应用化学 ›› 2010, Vol. 27 ›› Issue (06): 742-744.DOI: 10.3724/SP.J.1095.2010.90449

• 研究简报 • 上一篇    

双子型阴离子表面活性剂的合成及浮选性能

姜小明1*,陈晓阁1,解田2   

  1. (1.贵州大学化学与化工学院 贵阳 550025;2.瓮福(集团)有限责任公司 贵阳)
  • 收稿日期:2009-07-09 修回日期:2009-09-29 出版日期:2010-06-10 发布日期:2010-06-10
  • 通讯作者: 姜小明,男,博士,副教授; E-mail:ming1840@yahoo.com.cn; 研究方向:表面活性剂的合成及应用姜小明
  • 基金资助:
    国家自然科学基金(20861003)贵州省科学技术基金(\[2007\]2012)瓮福(集团)有限责任公司博士后(61987)资助项目

Synthesis and Flotation Property of the Gemini Anionic Surfactants

JIANG Xiao-Ming1*, CHEN Xiao-Ge1, XIE Tian2   

  1. (1.College of Chemistry & Chemical Engineering,Guizhou University,Guiyang 550025;
    2.Wengfu(Group) Company Limited,Guiyang)
  • Received:2009-07-09 Revised:2009-09-29 Published:2010-06-10 Online:2010-06-10

摘要:

分别以辛酰氯、癸酰氯、十二酰氯为原料,经加成、酰化及皂化等反应合成了3种双子型阴离子表面活性剂。 产物结构经IR、1H NMR和13C NMR等波谱测试技术确定。 25 ℃时测定了表面活性参数,结果表明随分子中疏水链增长,临界胶束浓度及表面张力均降低。 目标化合物能一定程度增强油酸对胶磷矿中白云石的浮选能力。

关键词: 双子型, 表面活性剂, 合成, 浮选

Abstract:

Three kinds of gemini anionic surfactants were synthesized through addition reaction, acylation reaction and hydrolysis from starting materials of octanoyl chloride, decanoyl chloride and lauroyl chloride. The structures of the surfactants were identified by 1H NMR, 13C NMR and IR. The values of critical miscelle concentration(cmc) and surface stress(γcmc) measured at 25 ℃ decrease with the increase of hydrophobic chain length of the surfactants. The gemini anionic surfactant is able to enhance the collophanite floating capability of oleic acid.

Key words: gemini, surfactant, synthesis, flotation

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