石油亚砜对硝酸的萃取  

STUDIES ON THE EXTRACTION OF NITRIC ACID BY PETROLEUM SULPHOXIDES

作　　者：毛家骏[1] 方敏[1] 傅磊[1] 张振民[2] 

机构地区：[1]复旦大学 [2]华南理工大学

出　　处：《复旦学报（自然科学版）》1992年第2期221-226,共6页Journal of Fudan University：Natural Science

基　　金：国家自然科学基金

摘　　要：建立了测定萃取剂石油亚砜浓度的实验方法.采用高氯酸电位滴定法,测定了乙酸酐非水体系中石油亚砜浓度.该法稳定可靠、操作简便.运用对应淬液法原理,测定了石油亚砜-煤油-硝酸体系中石油亚砜对硝酸的萃取平衡常数.同时,探讨了石油亚砜萃取硝酸的机理.A experimental method to determine the concentration of extractant petroleum sulphoxides (PSO) has been established. Using perchlorate potential titration method, the concentration of PSO in acetic anhydride non-aqueous system has been measured. The method is easy to operate and reliable. The equilibrium constant of the extraction of nitric acid with PSO in PSO-kerosene-nitric acid system has been obtained by using the corresponding solution principle. The mechanism of PSO extracting nitric acid has also been explored.

关 键 词：溶剂 萃取 硝酸 石油亚砜 

分 类 号：O652.62[理学—分析化学]