Behavior of arsenic and aurum leaching by roasting arsenic gold ore

Zhao Hui Zhang*, Bai Long Liu, Jian Tao Ju, Hong Zhou Ma, Fu Cai Zhao

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Aiming at the difficulties of aurum leaching from arsenic gold ore, the behavior of arsenic and aurum leaching by the roasting pretreatment of arsenic gold ore is discussed. The result indicates as the following: the rate of aurum extraction is only 14.16% to this kind of refractory gold ore by choosing normal method of aurum extraction. However, the rate of fixing arsenic is up to 95.77% and the aurum extraction rate is 78.45% through the pretreatment of fixing arsenic roasting under optimum roasting conditions like adding amount of CaCO3 by 3%, roasting temperature 650°C and roasting time 4 hours. The result is satisfactory.

Original languageEnglish
Title of host publicationFundamental of Chemical Engineering
Pages644-647
Number of pages4
DOIs
Publication statusPublished - 2011
Externally publishedYes
Event2011 International Conference on Chemical Engineering and Advanced Materials, CEAM 2011 - Changsha, China
Duration: 28 May 201130 May 2011

Publication series

NameAdvanced Materials Research
Volume233-235
ISSN (Print)1022-6680

Conference

Conference2011 International Conference on Chemical Engineering and Advanced Materials, CEAM 2011
Country/TerritoryChina
CityChangsha
Period28/05/1130/05/11

Keywords

  • Arsenic gold ore
  • Fixed arsenic
  • Fixing agent
  • Leaching
  • Roasting

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