Comprehensive Recovery of Gold, Silver and Tellurium from Tellurium-bearing Gold Ore
YANG Wei1,2, WANG Gang1,2, CAO Huan1,2, WANG Qian1,2
1.School of Resources Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, Shaanxi, China;
2.Key Laboratory of Gold and Resource of Shaanxi Province, Xi'an 710055, Shaanxi, China
Abstract：Single factor test of Nielsen gravity separation(GS) and flotation test of GS tailings were conducted to beneficiate a tellurium-bearing gold ore from Henan Province. The GS concentrate was obtained under the optimized conditions including a grinding fineness of -0.074 mm 60%, feed concentration of 25%, a relative centrifugal force of 50g and a feed speed of 900 g/min. Then, the GS tailings at a grinding size of -0.074 mm 70% was treated with a flotation process consisting of one stage of roughing and one stage of scavenging, with 120 g/t isoamyl xanthate as the collector and a pulp pH value at 8. The combined concentrate from GS and flotation assayed 32.88 g/t Au, 39.94 g/t Ag and 94.35 g/t Te with recoveries of 89.97% Au, 86.48% Ag and 81.29% Te. It is shown that this approach can efficiently reclaim gold, silver and tellurium resources.
杨玮, 王刚, 曹欢, 王倩. 从含碲金矿中综合回收金、银、碲的试验研究[J]. 矿冶工程, 2019, 39(4): 39-4.
YANG Wei, WANG Gang, CAO Huan, WANG Qian. Comprehensive Recovery of Gold, Silver and Tellurium from Tellurium-bearing Gold Ore. Mining and Metallurgical Engineering, 2019, 39(4): 39-4.
2019, Vol. 39 
