Method for manufacturing 2-Chloro-1, 1-difluoroethane (HCFC-142), 1,1,2-trifluoroethane (HFC-143), and (E)-1,2-difluoroethylene (HFO-1132(E)) and/or (Z)-1,2-difluoroethylene (HFO-1132(Z))
AssigneeDaikin Industries, Ltd.
InventorsMegumi Kushida, Kazuhiro Takahashi, Tsubasa Nakaue
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Abstract
An object of the present disclosure is to provide a method for producing HCFC-142, which is a target product, with high yield and high efficiency, by preventing the decomposition of starting materials, such as HCC-140 and HCO-1130. A method for producing HCFC-142, comprising bringing a chlorine-containing compound into contact with hydrogen fluoride in the presence of a stabilizer to perform at least one fluorination reaction, thus obtaining a reaction gas containing HCFC-142, hydrogen chloride, and hydrogen fluoride.
Claims9
A method for producing 2-chloro-1,1-difluoroethane (HCFC-142), comprising
- bringing at least one chlorine-containing compound selected from the group consisting of 1,1,2-trichloroethane (HCC-140), (E)-1,2-dichloroethylene (HCO-1130(E)), (Z)-1,2-dichloroethylene (HCO-1130(Z)), 1,2-dichloro-1-fluoroethane (HCFC-141), (E)-1-chloro-2 fluoroethylene (HCFO-1131(E)), and (Z)-1-chloro-2-fluoroethylene (HCFO-1131(Z)) into contact with hydrogen fluoride
- in the presence of at least one stabilizer selected from the group consisting of hydroquinone stabilizers, unsaturated alcohol stabilizers, nitro stabilizers, amine stabilizers, phenolic stabilizers, epoxy stabilizers, and other stabilizers,
- the other stabilizer being at least one stabilizer selected from the group consisting of butylhydroxytoluene, butylhydroxyanisole, 2-propanol, and α-pinene,
- to perform at least one fluorination reaction,
- thus obtaining a reaction gas containing HCFC-142, hydrogen chloride, and hydrogen fluoride.
Dependencies are inferred from the claim text.