二-(2-乙基己基)磷酸在不同稀释剂中对钙、钴(Ⅱ)的萃取

高等学校化学学报 ›› 1983, Vol. 4 ›› Issue (2): 152.

二-(2-乙基己基)磷酸在不同稀释剂中对钙、钴(Ⅱ)的萃取

付洵, 蒋德华, 沈静兰

山东大学化学系

收稿日期:1981-09-16 出版日期:1983-04-24 发布日期:1983-04-24

EXTRACTION OF CALCIUM AND COBALT (Ⅱ) FROM SULPHATE SOLUTION WITH HDEHP IN VARIOUS DILUENTS

Fu Xun, Jiang Dehua, Shen Jinglan

Department of Chemistry, Shandong University, Jinan

Received:1981-09-16 Online:1983-04-24 Published:1983-04-24

摘要/Abstract

摘要： 本文测定了25±1℃时二-(2-乙基己基)磷酸在不同稀释剂中从硫酸盐水溶液里对钙、钴(Ⅱ)的萃取,计算得到了萃取络合物中结合的自由萃取剂分子数和萃取平衡的表观常数,并讨论了溶剂对萃取的影响。

Abstract: The distribution of Ca, Co (Ⅱ) between aqueous sulphate solution and HDEHPin n-hexane, kerosene, cyclohexane, carbon tetrachloride, methyl isobutyl ketone, toluene, benzene and chloroform has been studied at 25±1℃ respectively. The composition of the extracted species and the extraction constants were calculated and tabulated for different diluents. The distribution ratios decrease in the following order of diluents. n-hexane>kerosene >cyclohexane > carbon tetrachloride > methyl isobutyl ketone >toluene> benzene>chloroform.The results were discussed with the Lewis acidity and the solubility parameter of the diluents respectively.

TrendMD:

付洵, 蒋德华, 沈静兰. 二-(2-乙基己基)磷酸在不同稀释剂中对钙、钴(Ⅱ)的萃取. 高等学校化学学报, 1983, 4(2): 152.

Fu Xun, Jiang Dehua, Shen Jinglan . EXTRACTION OF CALCIUM AND COBALT (Ⅱ) FROM SULPHATE SOLUTION WITH HDEHP IN VARIOUS DILUENTS. Chem. J. Chinese Universities, 1983, 4(2): 152.