合成偏氟乙烯和含氟丙烯的催化剂及应用研究进展

Research Progress in Catalysts and Applications for the Synthesis of Vinylidene Fluoride and Fluoropropylene

由于含氟烯烃在自然界易降解、对臭氧层破坏力小、对环境友好的特性,近年来在科研和工业领域得到广泛关注.偏氟乙烯(VDF)和含氟丙烯是重要的含氟烯烃,主要用于合成氟弹性体高分子功能材料的单体和含氟树脂等.我们参照偏氟乙烯的合成发展史,主要介绍了通过催化,热裂解和共裂解方法合成偏氟乙烯过程中使用的催化剂类型、工艺条件和结果对比,综述了近年来偏氟乙烯的主要合成方法,并介绍了通过直接催化氟化法合成含氟丙烯的工艺技术及其可能机理研究进展.

Due to fluorine-containing olefins easy degradation in nature, low destructive power to the ozone layer, and environmentally friendly properties, they have received extensive attention in research and industry in recent years. Vinylidene fluoride (VDF) and fluorine-containing propylene are important fluorine-containing olefins, and they are mainly used for synthesizing monomers and fluorine-containing resins of fluoroelastomer polymer functional materials. In this paper, the development history of vinylidene fluoride is introduced. The types, process conditions and results of catalysts used in the synthesis of vinylidene fluoride by catalytic, thermal cracking and co-cracking methods are introduced. The main synthetic methods of vinylidene fluoride in recent years are reviewed. And introduced the research progress of the process technology and the possible mechanism of the synthesis of fluoropropylene by direct catalytic fluorination.