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
相关论文
共 50 条
  • [1] RATE-LIMITING FACTORS IN DUMP LEACHING OF PYRITIC ORES
    PANTELIS, G
    RITCHIE, AIM
    APPLIED MATHEMATICAL MODELLING, 1992, 16 (10) : 553 - 560
  • [2] MATHEMATICAL-MODELING OF RATE-LIMITING MECHANISMS OF PYRITIC OXIDATION IN OVERBURDEN DUMPS
    DAVIS, GB
    BULLETIN OF THE AUSTRALIAN MATHEMATICAL SOCIETY, 1984, 29 (03) : 429 - 430
  • [3] On the rate-limiting steps of pyritic refractory gold ore heap leaching: results from small and large column tests
    Bouffard, SC
    Dixon, DG
    MINERALS ENGINEERING, 2002, 15 (11) : 859 - 870
  • [4] Kinetic barrier networks: New insights on rate-limiting mechanisms in selective ion transport
    Wang, Wenguang
    Guo, Jing
    Zhang, Yanqiu
    Shao, Lu
    MATTER, 2024, 7 (08) : 2671 - 2673
  • [5] Determination of the Rate-Limiting Step in Fatty Acid Transport
    Cheng, Victoria
    Kimball, Dylan R.
    Conboy, John C.
    JOURNAL OF PHYSICAL CHEMISTRY B, 2019, 123 (33): : 7157 - 7168
  • [6] Investigation of the effect of mineralogy as rate-limiting factors in large particle leaching
    Ghorbani, Yousef
    Becker, Megan
    Petersen, Jochen
    Mainza, Aubrey N.
    Franzidis, Jean-Paul
    MINERALS ENGINEERING, 2013, 52 : 38 - 51
  • [7] RATE-LIMITING FACTOR IN RAT KIDNEY SLICE AMMONIAGENESIS
    PREUSS, HG
    WEISS, FR
    AMERICAN JOURNAL OF PHYSIOLOGY, 1971, 221 (02): : 458 - &
  • [8] DIAGNOSIS, THE RATE-LIMITING FACTOR OF BIOLOGICAL DEPRESSION RESEARCH
    VANPRAAG, HM
    NEUROPSYCHOBIOLOGY, 1993, 28 (04) : 197 - 206
  • [9] Interrogating metastasis: the rate-limiting mechanisms in tumor cell dissemination
    Palmer, Trenis D.
    Olsen, Erik
    Hansen, Amanda
    Mazzocca, Antonio
    Zijlstra, Andries
    CLINICAL & EXPERIMENTAL METASTASIS, 2009, 26 (07) : 920 - 920
  • [10] Is plasma HDL concentration rate-limiting for reverse cholesterol transport?
    Miller, NE
    ATHEROSCLEROSIS XI, 1998, 1155 : 857 - 859
12345