• 左
  • 右

烷基膦酸单烷基酯萃取钪的机理研究

烷基膦酸单烷基酯萃取钪的机理研究[J]. 核化学与放射化学, 1992, 14(2): 79-79.
引用本文: 烷基膦酸单烷基酯萃取钪的机理研究[J]. 核化学与放射化学, 1992, 14(2): 79-79.
STUDY ON EXTRACTION MECHANISM OF SCANDIUM (III) WITH ALKYLPHOSPHONIC ACID MONOALKYL ESTER[J]. Journal of Nuclear and Radiochemistry, 1992, 14(2): 79-79.
Citation: STUDY ON EXTRACTION MECHANISM OF SCANDIUM (III) WITH ALKYLPHOSPHONIC ACID MONOALKYL ESTER[J]. Journal of Nuclear and Radiochemistry, 1992, 14(2): 79-79.

烷基膦酸单烷基酯萃取钪的机理研究

STUDY ON EXTRACTION MECHANISM OF SCANDIUM (III) WITH ALKYLPHOSPHONIC ACID MONOALKYL ESTER

  • 摘要: 研究了仲辛基膦酸单异辛基酯(PT-19)、异丙基膦酸单(1-己基-4-乙基)辛基酯(PT-2)和2-乙基己基膦酸单(2-乙基己基)酯(P_(507))等烷基膦酸单烷基酯的正庚烷溶液从盐酸介质中萃取钪的机理。讨论了平衡水相酸度、萃取剂浓度、温度对萃取平衡的影响,计算了反应的浓度平衡常数和热力学函数,考察了萃合物的IR与NMR谱。
    Abstract: The extraction mechanism of Sc(III) from hydrochloric acid solutions with s -octylphosphonic acid mono-iso-octyl ester(PT-19), iso-propylphosphonic acid mono-(1-hexyl-4-ethyl )octy 1 ester(PT-2) and 2-ethylhexylphosphonic acid mono-2-ethylhexyl ester (P507) in heptane is investigated. The extraction reaction of Sc(III)can be expressed respectively as follows:The equilibrium constants and thermodynamic functions of extraction reactions are calculated. The IR and NMR spectra of the extraction complexes of Sc(III)are discussed as well.
  • [1] 柯家俊.稀有金属,1987,11(5) :372.
    [2] 王树楷.有有色属.1978,5:63.
    [3] Melson G A et al. Proe Rare Earth Research Conf, 12th. 1976:877.
    [4] 陈云锦.稀有金属,1982,6(5) :12.
    [5] 黎心懿,杨丽华.分析实验室.1986,5(7) :29.
    [6] Navratil O, Vykoupil J. Collect Czech Chcm Commun, 1977,42(7) : 2126.
    [7] Li Deqian et al. Proeeedings ISEC'80. Liege Belgium, 1980:80-202.
    [8] Navr?til O. Collect Czech Chem Commun, 1977,42(9) :2778.
计量
  • 文章访问数:  1651
  • HTML全文浏览量:  0
  • PDF下载量:  1237
  • 被引次数: 0
出版历程
  • 收稿日期:  1991-01-15
  • 刊出日期:  1992-05-19

目录

    /

    返回文章
    返回