无机盐工业
主管:中海油天津化工研究设计院有限公司
主办:中海油天津化工研究设计院有限公司
   中海油炼油化工科学研究院(北京)有限公司
   中国化工学会无机酸碱盐专业委员会
ISSN 1006-4990 CN 12-1069/TQ
研究与开发

适用于镁锂分离纳滤膜的筛选

  • 成琪 ,
  • 孟永涛 ,
  • 毕秋艳 ,
  • 马丽 ,
  • 关云山
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  • 1.青海大学化工学院,青海西宁 810016
    2.青海省化工设计研究院有限公司
成琪(1993— ),男,硕士研究生, 研究方向为纳滤膜分离技术。

收稿日期: 2019-10-20

  网络出版日期: 2020-04-22

基金资助

青海省应用基础研究项目(2018-ZJ-916)

Screening of nanofiltration membrane for separation of magnesium and lithium

  • Qi Cheng ,
  • Yongtao Meng ,
  • Qiuyan Bi ,
  • Li Ma ,
  • Yunshan Guan
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  • 1.School of Chemical Engineering,Qinghai University,Xining 810016,China
    2.Qinghai Province Chemical Design and Research Institute Co.,Ltd.

Received date: 2019-10-20

  Online published: 2020-04-22

摘要

纳滤膜广泛应用于各分离领域,市售纳滤膜种类繁多,分离性能差异很大。对6种市售的纳滤膜(NT102、NT103、NT201、NF90、NF270、XN-45)进行镁锂分离实验,通过改变原料液稀释倍数、镁锂比、温度、pH及操作压力等条件,测得在不同条件下6种纳滤膜对镁锂的分离性能。结果表明:6种纳滤膜对镁锂分离性能具有明显差异,NT201和NT103最好,NF270和XN-45次之,NF90和NT102最差,可见NT201、NT103纳滤膜对镁锂分离性能最为优异。

关键词: 镁锂分离; 纳滤膜; 筛选

本文引用格式

成琪 , 孟永涛 , 毕秋艳 , 马丽 , 关云山 . 适用于镁锂分离纳滤膜的筛选[J]. 无机盐工业, 2020 , 52(4) : 42 -48 . DOI: 10.11962/1006-4990.2019-0270

Abstract

Nanofiltration membranes are widely used in various separation fields.There are many kinds of nanofiltration mem-branes on sale,and their separation performance varies greatly.Magnesium-lithium separation experiments were carried out on six kinds of nanofiltration membranes sold in the market:NT102,NT103,NT201,NF90,NF270 and XN-45.The separa-tion performance of the six kinds of nanofiltration membranes for magnesium-lithium was measured under different operating conditions by changing the dilution ratio,the ratio of magnesium to lithium,the temperature and the pH of raw liquid,and the operating pressure.Results showed that there were obvious differences of separation performance:NT201≈NT103>NF270≈XN-4>NF90≈NT102.NT201 and NT103 nanofiltration membranes showed the best separation performance for magnesium and lithium.

参考文献

[1] Jaskula B W . Mineral commodity summaries:Lithium[R].U.S.Geo-logical Survey, 2014.
[2] 杨晓婵 . 碳酸锂需求增长价格上扬[J].现代材料动态, 2013(1):10.
[3] 邢佳韵, 彭浩, 张燕飞 , 等. 世界锂资源供需形势展望[J]. 资源科学, 2015,37(5):988-997.
[4] 宋彭生, 项仁杰 . 盐湖锂资源开发利用及对中国锂产业发展的建议[J]. 矿床地质, 2014,33(5):977-992.
[5] Bowen W R, Mukhtar H . Characterisation and prediction of separa-tion performance of nanofiltration membranes[J]. Journal of Mem-brane Science, 1996,112(2):263-274.
[6] 王晓琳, 涂丛慧, 方彦彦 , 等. 纳滤膜孔结构、荷电性质、分离机理及动电性质研究进展[J]. 膜科学与技术, 2011,31(3):127-134.
[7] Sun S Y, Cai L J, Nie X Y , et al. Separation of magnesium and lithi-um from brine using a Desal nanofiltration membrane[J].Journal of Water Process Engineering, 2015(7):210-217.
[8] Li W, Shi C, Zhou A Y , et al. A positively charged composite nano-filtration membrane modified by EDTA for LiCl/MgCl2 separation[J]. Separation and Purification Technology, 2017,186:233-242.
[9] 邢红, 王肖虎, 毛新宇 . 膜法盐湖卤水提锂工艺研究[J]. 盐业与化工, 2016,45(1):24-26.
[10] 方建慧 . 纳滤膜在海水淡化中的应用研究[J]. 膜科学与技术, 2006,26(1):50-54.
[11] Bargeman G, Vollenbroek J M, Straatsma J , et al. Nanofiltration of multi-component feeds.Interactions between neutral and charged components and their effect on retention[J]. Journal of Membrane Science, 2005,247(1):11-20.
[12] 温现明 . 荷电膜在盐湖卤水中的传递性质研究[D]. 西宁:中国科学院研究生院(青海盐湖研究所), 2006.
[13] Hoffer E, Kedem O . Hyperfiltration in charged membranes:the fixed charge model[J]. Desalination, 1967,2(1):25-39.
[14] Simons R, Kedem O . Hyperfiltration in porous fixed charge mem-branes[J]. Desalination, 1973,13(1):1-16.
[15] 朱安娜, 祝万鹏, 张玉春 . 纳滤过程的污染问题及纳滤膜性能的影响因素[J]. 膜科学与技术, 2003,23(1):43-49.
[16] Sun Y L, Sun M H, Cheng W D , et al. The examination of water po-tentials by simulating viscosity[J]. Computational Materials Sci-ence, 2007,38(4):737-740.
[17] Mohammad A W, Teow Y H, Ang W L , et al. Nanofiltration mem-branes review:Recent advances and future prospects[J]. Desalina-tion, 2015,356:226-254.
[18] Manttari M, Pihlajamaki A, Nystrom M . Effect of pH on hydrophili-city and charge and their effect on the filtration efficiency of NF membranes at different pH[J]. Journal of Membrane Science, 2006,280:311-320.
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