Informatics Publishing Limited

Dong Won Lee ¹, Jung-Yeul Yun ², Da-Hee Park ², Jei-Pil Wang ³

Affiliations
1 Materials Commercialization Center, Korea Institute of Materials Science, Changwon 642-831, KR
2 Powder Technology Research Group, Korea Institute of Materials Science, Changwon 642-831, KR
3 Department of Metallurgical Engineering, Pukyong National University, Busan 608-739, KR

Abstract

To remove the arsenic from gold concentrate using a thermal decomposition method, a test was conducted while changing the reaction time at 700°C. Additionally, the volatile arsenic from the gold concentrate was recovered using a bag-filter. The arsenic content in the concentrate was rapidly reduced from 12.62wt.% to 1.40wt.% after 1-hour burning and to below 1wt.% after 2 hours, indicating approximate 95% removal rate.

Keywords

Arsenic, Concentrate, Decomposition, Recovery.

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