Process for the production of 2,3,3,3-tetrafluoropropene
US-2020407293-A1 · Dec 31, 2020 · US
Process for preparing 3,3,3-trifluoroprop-1-ene
US11028028B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11028028-B2 |
| Application number | US-202016749857-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 22, 2020 |
| Priority date | Mar 10, 2017 |
| Publication date | Jun 8, 2021 |
| Grant date | Jun 8, 2021 |
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Abstract
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The present application provides a process of preparing 3,3,3-trifluoroprop-1-ene, comprising reacting 3-chloro-1,1,1-trifluoropropane with a base in an aqueous solvent component in the absence of a phase transfer catalyst.
First claim
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What is claimed is: 1. A composition comprising: i) 3-chloro-1,1,1-trifluoropropane (253fb); and ii) 1,1,1,3-tetrafluoropropane (254fb). 2. The composition of claim 1 , wherein the composition comprises 3-chloro-1,1,1-trifluoropropane (253fb), 1,1,1,3-tetrafluoropropane (254fb), 3,3,3-trifluoroprop-1-ene (1243zf), and 2-chloro-3,3,3-trifluoropropene (1233xf). 3. A composition comprising: about 95 to about 99 percent 3,3,3-trifluoroprop-1-ene (1243zf); about 1 to about 2 percent 3-chloro-1,1,1-trifluoropropane (253fb); and about 0.1 to about 0.2 percent 2-chloro-3,3,3-trifluoropropene (1233xf). 4. A composition comprising: about 98 to about 99 percent 3,3,3-trifluoroprop-1-ene (1243zf); about 1 to about 2 percent 3-chloro-1,1,1-trifluoropropane (253fb); and about 0.1 to about 0.2 percent 2-chloro-3,3,3-trifluoropropene (1233xf). 5. A composition comprising: about 70 to about 80 percent 3,3,3-trifluoroprop-1-ene (1243zf); about 20 to about 25 percent 3-chloro-1,1,1-trifluoropropane (253fb); about 0.05 to about 0.1 percent 2-chloro-3,3,3-trifluoropropene (1233xf); and about 0.01 to about 0.05 percent 1,1,1,3-tetrafluoropropane (254fb). 6. A composition comprising: about 74 to about 76 percent 3,3,3-trifluoroprop-1-ene (1243zf); about 23 to about 25 percent 3-chloro-1,1,1-trifluoropropane (253fb); about 0.05 to about 0.07 percent 2-chloro-3,3,3-trifluoropropene (1233xf); and about 0.01 to 0.02 percent 1,1,1,3-tetrafluoropropane (254fb). 7. The composition of claim 1 further comprising 3,3,3-trifluoroprop-1-ene (1243zf), 1,1,1-trifluoro-2,3-dichloropropane (243db), and 2-chloro-3,3,3-trifluoropropene (1233xf). 8. The composition of claim 1 further comprising HF. 9. The composition of claim 8 further comprising 3,3,3-trifluoroprop-1-ene (1243zf). 10. The composition of claim 8 further comprising 2-chloro-3,3,3-trifluoropropene (1233xf). 11. The composition of claim 8 further comprising 1,1,1-trifluoro-2,3-dichloropropane (243db).
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- What does patent US11028028B2 cover?
- The present application provides a process of preparing 3,3,3-trifluoroprop-1-ene, comprising reacting 3-chloro-1,1,1-trifluoropropane with a base in an aqueous solvent component in the absence of a phase transfer catalyst.
- Who is the assignee on this patent?
- Chemours Co Fc Llc
- What technology area does this patent fall under?
- Primary CPC classification C07C17/25. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jun 08 2021 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).