Process for producing 2, 3, 3, 3-tetrafluoropropene and 1, 1-difluoroethylene
AssigneeAsahi Glass Company, Limited
InventorsShoji Furuta, Yu Takeuchi
Life of this patent
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Abstract
To provide an economically advantageous process for producing HFO-1234yf useful as a new refrigerant in sufficiently high yield by one reaction involving thermal decomposition. A process for producing HFO-1234yf and VdF from raw material containing R22, R40 and TFE, by a synthetic reaction involving thermal decomposition, which comprises (a) a step of supplying the R22, the R40 and the TFE to a reactor, as preliminarily mixed or separately, (b) a step of supplying a heat medium to the reactor, and (c) a step of bringing the heat medium in contact with the R22, the R40 and the TFE in the reactor to form the HFO-1234yf and the VdF.
Claims15
A process for producing 2,3,3,3-tetrafluoropropene and 1,1-difluoroethylene from chlorodifluoromethane, chloromethane and tetrafluoroethylene, the process comprising:
- (a) supplying chlorodifluoromethane, chloromethane and tetrafluoroethylene to a reactor, as preliminarily mixed or separately,
- (b) supplying a heat medium to the reactor, and
- (c) contacting the heat medium with chlorodifluoromethane, chloromethane and tetrafluoroethylene in the reactor to form a reaction product comprising 2,3,3,3-tetrafluoropropene and 1,1-difluoroethylene.
Dependencies are inferred from the claim text.