摘要
反式-1-氯-3,3,3-三氟丙烯[HCFO-1233zd(E)]的臭氧消耗潜值(ODP)为0.00024,温室效应潜值(GWP)为7.0,环保性能优良,已被国际社会认定为第四代氟代烃发泡剂,应用前景广阔。本文对现有HCFO-1233zd(E)制备方法进行综述,通过比较各合成路线优缺点,提出以HCC-240fa及其衍生物为原料的合成路线最具工业化前景。同时,对制备工艺中涉及的HCFO-1233zd(E)与HF和副产物共沸分离问题进行了分析总结。最后指出高效的氟化催化剂和绿色的分离工艺是未来HCFO-1233zd(E)工业化开发的研究重点。
Trans-1-chloro-3,3,3-trifluoropropene[HCFO-1233zd(E)]has virtually zero ozone depletion potential(ODP,0.00024)and very low global warming potential(GWP,7),and therefore it has been proposed as the fourth-generation blowing agent to replace1,1-dichloro-1-fluoroethane(HCFC-141b)and1,1,1,3,3-pentafluoropropane(HFC-245fa),due to its very low impact for environment.Synthetic methods of HCFO-1233zd(E)were summarized according to the starting materials.Compared with other routes,the process using HCC-240fa and its derivatives as starting material features good yield and excellent selectivity,and thus has an industrialization prospect.Moreover,the azeotropic separation of HCFO-1233zd(E)with HF and by-product in the preparation process was analyzed and summarized.Developing efficient fluorination catalyst and environmentally friendly purification technology is fundamentally important for industrial synthesis of HCFO-1233zd(E).
作者
曾纪珺
韩升
唐晓博
赵波
郝志军
张伟
吕剑
ZENG Jijun;HAN Sheng;TANG Xiaobo;ZHAO Bo;HAO Zhijun;ZHANG Wei;Lü Jian(State Key Laboratory of Fluorine & Nitrogen Chemicals,Xi’an 710065,Shaanxi,China;Xi’an Modern Chemistry Research Institute,Xi’an 710065,Shaanxi,China)
出处
《化工进展》
EI
CAS
CSCD
北大核心
2017年第11期4132-4141,共10页
Chemical Industry and Engineering Progress
基金
陕西省科技统筹创新工程计划项目(2015KTZDGY05-07)
关键词
反式-1-氯-3
3
3-三氟丙烯
发泡剂
合成
分离
trans-1-chloro-3,3,3-trifluoropropene[HCFO-1233zd(E)]
blowing agent
synthesis
separation
