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DNNSA反胶团溶液净化磷酸中镁的研究
引用本文:徐碧,刘代俊,余静,曹艳,梁如刚.DNNSA反胶团溶液净化磷酸中镁的研究[J].化学研究与应用,2009,21(4).
作者姓名:徐碧  刘代俊  余静  曹艳  梁如刚
作者单位:1. 四川大学化学工程学院,四川,成都,610065
2. 成都南风(集团)股份有限公司,四川,成都,610300
摘    要:本文研究了二壬基萘磺酸(DNNSA)形成的微乳萃取磷酸中镁离子的工艺条件.分别考察了稀释剂、萃取时间、萃取剂浓度、温度、磷酸浓度对磷酸中镁离子萃取的影响.结果表明,稀释剂极性越低越有利于萃取,萃取平衡时间为40 min,萃取剂浓度增加有利于萃取,升高温度对萃取有利,磷酸浓度增加萃取率下降.红外光谱分析证实,DNNSA反胶团萃取磷酸中镁离子为阳离子交换机理.

关 键 词:反胶团  微乳萃取  磷酸  二壬基萘磺酸(DNNSA)

Study of magnesium ion extraction from phosphoric acid by DNNSA reverse micelle
XU Bi,LIU Dai-jun,YU Jing,CAO Yan,LIANG Ru-gang.Study of magnesium ion extraction from phosphoric acid by DNNSA reverse micelle[J].Chemical Research and Application,2009,21(4).
Authors:XU Bi  LIU Dai-jun  YU Jing  CAO Yan  LIANG Ru-gang
Institution:1.School of Chemical Engineering;Sichuan University;Chengdu 610065;China2.Chengdu Nan Feng Limited Company;Chengdu 610300;China
Abstract:The conditions of magnesium ion purification process from phosphoric acid by micro-emulsion extraction with Dinonylnaphthalene sulfonic acid(DNNSA) were studied.The influences of diluent,extraction time,concentration of DNNSA,temperature and concentration of phosphoric acid(PA) on the micro-emulsion extraction process were thus investigated.The results show that it is benefit to the extraction while the polarity of diluent is lower.The suitable extraction time is 40min.Increasing DNNSA concentration is bene...
Keywords:Mg(II)
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