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矿冶:2020,(4):-
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Fe-BHA用于白钨矿的浮选分离
赵晨1, 孙传尧1, 印万忠2, 王中明1, 肖巧斌1
(1.矿冶科技集团有限公司;2.东北大学)
The flotation separation of scheelite with the Fe-BHA as the collector
Zhaochen1, Sun Chuanyao1, Yin Wanzhong2, Wang Zhongming1, Xiao Qiaobin1
(1.BGRIMM Technology Group;2.Northeastern University)
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投稿时间:2020-05-14    修订日期:2020-05-20
中文摘要: 将FeCl3与苯甲羟肟酸按一定比例混合,形成一种金属离子螯合物Fe-BHA,用于白钨矿-方解石人工混合矿浮选分离试验,在pH=7.7时,取得最佳的白钨精矿回收率为68.00%,白钨矿分选指数为2.83,可实现白钨矿在较高精矿回收率的前提下与方解石的有效分离;而在白钨矿-萤石人工混合矿的浮选分离试验中,在pH=11.0时,取得的萤石精矿回收率为78.20%,分离指数为3.51,理论上可以实现白钨矿与萤石的分离。Fe-BHA用于香炉山白钨矿实际矿石的粗选验证试验,在适宜条件下,可获得产率为30.53%,精矿中WO3的品位为1.56%,精矿中WO3的回收率为63.50%的白钨精矿,相比同条件下单独使用苯甲羟肟酸的浮选结果较好。与Fe-BHA作用前后的白钨矿的红外光谱证明了Fe-BHA在白钨矿表面化学吸附的存在。
中文关键词: Fe-BHA  白钨矿  浮选
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.
keywords: Fe-BHA  Scheelite  Flotation
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赵晨,孙传尧,印万忠,王中明,肖巧斌.Fe-BHA用于白钨矿的浮选分离[J].矿冶,2020,(4):.

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