Fundamentals of zinc recovery from metallurgical wastes in the Enviroplas process

被引：50
作者：
Abdel-latif, MA [1 ]
机构：
[1] MINTEK, ZA-2125 Randburg, South Africa
来源：
MINERALS ENGINEERING | 2002年 / 15卷 / 11期
关键词：
recycling; environmental; pyrometallurgy; reaction kinetics; simulations;
D O I：
10.1016/S0892-6875(02)00133-4
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
The Enviroplas process was developed at Mintek to treat certain metallurgical wastes, such as lead blast furnace slag, electric are furnace dust, and neutral leach residues from the zinc industry. The process relies on a DC arc furnace and an ISP lead splash condenser for the direct recovery of the contained zinc as prime western grade metal, with the simultaneous production of a disposable slag. This paper outlines certain fundamental issues of the process, including feed preparation and specifications, operating temperatures, coke (coal) requirements, flux addition, and recycling of the fumes and the condenser dross. In addition, the chemical reactions involved and the associated kinetics are presented and discussed, as well as the major factors that influence the condensation process. Selected test results are also included to highlight the significance of the most important factors that affect the process. (C) 2002 Elsevier Science Ltd. All rights reserved.
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收藏
页码：945 / 952
页数：8
相关论文
共 11 条
  • [1] DAL I, 1993, INT S WORLD ZINC 93
  • [2] IGIEHON UO, 1992, T I MIN METALL C, V101, pC155
  • [3] Jones R., 1987, S APPL COMPUTERS MAT, V2, P265
  • [4] KELLOGG HH, 1967, T METALL SOC AIME, V239, P1439
  • [5] Quarm TAA., 1965, MIN MAG, V113, P114
  • [6] QUARM TAA, 1980, T I MIN METALL, V1, pC139
  • [7] THE REDUCTION OF ZINC FROM SLAG BY AN IRON-CARBON MELT
    RANKIN, WJ
    WRIGHT, S
    [J]. METALLURGICAL TRANSACTIONS B-PROCESS METALLURGY, 1990, 21 (05): : 885 - 897
  • [8] RICHARDSON GG, 1985, METALL T B, V1613, P513
  • [9] Schoukens A.F.S., 1996, EL FURN C P, P341
  • [10] SCHOUKENS AFS, 1995, P 3 INT S REC MET EN, P857
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