摘要
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。
In order to clarify the mechanism and the complex formed in the ex-
traction 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 extra-
cted compound has also been studied by electronic and electron spin resonance spec-
troscopy 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.
出处
《金属学报》
SCIE
EI
CAS
CSCD
北大核心
1991年第4期B232-B236,共5页
Acta Metallurgica Sinica
关键词
乙基
萃取
己基膦酸单
有机磷酸酯
solvent extraction
mono(2-ethylhexyl)-2-ethylhexyl phosphate
Mn
extracted complex
