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Gold Science and Technology ›› 2018, Vol. 26 ›› Issue (1): 81-88.doi: 10.11872/j.issn.1005-2518.2018.01.081

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Experimental Study on the Separation of Gold-Copper Sulfide Ore by Using Pebble as Grinding Media

NI Shuainan 1，2，WU Caibin 1，2，YE Jingsheng 1，YANG Jie 1，YUAN Chengfang 1   

  1. 1.School of Resources and Environmental Engineering，Jiangxi University of Science and Technology，Ganzhou 341000，Jiangxi，China；2.Jiangxi Key Laboratory of Mining Engineering，Ganzhou    341000，Jiangxi，China
  • Received:2017-05-22 Revised:2017-08-17 Online:2018-02-28 Published:2018-05-19

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Abstract:

The pebble discharged from SAG mill has a grinding media characteristic of big hardness and high spherical degree.A flotation process research of copper and sulfur mixed flotation-coarse concentrate grinding-copper sulfur separation had been carried out by using stone and steel ball as mixing coarse grinding media and the whole stone as re-grinding media when the flotation feed is the coarse spiral classifier in copper-sulfur gold mine.Closed-circuit tests were carried out on the basis of the best condition test.The results show that the final copper concentrate with copper grade of 18.45%，gold grade of 16.68×10-6，copper recovery of 86.89%，and gold recovery of 55.78% was otained，which is higher than the actual production index.It is confirmed that the pebble used as grinding media has a good prospect in fine grinding of rough concentrate.

Key words: pebble from SAG, grinding media, copper and sulfur gold mine, copper and sulfur bulk flotation, copper and sulfur separation

CLC Number: 

  • TD953

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