中华医学超声杂志

应用化学 ›› 1990, Vol. 0 ›› Issue (4): 1-5.

• 研究论文 •    下一篇

高位阻有机磷萃取剂的研究——Ⅰ.烃基膦酸单十六烷基酯的合成及其对钴(Ⅱ)、镍(Ⅱ)等金属离子的萃取性能

叶伟贞, 许庆仁, 孙桂云, 吴甫炳, 蒋亚东   

  1. 中国科学院上海有机化学研究所 上海 200032
  • 收稿日期:1989-08-14 修回日期:1990-02-16 出版日期:1990-08-10 发布日期:1990-08-10
  • 基金资助:
    中国科学院基金

STUDIES ON HIGHLY STERICALLY HINDERED ORGANOPHOSPHORUS EXTRACTANTSⅠ.SYNTHESIS OF MONOHEXADECYL HYDROCARBYLPHOSPHONATES AND THEIR EXTRACTION BEHAVIOURS ON Co(Ⅱ),Ni(Ⅱ)AND OTHER METAL IONS

Ye Weizhen, Xu Qingren, Sun Guiun, Wu Fubing, Jiang Yatong   

  1. Shanghai Institute of Organic Chemistry, Academia Sinica, Shanghai 200032
  • Received:1989-08-14 Revised:1990-02-16 Published:1990-08-10 Online:1990-08-10

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摘要： 合成了6个具有高位阻特征的烃基膦酸单十六烷基酯萃取剂,并考察了它们对Co(Ⅱ)、Ni(Ⅱ)、Cu(Ⅱ)、Fe(Ⅲ)和Ca的萃取性能。萃取剂分子中烃基结构的变化对各种金属离子的萃取能力有着不同程度的影响。空间位阻较大的异丙基和环己基化合物具有比2-乙基己基膦酸单2-乙基己基酯(P507)更高的Co-Ni分离能力。

关键词: 烃基膦酸单十六烷基酯, 镍(Ⅱ), 钴(Ⅱ), 萃取, 有机磷化合物

Abstract: Six monohexadecyl hydrocarbylphosphonate extractants with highly steric hindrance,R1 (R2O)P(O)OH, where R2 represents -CH(C6H13) C2H4CH(C2H5) C4H9 or -CHC6H13)CH2CH(CH3)C6H13, as well as R1represents CH3, C2H5, i-C3H7, cyclo-C6H11 and C6H5, respectively, were synthesized and their extraction behaviours on Co(Ⅱ), Ni(Ⅱ), Cu(Ⅱ), Fe(Ⅲ)and Ca were investigated. The structural variation of the hydrocarbyl groups in the extractant molecules has the different influences on the extractability of various metal ions.The compounds with isopropyl and cyclohexyl, having higher steric hindrance, possesshigher separation ability of Co and Ni, and they are a new class of extractants superior tomono-2-ethylhexyl 2-ethylhexyl phosphonate (P-507), which has already been employed inindustry.

Key words: monohexadecyl hydrocarbylphosphonate, NI(Ⅱ), Co(Ⅱ), extraction, organophosphorus compound

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