Ultimate recovery in heap leaching operations as established from mineral exposure analysis by X-ray microtomography

被引：57

作者：

Miller, JD

Lin, CL

Garcia, C

Arias, H

机构：

[1] Univ Utah, Coll Mines & Earth Sci, Dept Met Engn, Salt Lake City, UT 84112 USA

[2] Co Minera Zaldivar, Antofagasta, Chile

来源：

INTERNATIONAL JOURNAL OF MINERAL PROCESSING | 2003年 / 72卷 / 1-4期

关键词：

heap leaching; mineral exposure analysis; X-ray microtomography;

D O I：

10.1016/S0301-7516(03)00091-7

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The question of ultimate recovery in heap leaching operations is always of particular concern with respect to economic considerations. Of course, the particle size distribution is a critical factor which determines ultimate recovery and which must be established based on a balance between the extent of mineral exposure and transport phenomena. Now it seems that the ultimate recovery for a given particle size distribution can be established from mineral exposure analysis by X-ray microtomography (XMT). Using recently developed software, micro-computed tomography (CT) data can be used to determine the fraction of mineral exposed and thus the ultimate recovery. Examples of mineral exposure analysis are given for the copper heap leaching operation at Zaldivar, Chile. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：331 / 340

页数：10