MACROSCOPIC TRANSPORT MECHANISMS AS A RATE-LIMITING FACTOR IN DUMP LEACHING OF PYRITIC ORES

被引：51
|
作者：
PANTELIS, G
RITCHIE, AIM
机构：
[1] Environmental Science Program, Australian Nuclear Science and Technology Organization, Menai, NSW
来源：
APPLIED MATHEMATICAL MODELLING | 1991年 / 15卷 / 03期
关键词：
PYRITE OXIDATION; BIO-LEACHING; MATHEMATICAL MODEL; CONVECTION-DIFFUSION;
D O I：
10.1016/0307-904X(91)90022-H
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The oxidation of mining heaps containing pyrite is modelled as a coupling of macroscopic transport and the microscopic particle reaction kinetics. A numerical model is developed incorporating oxygen and heat transport based on the two major mechanisms of convection and diffusion. We examine separately the oxidation of single particles and compare these rates with that of an entire heap to establish the rate limitation imposed by macroscopic transport.
引用
收藏
页码：136 / 143
页数：8
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