固体超强酸催化涤纶废料制备对苯二甲酸二异辛酯的研究  

STUDY ON SYNTHESIS OF DIOCTYL TEREPHTHALATE FROM WASTE TERYLENE CATALYZED BY SOLID SUPER-ACID

作　　者：贾树勇[1] 徐占林[1] 任玉荣[1] 侴晓玉[1] 于庆勇[1] 

机构地区：[1]吉林师范大学化学学院,吉林四平136000

出　　处：《精细石油化工》2004年第6期1-3,共3页Speciality Petrochemicals

基　　金：吉林省四平市科学技术局项目(四科合字第20030019号)

摘　　要：以自制的固体超强酸SM为催化剂,以涤纶(PET)废料和异辛醇(2-EH)为原料合成了对苯二甲酸二异辛酯(DOTP),最佳反应条件为:n(PET):n(2-EH)=1:3.8,m(SM):m(PET):1:8.4,反应温度为210-220℃,反应时间3h,DOTP收率可达97.2%。A new solid super-acid(SM) was synthesized, and was used as catalyst to synthesize dioctyl terephthalate(DOTP) from waste terylene(PET) and 2-ethyl hexanol(2-EH). The Results showed that the optimum reaction conditions were as follows: molar ratio of PET to 2-EH 1:3. 8, mass ratio of catalyst to PET 1: 8. 4, reaction temperature 210-220℃, reaction time 3h, yield of DOTP 97. 2 %. The catalyst SM could replace other catalysts such as Zinc acetate, tetrabutyl titanate etc. for synthesis of DOTP.

关 键 词：固体超强酸 对苯二甲酸 PET 酸催化 异辛醇 收率 涤纶废料 最佳反应条件 反应温度 合成 

分 类 号：TE624[石油与天然气工程—油气加工工程] TQ225[化学工程—有机化工]