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Gold Science and Technology ›› 2014, Vol. 22 ›› Issue (5): 74-78.doi: 10.11872/j.issn.1005-2518.2014.05.074

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Experimental Study on Gold Recovery from Low Gold High-Sulfur Copper Ore

WU Caibin，LIU Yu，ZHOU Yichao，ZHOU Bin，YANG Hao，YAN Faming，ZOU Chunlin   

  1. Jiangxi Key Laboratory of Mining Engineering，Jiangxi University of Science and Technology，Ganzhou   341000，Jiangxi，China
  • Received:2014-06-17 Revised:2014-08-10 Online:2014-10-28 Published:2015-01-22

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Abstract:

The low-grade associated gold in copper ore is often overlooked to recover，due to its difficult to enrich to valuation grade.According to the low gold high-sulfur copper ore，which contains 1.84% of Cu，11.09% of S，and 0.12×10-6 of Au，P10 is taken as collector for copper and gold，sulfuric acid as activator and butylxanthate as collector for sulfur.A closed-circuit flotation test was conducted at a low alkalinity，which a copper concentrate are produced with content of 20.98% Cu with a recovery of 86.23% and 1.2×10-6 Au with a recovery of 74.80%， and sulfur concentrate of 48.9% S with a recovery of 74.47%.Therefore，a comprehensive and efficient recovery of copper，sulfur and gold can be realized.Low alkali separation technology of copper-sulfur，which greatly reduced the amount of activator，is conducive to comprehensive recovery of sulfur and lower processing costs.

Key words: high-sulfur copper ore, low-grade associated gold, P10 collector, copper-sulfur separation at low alkalinity

CLC Number: 

  • TF831

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