A New Process for Molybdenum-Tungsten Extraction from High Pressure Leaching Solution of Crude Molybdenum-Tungsten Oxide Concentrate AITranslate
Abstract AITranslate
A new process of molybdenum-tungsten extraction from high pressure leaching solution of crude molybdenum-tungsten oxide concentrate was studied,including the steps of solution pre-treatment, molyb- denum-tungsten precipitation, solid-liquid separation, product drying and so on. When the high pressure leaching solution contains 27.26 g/L Mo and 5.70 g/L WOa ,Mo and WOa precipitation rates are 99.94% and 85.08 %, respectively, under the conditions of pH value of 7-8, precipitation time of 1-1.5 h, reaction temperature of 80 ℃, and CaC12 dosage of 2. 15 times the theoretical value, and the calcium molybdate- tungstate product contains 36.08% Mo and 7.11% WO3 ,with impurity of 0. 012% P and 0. 004 5% As. The new process has simple flowsheet,good operability and high molybdenum-tungsten recovery.
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DOI：
Chinese Library Classification Number:TF841.2[冶金工程—有色金属冶金]
Citation Information:
A new process of molybdenum-tungsten extraction from high pressure leaching solution of crude molybdenum-tungsten oxide concentrate was studied,including the steps of solution pre-treatment, molyb- denum-tungsten precipitation, solid-liquid separation, product drying and so on. When the high pressure leaching solution contains 27.26 g/L Mo and 5.70 g/L WOa ,Mo and WOa precipitation rates are 99.94% and 85.08 %, respectively, under the conditions of pH value of 7-8, precipitation time of 1-1.5 h, reaction temperature of 80 ℃, and CaC12 dosage of 2. 15 times the theoretical value, and the calcium molybdate- tungstate product contains 36.08% Mo and 7.11% WO3 ,with impurity of 0. 012% P and 0. 004 5% As. The new process has simple flowsheet,good operability and high molybdenum-tungsten recovery.
quote
| GB/T 7714-2015 | [1] CAO Yao-hua, WANG Hong-jie, LIU Hong-zhao, et al. A New Process for Molybdenum-Tungsten Extraction from High Pressure Leaching Solution of Crude Molybdenum-Tungsten Oxide Concentrate[J]. Rare Metals and Cemented Carbides, 2013(1): 17-19. |
| MLA | [1] CAO Yao-hua, et al., "A New Process for Molybdenum-Tungsten Extraction from High Pressure Leaching Solution of Crude Molybdenum-Tungsten Oxide Concentrate." Rare Metals and Cemented Carbides, no. 1, 2013, pp. 17-19. |
| APA | [1] CAO Yao-hua, WANG Hong-jie, LIU Hong-zhao, & GAO Zhao-guo. (2013). A New Process for Molybdenum-Tungsten Extraction from High Pressure Leaching Solution of Crude Molybdenum-Tungsten Oxide Concentrate. Rare Metals and Cemented Carbides(1), 17-19. |
| IEEE | [1] CAO Yao-hua, WANG Hong-jie, LIU Hong-zhao, and GAO Zhao-guo, "A New Process for Molybdenum-Tungsten Extraction from High Pressure Leaching Solution of Crude Molybdenum-Tungsten Oxide Concentrate," Rare Metals and Cemented Carbides, no. 1, pp. 17-19, 2013. keywords: {crude molybdenum-tungsten oxide concentrate;high pressure leaching solution;molybdenum-tungsten precipitation;calcium molybdate-tungstate} |