Experimental Research on a Cyanidation of Gold Ore Containing Arsenic

Abstract:

The main metal minerals are magnetic pyrite arsenopyrite pyrites, galenite sphalerite,etc.The main gangue minerals are quarts,sericite,chlorite,carbonate,etc.Nature gold,electrum,bullion and nature silver are main gold silver minerals. The useful element is gold and silver and the impurity is arsenic. The experimental results of cyanide leaching crude and flotation concentrate show that the index of leaching rate of gold and silver being 93.90% and 81.38% are got on the condition of grinding fineness being 95.3%-0.074mm，pulp thickness being 33%，dosage if CaO being 2.5kg/t（pH≈11），dosage of NaCN being 3.0kg/t,leaching time being 24h by leaching crude of gold and silver grade being 0.82g/t、4.78g/t.

• Periodical: Advanced Materials Research (Volume 826)
• Pages: 53-56
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.826.53
• Online since: November 2013
• Authors: Meng Zhang*, Shu Juan Dai, Lian Tao Yu, Jia Hong Han, Guo Zhen Liu
• Keywords: Dosage of NaCN, Gold-Silver Minerals, Leaching Rate, Leaching Time

References

[1] Comprehensive utilization of mineral resources manual editing committee. Comprehensive utilization of mineral resources manual [M]. Beijng: Science Press, (2000).

[2] Dongqin Zhou, Shujuan Dai, Hongwei Li, etc Experimental Study on A Prhnary Gold Ore of Xinjiang [J]. Non-ferrous Mining and Metallurgy, Vol. 25 (2009), pp.26-28.

[3] Dezhou Wei, Separation of solid material [M]. Beijing, Metallurgical Industry Press, 2009. 10.

[4] Jianguang Zhu. Flotation reagent [M]. Beijing, Metallurgical Industry Press, 1993, 4.

[5] Weibai Hu. Flotation [M]. Beijing, Metallurgical Industry Press, 1989, 10.