第 40 卷第 1 期Vol. 40 No. 1
2010 年 2 月Feb 2010

所属栏目:表面活性剂

Gemini型阳离子表面活性剂的合成及其对高岭石矿物的浮选性能
钟 宏,黄志强,王超男,沈祥会,帅 丽,刘广义,夏柳荫 (中南大学 化学化工学院 ,湖南 长沙 410083)
摘 要:制备了3种含有十二碳链的Gemini型阳离子表面活性剂(分别简写为12-2-12、12-4-12和12-6-12)。通过元素分析、红外光谱和质谱等对合成产物进行了表征。研究了3种合成的Gemini阳离子捕收剂对高岭石的浮选行为,并比较了新型捕收剂与传统捕收剂对高岭石浮选回收的差异。在相同实验条件下,Gemini型新药剂对高岭石的捕收能力大于传统药剂,它具有浮选效率高、受pH影响小等特点,是一种高效环保的新型阳离子表面活性剂。
关键词:阳离子表面活性剂;浮选;高岭石
中图分类号:TD923,TD952  文献标识码:A  文章编号:1009-9212(2010)01-0042-04
Synthesis of Gemini Cationic Surfactants and Their Applications in Kaolinite Mineral Flotation
ZHONG Hong,HUANG Zhi-qiang,WANG Chao-nan,SHEN Xiang-hui,SHUAI Li,LIU Guang-yi,XIA Liu-yin (School of Chemistry and Chemical Engineering,Central South University,Changsha 410083,China)
Abstract:Three Gemini surfactants(i.e. 12-2-12,12-4-12 and 12-6-12),with 12 carbon chains and bis-quaternary ammonium salt were synthesized. Chemical analysis,FTIR and HPLC-MS were employed for confirming the synthesized products. Moreover,flotation effects of the three new collectors were tested with kaolinite. Results showed that the flotability of kaolinite mineral with Gemini surfactants as the collector was far better than that with the traditional cationic surfactants. As a result,the novel collectors were proved to be highly effective,pH independent and environmentally benigh.
Key words:cationic surfactant;flotation;kaolinite mineral
基金项目:国家自然科学基金资助项目(50874118),国家973资助项目(2005CB623701),国家大学生创新性实验计划资助项目(081053315)。
作者简介:钟宏,教授,博士生导师,研究方向:资源化学工程。(E-mail:zhongh@mail.csu.edu.cn)
收稿日期:2009-10-22