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| The flotation separation of scheelite with the Fe-BHA as the collector |
| Received:May 14, 2020 Revised:May 20, 2020 |
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| DOI： |
| KeyWord:Fe-BHA； Scheelite；Flotation |
| Author | Institution |
| Zhaochen |
BGRIMM Technology Group |
| Sun Chuanyao |
BGRIMM Technology Group |
| Yin Wanzhong |
Northeastern University |
| Wang Zhongming |
BGRIMM Technology Group |
| Xiao Qiaobin |
BGRIMM Technology Group |
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| Abstract: |
| A metal ion chelate, Fe-BHA, was synthesized by mixing FeCl3 with Benzohydroxamic acid (BHA) in a certain proportion. When the Fe-BHA was used to separate the scheelite-calcite artificially mixed simples, the best recovery of scheelite was 68.00% and the separation index of scheelite was 2.83, at pH7.7, which meant scheelite could be effectively separated from calcite at a quite high recovery in the concentrate; And when using the Fe-BHA in the scheelite-fluorite artificially mixed simples separation, fluorite could be separated from scheelite with the fluorite recovery of 78.20% and the fluorite separation index of 3.51, at pH11.0. The WO3 recovery of 63.50% and the WO3 grade of 1.56% in the concentrate could be got when using the Fe-BHA in the roughing tests of Xianglushan scheelite, which were much higher than those of using the BHA only. The presence of the chemisorption of the Fe-BHA on the surface of scheelite was verified by the Fourier Transform infrared spectroscopy (FTIR) analyses. |
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