu, M

机构：

[1] Gebze Inst Technol, Fac Engn, Dept Environm Engn, TR-41400 Kocaeli, Turkey

[2] Univ Istanbul, Fac Engn, Dept Chem Engn, TR-34850 Istanbul, Turkey

来源：

ULTRASONICS SONOCHEMISTRY | 2005年 / 12卷 / 03期

关键词：

silver; thiourea; ultrasound; leaching; optimization; steepest ascent;

D O I：

10.1016/j.ultsonch.2003.10.007

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

Thiourea leaching of precious metals such as gold and silver from ores has several advantages when compared with conventional cyanidation process. In recent years, the use of ultrasound in leaching processes is becoming increasingly popular in hydrometallurgy. This paper deals with combining these two techniques for silver leaching from solid waste of a cyanidation leach plant located in Kutahya, Turkey. The primary aim of this research is to assess the technical performance of the method. To achieve maximum leaching yield, eight process variables have been selected to estimate optimum process conditions by means of statistical factorial design and steepest ascent techniques. Laboratory-scale experiments showed that complete leaching of silver may be achieved by this process. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：237 / 242

页数：6

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