APPLICATION OF ATTRITION GRINDING IN ALKALINE LEACHING OF TETRAHEDRITE

被引：50

作者：

BALAZ, P ^{[1
]}

SEKULA, F ^{[1
]}

JAKABSKY, S ^{[1
]}

KAMMEL, R ^{[1
]}

机构：

[1] TECH UNIV BERLIN,INST MET,D-10623 BERLIN,GERMANY

来源：

MINERALS ENGINEERING | 1995年 / 8卷 / 11期

关键词：

ULTRAFINE GRINDING; ATTRITOR; MECHANICAL ACTIVATION; TETRAHEDRITE; LEACHING;

D O I：

10.1016/0892-6875(95)00097-A

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

This paper is concerned with the leaching of calcined tetrahedrite in a combined mechanochemical and chemical regime. The application of alkaline Na2S solution enables us, at temperatures of 84-96 degrees C and atmospheric pressure, to achieve total extraction of Sb and As with leaching times of 15-20 min for Sb and 20-40 min for As. The applied liquid/solid ratio (4.8-2.5) and energy inputs (82-157 kWh/t) are acceptable from the view-point of plant operation. The process of mechanochemical leaching, including simultaneous intensive grinding and leaching, enhances the extraction of metals from refractory tetrahedrite.

引用

页码：1299 / 1308

页数：10

共 29 条

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[9]

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[10]

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