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| Process mineralogical research copper-lead-zinc ores in Tibet |
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Received:March 04, 2019
Revised:April 09, 2019
Accepted:April 09, 2019
Published Online:December 24, 2019
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| DOI： |
| KeyWord:copper-lead-zinc mixed ore; process mineralogy; flotation; strong magnetic separation |
| Author | Institution |
| Zhang Qian |
Chinese Academy of Natural Resources Economics |
| Nie Wenlin |
Faculty of Land Resource Engineering Kunming University of Science and Technology |
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| Abstract: |
| With copper-lead-zinc ores in Tibet as the study object, by chemical analysis, phase analysis, optical microscope analysis to investigate chemical element composition, phase composition and distribution characteristics of mineral grain size. The results show that the mineral compositions of the ore are complex, the main valuable recovery elements are copper, lead and zinc, the grade of copper, lead and zinc is 0.67%, 1.27% and 0.99% respectively, Copper mainly exists in the form of copper sulfide, the oxidation rate of copper is 30.30%; lead and zinc exist mainly in the form of carbonate, the gangue minerals are mainly calcite, quartz, tremolite, garnet and so on; between minerals and minerals have complex association relationship and encapsulation relationship, the floatability of copper-lead and copper-zinc in ores is similar, which caused the poor index of copper-lead-znic. Based on the study of process mineralogy, suggests that the ore is suitable for the process flow of "mixed flotation—flotation tailings strong magnetic separation—mixed conecentrate reseparation" to improve the grade and recovery of useful metals. The study results provide technical support and scientific basis for the selection of technological process and rational development of ores. |
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