P_（538）在不同稀释剂中萃取Ni（Ⅱ）的研究  

Study on the Extraction of Nickelous with P_(538) in Different Diluent

作　　者：葛战勤[1,2] 于秀芳[1,2] 

机构地区：[1]河北轻化工学院基础课部 [2]曲阜师范大学化学系

出　　处：《河北轻化工学院学报》1996年第1期19-24,50,共7页

摘　　要：研究了４０℃时用单烷基磷酸萃取剂Ｐ５３８从硫酸钠酸性溶液中萃取Ｎｉ（Ⅱ），提出其萃取机理如下：经计算，该萃取反应的萃取平衡常数为８７．５７。本文还讨论了４０℃时，Ｎｉ（Ⅱ）在各种稀释剂如煤油、苯、环己烷、正己烷、甲苯中的分配比Ｄ和溶解度参数δｄ之间的关系式为ｌｇＤ＝－０．２４７δｄ２＋４．０６２δｄ－１７．４１０。The extraction of nickelous from sodium sulphat solution with P538 at 40℃ is studied. The proposed extraction mechanism is as follows: . The apparent extraction equilibrium constant is calculated to be 87. 57.This paper also diseuases the relation between the elitribution ratio D and the solubility paramter δd of different diluents at 40℃, such as kerosene, benzene, cyclohexane, hexcane and toluene, that is as follows: 1gD= -0. 247δ+ 4. 062δd - 17. 410.

关 键 词：镍离子 稀释剂 溶解度参数 萃取剂 单烷基磷酸 

分 类 号：O614.813[理学—无机化学]