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| Experimental study on high efficiency recovery of Bolivia ThayaMontana copper-sulfur-gold-silver polymetallic ore |
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Received:June 06, 2020
Revised:June 11, 2020
Accepted:July 16, 2020
Published Online:February 08, 2021
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| DOI： |
| KeyWord:Copper sulfide ore; flotation; inhibition; Regrinding |
| Author | Institution |
| ZHANG Hao |
Faculty of Land Resource Engineering,Kunming University of Science and Technology |
| YE Guohua. |
Faculty of Land Resource Engineering,Kunming University of Science and Technology;State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization |
| CHEN Ziyang |
State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization |
| XIE Yu |
Faculty of Land Resource Engineering,Kunming University of Science and Technology |
| ZUO Qi |
State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization |
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| Abstract: |
| The Cu grade of the raw ore is 2.52%, the s content is 27.59%, and the sulfide content is close to 60%. It is very difficult to separate copper and sulfur; the content of associated Au and Ag is very high, with great value, reaching 7.8g/t and 585.8g/t respectively, which should be fully recovered. In the process, the traditional preferential flotation is abandoned and the mixed flotation scheme is adopted; on the basis of rough grinding, the coarse concentrate is reground; in the reagent system, the new inhibitor sty is used, and a small amount of sodium sulfide and active carbon are added for chemical removal. Under the optimum conditions, two kinds of concentrate products, copper and sulfur, were obtained. The grade of copper concentrate is 21.27%, the recovery rate is as high as 92.43%, the silver content of copper concentrate is as high as 4115.8g/t, the gold content is as high as 34.9g/t, the grade of sulfur concentrate is 45%, the gold content is 7.5g/t, the silver content is 153.2g/t, the copper, sulfur, gold and silver are all recovered efficiently, especially the separation effect of copper and sulfur is very good. This study provides a good solution for the efficient recovery of the polymetallic ore. the grade of sulfur concentrate is 45%, the gold content is 7.5g/t, the silver content is 153.2g/t, and the copper, sulfur, gold and silver are all recovered efficiently, especially the separation effect of copper and sulfur is very good. This study provides a solution for the efficient recovery of the polymetallic ore. |
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