Production method of 1,2-difluoroethylene
AssigneeDaikin Industries, Ltd.
InventorTsubasa Nakaue
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Abstract
Provided is a method for producing 1,2-difluoroethylene, the method being capable of producing 1,2-difluoroethylene with high selectivity. The method for producing 1,2-difluoroethylene according to the present disclosure comprises performing a dehydrochlorination reaction of 1-chloro-1,2-difluoroethane in the presence or absence of a catalyst. The dehydrochlorination reaction is a gas phase reaction or a liquid phase reaction. The production method according to the present disclosure is capable of producing 1,2-difluoroethylene with high selectivity.
Claims3
A method for producing 1,2-difluoroethylene, comprising performing a dehydrochlorination reaction of 1-chloro-1,2-difluoroethane in the presence of a catalyst,
- wherein the 1,2-difluoroethylene represents a mixture of an E-form and Z-form of 1,2-difluoroethylene,
- wherein the dehydrochlorination reaction is a gas phase reaction performed at a reaction temperature of 200-1,000° C.,
- wherein the dehydrochlorination of the 1-chloro-1,2-difluoroethane is performed while introducing the 1-chloro-1,2-difluoroethane from an inlet of a reactor,
- wherein a contact time represented by a ratio W/F0 of the amount of the catalyst packed in the reactor W(g) to a flow rate of the 1-chloro-1,2-difluoroethane introduced into the reactor F0 is 3 to 150 g·sec/mL, and
- wherein the catalyst is soda lime.
Dependencies are inferred from the claim text.