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Abstract

A process is disclosed for making CF₃CF₂CH₃, CF₃CF═CH₂ and/or CF₃CCl═CH₂. The process involves reacting at least one starting material selected from the group consisting of halopropanes of the formula CX₃CH₂CH₂X, halopropenes of the formula CX₃CH═CH₂ and halopropenes of the formula CX₂═CHCH₂X, wherein each X is independently F or Cl, with HF and Cl₂ in a reaction zone to produce a product mixture comprising HF, HCl, CF₃CF₂CH₃, CF₃CF═CH₂, and CF₃CCl═CH₂; and recovering the CF₃CF₂CH₃, CF₃CF═CH₂ and/or CF₃CCl═CH₂ from the product mixture. Also disclosed is a process for making CF₃CH₂CHF₂, CF₃CH═CHF, and/or CF₃CH═CHCl. This process involves reacting at least one starting material selected from the group consisting of halopropenes of the formula CX₃CH═CH₂ and halopropenes of the formula CX₂═CHCH₂X, wherein each X is independently F or Cl, with HF and Cl₂ in a reaction zone to produce a product mixture comprising HF, HCl, CF₃CH₂CHF₂, CF₃CH═CHF and CF₃CH═CHCl; and recovering the CF₃CH₂CHF₂, CF₃CH═CHF, and/or CF₃CH═CHCl from the product mixture. The molar ratio of HF to the total amount of starting materials fed to the reaction zone for both of these processes is at least stoichiometric, and the molar ratio of Cl₂ to total amount of starting material fed to the reaction zone for both of these processes is 2:1 or less.

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First Claim