弱碱性树脂分离有机羧酸稀溶液的研究  

Sorption of carboxylic acid from aqueous solution onto weaklybasic resin

作　　者：胡徐腾[1] 焦洁心[1] 秦炜[1] 戴猷元[1] 

机构地区：[1]清华大学化学工程系

出　　处：《清华大学学报（自然科学版）》1998年第6期34-37,共4页Journal of Tsinghua University(Science and Technology)

基　　金：国家自然科学基金

摘　　要：以乳酸稀溶液、乙酸稀溶液和丁二酸稀溶液为分离对象，实验测定了三种树脂的吸附等温线，讨论了吸附平衡的影响因素。结果表明，弱碱性树脂Ｄ３０１Ｇ可以提供较高的吸附量，在有机羧酸和水之间具有较好的选择性。论文还探讨了乳酸—乙酸体系和乳酸—丁二酸体系分离的可能性。Sorption equilibrium curves of lactic acid, succinic acid and acetic acid from aqueous solution onto three polymeric resins have been investigated and the factors related to sorption equilibrium are discussed. Results show that weakly basic resin D301G can provide high uptake capacity and high selectivity for acid over water. The separation possibility of lactic acidsuccinic acid system and lactic acidacetic acid system has been discussed.

关 键 词：弱碱性树脂 乳酸 丁二酸 乙酸 有机羧酸 

分 类 号：O622.5[理学—有机化学] O658[理学—化学]