Method for separating 1-chloro-3,3,3-trifluoropropene and hydrogen fluoride, and method for producing 1-chloro-3,3,3-trifluoropropene by using same
US-9221732-B2 · Dec 29, 2015 · US
Method for producing chlorotrifluoroethylene and trifluoroethylene
US2025206688A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2025206688-A1 |
| Application number | US-202519081095-A |
| Country | US |
| Kind code | A1 |
| Filing date | Mar 17, 2025 |
| Priority date | Sep 22, 2022 |
| Publication date | Jun 26, 2025 |
| Grant date | — |
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Abstract
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A production method for producing chlorotrifluoroethylene and trifluoroethylene, the method including reacting 1,1,2-trichloro-1,2,2-trifluoroethane with hydrogen in a gas phase in the presence of a diluent, in which a volume of the diluent to be supplied to a reactor at which the reaction is performed is from 0.4 times to 6 times a volume of the 1,1,2-trichloro-1,2,2-trifluoroethane to be supplied to the reactor.
First claim
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1 . A production method for producing chlorotrifluoroethylene and trifluoroethylene, the method comprising reacting 1,1,2-trichloro-1,2,2-trifluoroethane with hydrogen in a gas phase in the presence of a diluent, wherein a volume of the diluent supplied to a reactor at which the reaction is performed is from 0.4 times to 6 times a volume of the 1,1,2-trichloro-1,2,2-trifluoroethane supplied to the reactor. 2 . The production method according to claim 1 , wherein the diluent includes at least one selected from the group consisting of water vapor, nitrogen, argon, and helium. 3 . The production method according to claim 1 , wherein the diluent includes water vapor. 4 . The production method according to claim 1 , wherein a catalyst is not provided inside the reactor. 5 . The production method according to claim 1 , wherein the volume of the diluent supplied to the reactor is from 3 times to 6 times the volume of the 1,1,2-trichloro-1,2,2-trifluoroethane supplied to the reactor. 6 . The production method according to claim 1 , wherein a volume of the hydrogen supplied to the reactor is from 0.3 times to 2 times the volume of the 1,1,2-trichloro-1,2,2-trifluoroethane supplied to the reactor. 7 . The production method according to claim 1 , wherein a temperature of the reaction is from 560° C. to 600° C. 8 . The production method according to claim 1 , wherein a time of the reaction is from 1 second to 12 seconds. 9 . The production method according to claim 3 , comprising removing at least a part of the water vapor from a gas composition obtained by the reaction, the gas composition comprising the chlorotrifluoroethylene, the trifluoroethylene, and the water vapor. 10 . The production method according to claim 9 , wherein the removing includes liquefying at least a part of the water vapor at a temperature of 5° C. or lower. 11 . The production method according to claim 1 , wherein the 1,1,2-trichloro-1,2,2-trifluoroethane is obtained by fluorinating tetrachloroethylene with hydrogen fluoride in the presence of a catalyst. 12 . The production method according to claim 3 , wherein a catalyst is not provided inside the reactor. 13 . The production method according to claim 3 , wherein the volume of the diluent supplied to the reactor is from 3 times to 6 times the volume of the 1,1,2-trichloro-1,2,2-trifluoroethane supplied to the reactor. 14 . The production method according to claim 3 , wherein a volume of the hydrogen supplied to the reactor is from 0.3 times to 2 times the volume of the 1,1,2-trichloro-1,2,2-trifluoroethane supplied to the reactor. 15 . The production method according to claim 3 , wherein the 1,1,2-trichloro-1,2,2-trifluoroethane is obtained by fluorinating tetrachloroethylene with hydrogen fluoride in the presence of a catalyst. 16 . The production method according to claim 5 , wherein a volume of the hydrogen supplied to the reactor is from 0.3 times to 2 times the volume of the 1,1,2-trichloro-1,2,2-trifluoroethane supplied to the reactor.
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- What does patent US2025206688A1 cover?
- A production method for producing chlorotrifluoroethylene and trifluoroethylene, the method including reacting 1,1,2-trichloro-1,2,2-trifluoroethane with hydrogen in a gas phase in the presence of a diluent, in which a volume of the diluent to be supplied to a reactor at which the reaction is performed is from 0.4 times to 6 times a volume of the 1,1,2-trichloro-1,2,2-trifluoroethane to be supp…
- Who is the assignee on this patent?
- Agc Inc
- What technology area does this patent fall under?
- Primary CPC classification C07C17/23. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Thu Jun 26 2025 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).