黄可龙
,
舒万银
,
丁敦煌
,
刘国根
,
董萍
金属学报
通过固态萃合物2-乙基己基膦酸单(2-乙基己基)酯(HEH(EH)P,HA)-Mn的制备,对单烷基膦酸酯萃取二价Mn离子的萃合物组成及萃取机理进行了研究。结果表明:萃合物为不含水分子,组成为MnA_2,属高旋弱场配合物;认为萃合物为四面体结构。
关键词:
萃取
,
mono(2-ethylhexyl)-2-ethylhexyl phosphate
,
Mn
,
extracted complex
HUANG Kelong
,
SHU Wanyin
,
DING Dunhuang
,
LIU Guogen
,
DONG Ping
,
Central South University of Technology
,
Changsha
,
China HUANG Kelong
,
Lecturer
,
Department of Chemistry
,
Central South University of Technology
,
Changsha 410083
,
China
金属学报(英文版)
In order to clarify the mechanism and the complex formed in the extraction of divalent Mn by alkylphosphonic acid monoester, the solid complex has been prepared by mono (2-ethylhexyl)-2-ethylhexyl phosphate, HEH(EH)P, HA with divalent Mn. The elemental analysis, magnetic susceptibility and thermogravimetry have been determined for the solid complex of HEH(EH)P-Mn(II) and the infrared spectrum has been carried out in comparison to the extractant HEH(EH)P. The extracted compound has also been studied by electronic and electron spin resonance spectroscopy in octane solvent and solid state at room temperature. On the basis of the measurements, it is concluded that the structure of the solid polymeric species MnA_2 is in a tetrahedral arrangement.
关键词:
solvent extraction mono (2-ethylhexyl)-2-ethylhexyl phosphate
,
null
,
null
