BaF(p-BDC)0.5 as the Catalyst Precursor for the Catalytic Dehydrochlorination of 1-Chloro-1,1-Difluoroethane to Vinylidene Fluoride
| Autor: | Wenfeng Han, Wang Chuanzhao, Zhang Jianjun, Yu Houlin, Wang Shucheng, Yu Wanjin, Yu Wei, Jiuju Wang, Zhou Feixiang, Liu Yongnan, Liu Wucan |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Materials science
Ligand vinylidene fluoride Chemical technology Barium fluoride 1-Chloro-1 1-difluoroethane TP1-1185 Catalysis law.invention chemistry.chemical_compound Chemistry chemistry law 1-chloro-1 1-difluoroethane catalytic pyrolysis Calcination barium fluoride Physical and Theoretical Chemistry Selectivity Pyrolysis Fluoride QD1-999 Nuclear chemistry dehydrochlorination |
| Zdroj: | Catalysts, Vol 11, Iss 1268, p 1268 (2021) Catalysts Volume 11 Issue 11 |
| ISSN: | 2073-4344 |
| Popis: | A BaF(p-BDC)0.5 catalyst was prepared by solid state reaction at room temperature with Ba(OH)2 as precursor, NH4F as F source, and H2(p-BDC) as organic ligand. The calcined samples were used as catalysts for dehydrochlorination of 1-chloro-1,1-difluoroethane to generate vinylidene fluoride (VDF) at 350 °C. Commercial production of VDF is carried out at 600–700 °C. Clearly, pyrolysis of the BaF(p-BDC)0.5 catalyst provided a promising way to prepare VDF at low temperatures. Prior to calcination, the activity of the BaF(p-BDC)0.5 catalyst was low. Following calcination at high temperatures, BaF(p-BDC)0.5 decomposed to BaF2 and BaCO3, and then the catalyst was chlorinated and fluorinated to BaClF, which showed high activity and stable VDF selectivity for dehydrochlorination of 1-Chloro-1,1-Difluoroethane to VDF. |
| Databáze: | OpenAIRE |
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