反式-1,2-环己二醇绿色制备工艺

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摘要:

己二酸生产工艺中产生大量的环氧环己烷,通常作为工业废液来处理,消耗了大量的人力、财力.以己二酸工艺副产品环氧环己烷为原料,非均相阳离子交换树脂为催化剂来制备高附加值的反式-1,2-环己二醇,解决了废液处理等环境问题,探究了较佳工艺条件,即:以25.0g环氧环己烷计,m(环氧环己烷)/m(水)=1.0/4.42,催化剂用量为26.0g,反应温度为60℃,反应时间2.0~2.5h,在此条件下进行4次试验,环己二醇的选择性约80.0%,环氧环己烷转化率约98.0%,4次试验有较好的重现性.经熔点仪,DSC,FTIR检测所得产物为目的产物反式-1,2-环己二醇.

A large amount of epoxycyclohexane handled as industrial waste were produced in the adipic acid production process,this comsumes a lot of manpower and financial resources.In order to solve the problem of environmental such as waste disposal,trans-1,2-cyclohexanediol was prepared with epoxycyclohexane by-products of adipic acid and heterogeneous cation exchange resin.The appropriate reaction conditions are as follows(based on 25.0g epoxycyclohexane):m(epoxycyclohexane)/m(water)=1/4.42,26.0g catalyst,reaction temperature 60 ℃,reaction time 2.0-2.5h.Under these conditions,repeated the test four times and have good reproducibility,the selectivity of cyclohexanediol is about 80.0%,the conversion of epoxycyclohexene is about 98.0%.The production is the desired produce trans-1,2-cyclohexanediol detected by Melting Point System,DSC and FTIR.

作者:

李吉芳李世强窦晓勇郑晓广

机构地区:

炼焦煤资源开发及综合利用国家重点实验室中国平煤神马集团

出处:

《betway官方app 学报：自然科学版》 CAS 北大核心 2017年第5期23-27,共5页

基金:

河南省科技攻关重点项目(152102210043)

关键词:

反式-1,2-环己二醇环氧环己烷水解阳离子交换树脂

trans-1,2-cyclohexanediol epoxycyclohexene hydrolysis cation exchange resin

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