Arsenic removal from high arsenic bearing gold sulphide concentrate

Authors: Yaozhong, Lan; Smith, Rose

Source: Mineral Processing and Extractive Metallurgy, Volume 113, Number 3, 2004 , pp. 189-191(3)

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Abstract:

A method is described for the removal of high arsenic levels from a gold concentrate involving a weakly reducing atmosphere in a rotary pipe furnace. The results showed that 95% of the arsenic in the gold mineral could be removed if roasted for 40 min at a temperature of 650–700°C, with the resulting roasted materials containing less than 1% As. The concentrate also contained a high concentration of S (~20 wt%) and, under these operating conditions, over 25% of the S was also removed.

Keywords: GOLD CONCENTRATE; ARSENIC REMOVAL

Document Type: Miscellaneous

DOI: http://dx.doi.org/10.1179/037195504225006560

Publication date: 2004-12-01

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Australasian Institute of Mining and Metallurgy

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