Optimization study of the leaching of roasted zinc sulphide concentrate with sulphuric acid solutions

被引：57

作者：

Çopur, M ^{[1
]}

Özmetin, C ^{[1
]}

Özmetin, E ^{[1
]}

Kocakerim, MM ^{[1
]}

机构：

[1] Ataturk Univ, Fac Engn, Dept Chem Engn, TR-25240 Erzurum, Turkey

来源：

CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION | 2004年 / 43卷 / 08期

关键词：

optimization; leaching; zinc sulphide; Taguchi method mevcut;

D O I：

10.1016/j.cep.2003.10.001

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

The Taguchi method was used to determine the optimum conditions for the dissolution of roasted zinc sulphide concentrate in H2SO4 solutions. The experimental parameters and their ranges were between 13 and 55 degreesC for the reaction temperature, 0.1-0.3 g cm(-3) for solid-to-liquid ratio, 24.02-48.77% for acid concentration (by mass), 10-50 min for reaction time, and 300-800 rpm for stirring speed. The optimum conditions were found to be 55 degreesC, 0.1 g cm(-3), 37.26% (by mass) H2SO4, 50 min and 300 rpm, respectively. Under these conditions, the dissolution of Zn + Cu in H2SO4 solutions was approximately 99%. In addition, some experiments were performed for alternative parameter levels, to minimise Fe dissolution while keeping the dissolution of Zn + Cu around maximum. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：1007 / 1014

页数：8

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