Process for the manufacture of 1,1,1,3,3-pentafluoropropane

Details Process for the manufacture of 1,1,1,3,3-pentafluoropropane Process for the manufacture of 1,1,1,3,3-pentafluoropropane

C - Chemistry, Metallurgy

07

C

C07C 17/20 (2006.01) C07C 17/23 (2006.01) C07C 17/278 (2006.01) C07C 19/08 (2006.01)

Patent

CA 2192843

This invention is related to the preparation of hydrofluorocarbons (HFCs). Specifically, it relates to the fluorination of a compound of the formula: CF y Cl3-y CH2CHF w Cl2-w wherein w = 0 or 1, and y = 0 - 3, with hydrogen fluoride in the presence of a fluorination catalyst under conditions sufficient to produce a compound of the formula: CF3CH2CF2H. CF3CH2CF2H or HFC 245fa may be used as a blowing agent, a propellant, and a heat transfer agent.

Cette invention se rapporte à la préparation d'hydrofluorocarbones (HFC), et notamment à la fluoruration d'un composé de la formule CFyCl3-yCH2CHFwCl2-w, dans laquelle w = 0 ou 1, y= 0 - 3, avec du fluorure d'hydrogène en présence d'un catalyseur de fluoruration dans des conditions suffisantes pour produire un composé de la formule CF3CH2CF2H. Le composé de formule CF3CH2CF2H ou du HFC 245fa peut être utilisé comme agent gonflant, agent propulseur et agent de transfert thermique.

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