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

Journal Publication ResearchOnline@JCU
Liu, Xiaoliang;Li, Qian;Zhang, Yan;Jiang, Tao;Yang, Yongbin;Xu, Bin;He, Yinghe
Yinghe He
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

Metallurgical and Materials Transactions B

Volume

50

ISBN/ISSN

1543-1916

Edition

N/A

Issue

4

Pages Count

9

Location

N/A

Publisher

Minerals Metals Materials Soc

Publisher Url

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Publisher Location

N/A

Publish Date

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Url

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Date

N/A

EISSN

N/A

DOI

10.1007/s11663-019-01591-3