Simultaneous removal of S and As from a refractory gold ore in a single stage O-2-enriched roasting process

Liu, Xiaoliang, Li, Qian, Zhang, Yan, Jiang, Tao, Yang, Yongbin, Xu, Bin, and He, Yinghe (2019) Simultaneous removal of S and As from a refractory gold ore in a single stage O-2-enriched roasting process. Metallurgical and Materials Transactions B, 50 (4). pp. 1588-1596.

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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.

Item ID: 59978
Item Type: Article (Research - C1)
ISSN: 1543-1916
Funders: National Natural Science Foundation of China (NNSFC), Fundamental Research Funds for the Central South University 9CSU)
Projects and Grants: NNSFC Grant No. 51574284, NNSFC Grant No. 51504293, CSU No. 201706370222, CSU No. 201606370128
Date Deposited: 07 Aug 2019 07:32
FoR Codes: 09 ENGINEERING > 0914 Resources Engineering and Extractive Metallurgy > 091403 Hydrometallurgy @ 100%
SEO Codes: 84 MINERAL RESOURCES (excl. Energy Resources) > 8402 Primary Mining and Extraction Processes of Mineral Resources > 840205 Mining and Extraction of Precious (Noble) Metal Ores @ 100%
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