Simultaneous removal of S and As from a refractory gold ore in a single stage O-2-enriched roasting process
Journal Publication ResearchOnline@JCULiu, Xiaoliang;Li, Qian;Zhang, Yan;Jiang, Tao;Yang, Yongbin;Xu, Bin;He, Yinghe
Abstract
S and As are common impurities in refractory gold ores and must be removed before gold extraction. Thermodynamic analyses show that it is possible to simultaneously remove S and As by an O-2-enriched single-stage roasting, which is confirmed with experimental results from roasting of a gold refractory ore. The range of optimal O-2 requirement is narrow and varies with the S and As content in the ore. Both the extent of removal of S and As, and the subsequent recovery of gold achieved from the optimized single-stage roasting are comparable to those attained from two-stage roasting processes.
Journal
Metallurgical and Materials Transactions B
Publication Name
N/A
Volume
50
ISBN/ISSN
1543-1916
Edition
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Issue
4
Pages Count
9
Location
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Publisher
Minerals Metals Materials Soc
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Publisher Location
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Publish Date
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Url
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Date
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EISSN
N/A
DOI
10.1007/s11663-019-01591-3