TX-100对油酸钠体系下菱镁矿与白云石浮选分离的影响

doi:10.12068/j.issn.1005-3026.2021.02.012

东北大学学报（自然科学版） ›› 2021, Vol. 42 ›› Issue (2): 226-231.DOI: 10.12068/j.issn.1005-3026.2021.02.012

TX-100对油酸钠体系下菱镁矿与白云石浮选分离的影响

孙文瀚¹，刘文刚¹，杨婷²，代淑娟³

(1. 东北大学资源与土木工程学院，辽宁沈阳110819; 2. 中钢集团马鞍山矿山研究院，安徽马鞍山243000; 3. 辽宁科技大学矿业工程学院，辽宁鞍山114051)

收稿日期:2020-07-07 修回日期:2020-07-07 接受日期:2020-07-07 发布日期:2021-03-05
通讯作者: 孙文瀚
作者简介:孙文瀚(1994-)，男，辽宁沈阳人，东北大学博士研究生; 刘文刚(1981-)，男，山东潍坊人，东北大学教授，博士生导师.
基金资助:
国家自然科学基金资助项目(51874168); 辽宁省“兴辽英才计划”项目(XLYC1807089)；中央高校基本科研业务费专项资金资助项目(N180106004).

Effect of TX-100 on Flotation of Magnesite and Dolomite Using NaOL as Collector

SUN Wen-han¹， LIU Wen-gang¹， YANG Ting²， DAI Shu-juan³

1. School of Resources & Civil Engineering， Northeastern University， Shenyang 110819， China; 2. Sinosteel Maanshan Institute of Mining Research Co.， Ltd.， Maanshan 243000， China; 3. School of Mining Engineering， University of Science and Technology Liaoning， Anshan 114051， China.

Received:2020-07-07 Revised:2020-07-07 Accepted:2020-07-07 Published:2021-03-05
Contact: LIU-Wen gang
About author:-
Supported by:
-

摘要/Abstract

摘要： 菱镁矿与白云石具有相似的晶体结构、化学成分及溶解特性，导致浮选分离难度较大.本文通过浮选试验、表面张力测定、红外光谱测试及X射线光电子能谱测试，研究油酸钠体系下曲拉通X-100(TX-100)对菱镁矿与白云石浮选分离的影响.结果表明，TX-100具有强化油酸钠对菱镁矿与白云石浮选分离的效果，油酸钠以化学方式吸附于菱镁矿与白云石表面，在白云石表面可能与TX-100有竞争吸附.TX-100降低了油酸钠的表面张力，促进了油酸钠的溶解和分散，同时通过增溶作用提高了生成油酸钙沉淀所需的钙离子浓度，使得油酸钠在白云石表面的吸附减弱，对白云石有选择性的抑制作用.

关键词: 菱镁矿;白云石;TX-100;油酸钠;浮选;吸附机理

Abstract: Magnesite and dolomite are difficult to be separated by flotation because of their similar crystal structure， chemical composition， and dissolution characteristics. The effects of triton X-100(TX-100) on the flotation of magnesite and dolomite under sodium oleate system were studied by flotation tests， surface tension tests， FTIR tests and XPS tests. The results show that TX-100 can enhance the effect on the flotation separation of magnesite and dolomite by using NaOL. NaOL is chemically adsorbed on the surface of magnesite and dolomite， and may have competitive adsorption with TX-100 on the surface of dolomite. TX-100 reduces the surface tension of NaOL and promotes the dissolution and dispersion of NaOL. The concentration of Ca²⁺ needed to produce calcium oleate precipitation is increased by solubilization， which weakens the adsorption of sodium oleate on dolomite surface， thus selectively inhibiting the dolomite.

Key words: magnesite; dolomite; TX-100; NaOL; flotation; adsorption mechanism

中图分类号:

TD923.14

孙文瀚，刘文刚，杨婷，代淑娟. TX-100对油酸钠体系下菱镁矿与白云石浮选分离的影响[J]. 东北大学学报（自然科学版）, 2021, 42(2): 226-231.

