用磁处理油酸钠溶液浮选钛铁矿及增效机理研究

doi:10.12068/j.issn.1005-3026.2020.08.021

东北大学学报:自然科学版 ›› 2020, Vol. 41 ›› Issue (8): 1195-1200.DOI: 10.12068/j.issn.1005-3026.2020.08.021

用磁处理油酸钠溶液浮选钛铁矿及增效机理研究

袁致涛，许元凯，孟庆有，赵轩

(东北大学资源与土木工程学院，辽宁沈阳110819)

收稿日期:2019-10-25 修回日期:2019-10-25 出版日期:2020-08-15 发布日期:2020-08-28
通讯作者: 袁致涛
作者简介:袁致涛(1971-)，男，辽宁沈阳人，东北大学教授.
基金资助:
国家自然科学基金资助项目(51704058)；中央高校基本科研业务费专项资金资助项目(N2001022).

Mechanism of Enhancing Separation Performance of Ilmenite by Magnetic Treatment of Sodium Oleate Solution

YUAN Zhi-tao， XU Yuan-kai， MENG Qing-you， ZHAO Xuan

School of Resources & Civil Engineering， Northeastern University， Shenyang 110819， China.

Received:2019-10-25 Revised:2019-10-25 Online:2020-08-15 Published:2020-08-28
Contact: XU Yuan-kai
About author:-
Supported by:
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摘要/Abstract

摘要： 研究了磁处理油酸钠溶液对钛铁矿和钛辉石浮选的影响.研究发现磁处理油酸钠溶液使钛辉石回收率由75.0%降至60.6%，钛铁矿回收率由75.2%降至69.3%；磁处理后的油酸钠溶液中钛铁矿和钛辉石的Zeta电位均正移，且钛辉石正移幅度较大，说明磁处理后油酸钠对钛铁矿的选择性增加.通过研究磁处理后油酸钠溶液的电导率、表面张力和光谱性质的变化揭示磁处理影响浮选的机理.磁处理后油酸钠溶液的电导率和表面张力增加，溶液中氢键作用减弱，促进了油酸根离子的释放，数量增多且得以释放的油酸根离子选择性吸附在钛铁矿表面，使钛铁矿和钛辉石之间的可浮性差异扩大.

关键词: 磁处理, 油酸钠溶液, 钛铁矿浮选, 可浮性差异, 机理研究

Abstract: The effect of magnetic treatment of sodium oleate solution on the flotation of ilmenite from titanaugite was studied. It is found that after magnetic treatment of sodium oleate， the recovery of titanaugite decreases from 75.0% to 60.6%， and the recovery of ilmenite decreases from 75.2% to 69.3%. The zeta potential of titanaugite shifts more positively than that of ilmenite. It is suggested that the selectivity of sodium oleate to ilmenite increases after magnetic treatment. The effects of magnetic treatment of sodium oleate on its electrical conductivity， surface tension and spectral properties are researched， and the mechanism of magnetic treatment is revealed. After magnetic treatment， the electrical conductivity and surface tension increase and the hydrogen bonds in the solution are weakened. Consequently， the oleate ions are released more， and increased and released oleate ions are selectively adsorbed on the surface of ilmenite. Hence， the floatability difference between ilmenite and titanaugite is enlarged.

Key words: magnetic treatment, sodium oleate solution, ilmenite flotation, floatability difference, mechanism study

中图分类号:

TD923

袁致涛，许元凯，孟庆有，赵轩. 用磁处理油酸钠溶液浮选钛铁矿及增效机理研究[J]. 东北大学学报:自然科学版, 2020, 41(8): 1195-1200.

YUAN Zhi-tao， XU Yuan-kai， MENG Qing-you， ZHAO Xuan. Mechanism of Enhancing Separation Performance of Ilmenite by Magnetic Treatment of Sodium Oleate Solution[J]. Journal of Northeastern University Natural Science, 2020, 41(8): 1195-1200.

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用磁处理油酸钠溶液浮选钛铁矿及增效机理研究

Mechanism of Enhancing Separation Performance of Ilmenite by Magnetic Treatment of Sodium Oleate Solution

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