叔胺N_(235)萃取柠檬酸的研究  

Study on the Extraction of Citric Acid with Tertiary Amine N_(235)

作　　者：董国愔 刘卫军[2] 陈连山[1] 何钟林[3] 赵国良[4] 

机构地区：[1]辽宁师范大学化学系,辽宁省大连市116029 [2]辽宁师范高等专科学校 [3]大连轻工业学院化工系,辽宁省大连市116001 [4]大连理工大学化工学院,辽宁省大连市116012

出　　处：《光谱实验室》1997年第6期62-64,共3页Chinese Journal of Spectroscopy Laboratory

摘　　要：用正辛醇-叔胺N235-石油醚溶液革取柠檬酸有协同效应，协萃系数R=2．7；萃取为一放热反应，H=－14.6kJ·mol-1；一次萃取率可达92.2％，用稀盐酸反萃率为99.3％。测定了协萃有机相的红外光谱。The sguergistic extraction of citric acid with tertiary amine N235 and n-octanol in petroleum etherhas been studied,the synergistic effect coefficient R is equal to 2. 7;the extraction is exothermic and H is equal to - 14. 6 kJ. mol-1' The first rate of extraction is 92' 2% and the rate of extractant re-generation with dilute hydrochloric acid is 99. 3 %. The IR spectrum of organic phase of srnersistic ex-traction has been determined.

关 键 词：萃取 协同效应 柠檬酸 叔胺N235 

分 类 号：O623.615[理学—有机化学]