SUN Wen-han， LIU Wen-gang， YANG Ting， DAI Shu-juan. Effect of TX-100 on Flotation of Magnesite and Dolomite Using NaOL as Collector[J]. Journal of Northeastern University(Natural Science), 2021, 42(2): 226-231.

参考文献

[1]赵正，白鸽，王登红，等.中国成菱镁矿区带与关键科学问题［J］.地质学报，2014，88(12):2326-2338.(Zhao Zheng，Bai Ge，Wang Deng-hong，et al.The metallogenic belts of Chinese magnesite deposits and key scientific issues［J］.Acta Geologica Sinica，2014，88(12):2326-2338.)
[2]Tang Y，Yin W Z， Kelebek S.Magnesite-dolomite separation using potassium cetyl phosphate as a novel flotation collector and related surface chemistry［J］.Applied Surface Science，2020，508:145191.
[3]Sun W H，Liu W G，Dai S J，et al.Effect of Tween 80 on flotation separation of magnesite and dolomite using NaOL as the collector ［J］.Journal of Molecular Liquids，2020，315:113712.
[4]Zhang H，Han C，Liu W G，et al.The chain length and isomeric effects of monohydric alcohols on the flotation of magnesite and dolomite by sodium oleate［J］.Journal of Molecular Liquids，2019，276:471-479.
[5]王纪镇，程雅芝，肖雨辰，等.油酸钠/TX-100组合药剂对白钨矿的捕收性能及机理研究［J］.有色金属(选矿部分)，2019(1):100-104.(Wang Ji-zhen，Cheng Ya-zhi，Xiao Yu-chen，et al.Collecting performance of mixed NaOL/TX-100 for scheelite flotation and its mechanism［J］.Nonferrous Metals(Mineral Processing Section)，2019(1):100-104.)
[6]冯其明，张晶，卢毅屏，等.Tween 80在一水硬铝石浮选中的作用［J］.中国有色金属学报，2010，20(11):2228-2232.(Feng Qi-ming，Zhang Jing，Lu Yi-ping，et al.Effect of Tween 80 on flotation of diaspore［J］.Chinese Journal of Nonferrous Metals，2010，20(11):2228-2232.)
[7]Liu W B，Liu W G，Dai S J，et al.Enhancing the purity of magnesite ore powder using an ethanolamine-based collector:insights from experiment and theory［J］.Journal of Molecular Liquids，2018，268:215-222.
[8]Duan H，Liu W G，Wang X Y，et al.Effect of secondary amino on the adsorption of N-Dodecylethylenediamine on quartz surface:a molecular dynamics study［J］.Powder Technology，2019，351:46-53.
[9]Dong L Y，Jiao F，Qin W Q，et al.Selective depressive effect of sodium fluorosilicate on calcite during scheelite flotation［J］.Minerals Engineering，2019，131:262-271.
[10]Guo S，Yang L，Dai B，et al.Wide-range infrared transparency of hydrated magnesium-carbon films with high mobility for enhanced conductivity［J］.Surface and Coatings Technology，2019，365:70-75.

TX-100对油酸钠体系下菱镁矿与白云石浮选分离的影响

Effect of TX-100 on Flotation of Magnesite and Dolomite Using NaOL as Collector

RichHTML

PDF (PC)

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 4

编辑推荐

Metrics

本文评价

[1]	刘文宝，刘文刚，张乃旭，李振. N，N-二(3-氯-2-羟丙基)十二胺对菱镁矿浮选脱硅性能的影响[J]. 东北大学学报:自然科学版, 2018, 39(8): 1192-1196.
[2]	刘文宝，刘文刚，王鑫阳，张尧. 烷基羟丙基胺作用下石英和赤铁矿的浮选行为[J]. 东北大学学报:自然科学版, 2017, 38(12): 1775-1779.
[3]	罗娜，魏德洲，李明阳，张彩娥. 白云石对菱镁矿浮选行为的影响[J]. 东北大学学报:自然科学版, 2017, 38(7): 1007-1011.
[4]	李明阳，魏德洲，崔宝玉，罗娜. 2，3-二巯基丁二酸对黄铜矿和辉钼矿浮选行为的影响[J]. 东北大学学报:自然科学版, 2015, 36(7): 1020-1024.