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| Study on Hydrometallurgical Process for Complex Molybdenum Concentrate |
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Received:March 18, 2013
Revised:March 22, 2013
Accepted:March 25, 2013
Published Online:June 19, 2013
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| DOI：10.3969/j.issn.1007-7545.2013.07.008 |
| KeyWord:complex molybdenum concentrate; hydrometallurgy; oxygen pressure leaching; rhenium; solvent extraction |
| Author | Institution |
| Li He |
北京矿冶研究总院 |
| Wang Haibei |
北京矿冶研究总院 |
| Wang Yufang |
北京矿冶研究总院 |
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| Abstract: |
| Rhenium-bearing complex molybdenum concentrate was oxygen pressure leached and solvent extracted. The effects of reaction time, oxygen partial pressure, ball-milling time and ratio of liquid to solid on molybdenum conversion and dissolution were investigated. The results show that molybdenum conversion rate is above 98% and molybdenum dissolution rate is about 20% under the conditions including temperature of 230 ℃, reaction time of 2.5 h, oxygen partial pressure of 600 kPa, and ratio of liquid to solid of 6. Molybdenum and rhenium are solvent extracted from pressure leaching solution. The extraction and stripping ratio of rhenium are over 97% and 99% respectively, and the extraction and stripping ratio of molybdenum are over 99% and 97%. |
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