Method for Production of 1-Chloro-3,3,3-Trifluoropropene
AssigneeCentral Glass Company, Limited
InventorsHideaki IMURA, Naoto TAKADA
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Abstract
A production method of 1-chloro-3,3,3-trifluoropropene according to the present invention includes bringing a composition containing a compound of the general formula (1): CF3—CH2—CHClX (where X is a fluorine atom or a chlorine atom) into contact with a solid catalyst in the presence of hydrogen chloride. In this production method, the composition containing ozone depleting HCFC such as 3-chloro-1,1,1,3-tetraluoforpropane or 3,3-dichloro-1,1,1-trifluoropropane can be efficiently converted to the 1-chloro-3,3,3-trifluoropropene, which has less influence on the global environment and is useful as a solvent, a cleaning agent, a coolant, a working fluid, a propellant, a raw material for fluorinated resins etc.
Claims8
A production method of 1-chloro-3,3,3-trifluoropropene, comprising bringing a composition containing a compound of the general formula (1):
- CF3—CH2—CHClX (1)
- (where X is a fluorine atom or a chlorine atom)
- into contact with a solid catalyst in the presence of hydrogen chloride.
The production method according to 1, wherein the 1,3,3,3-trifluoropropene is produced from 1,1,1,3,3-pentachloropropane by the following steps:
- forming a first composition containing the compound of the general formula (1) and hydrogen chloride by contact reaction of the 1,1,1,3,3-pentachloropropane and hydrogen chloride;
- recovering the hydrogen chloride from the first composition;
- and
- bringing a second composition containing the compound of the general formula (1) into contact with the solid catalyst in the presence of the recovered hydrogen chloride.
Dependencies are inferred from the claim text.