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Modern Mining ›› 2023, Vol. 39 ›› Issue (03): 168-170.

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Study on Low Alkalinity Copper and Sulfur Separation in Mirador Copper Mine

LI Shinan YU Guanghui DAI Xianren LI Dong   

  1. China Railway Construction Tongguan Investment Co.,Ltd.
  • Online:2023-03-25 Published:2023-05-05

Abstract: In order to solve the technical problem of high pH value of tailings drainage in Mirador Copper Mine,based on the study of process mineralogy,ML-1 and lime were used as combined inhibitors for copper and sulfur separation. The results show that under the conditions of pH=11.0,when the dosage of ML-1 is 200 g/t,the separation of copper and sulfur is realized.The copper concentrate obtained in the closed-circuit test contains 26.52% copper and the copper recovery rate is 89.01%.The closed-circuit test results provide a technical basis for the separation of copper and sulfur with low alkalinity in Mirador Copper Mine.

Key words: copper sulfide ore, copper and sulfur separation, low alkalinity, inhibitor