Processes for the production of fluoropropanes and halopropenes
US-RE49849-E · Feb 27, 2024 · US
Process for producing 2,3,3,3-tetrafluoropropene
US2017174591A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2017174591-A1 |
| Application number | US-201715450367-A |
| Country | US |
| Kind code | A1 |
| Filing date | Mar 6, 2017 |
| Priority date | Nov 3, 2005 |
| Publication date | Jun 22, 2017 |
| Grant date | — |
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Abstract
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The present invention discloses a manufacturing process to produce high purity 1234yf from 245eb, which preferably includes the removal of impurities present in 245eb raw material, the dehydrofluorination of 245eb, and the removal of impurities present in final crude product. The disclosed manufacturing process allows the production of a 1234yf product with lower the levels of 1225ye and/or trifluoropropene, preferably in amounts of less than about 500, and 50 ppm, respectively.
First claim
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1 - 20 . (canceled) 21 . A composition comprising 1,1,1,2,3-pentafluoropropane (245eb), and including less than 2% by weight of any one of the compounds 1,1,1,2,3,3-hexafluoropropane (236ea) and 1,2,3,3 ,3 -pentaflu oropropene (1225ye). 22 . The coposition of claim 21 , having a concentation of 1,1,1,2,3-pentafluoropropane (245eb) of at least 99.9%. 23 . The coposition of claim 21 , including less than 1% by weight of 1,1,1,2,3,3-hexafluoropropane (236ea). 24 . The coposition of claim 21 , including less than 1% by weight of 1,2,3,3,3-pentafluoropropene (1225ye). 25 . The coposition of claim 21 , including less than 0.5% by weight of 1,1,1,2,3,3-hexafluoropropane (236ea). 26 . The coposition of claim 21 , including less than 0.5% by weight of 1,2,3,3,3-pentafluoropropene (1225ye).
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- What does patent US2017174591A1 cover?
- The present invention discloses a manufacturing process to produce high purity 1234yf from 245eb, which preferably includes the removal of impurities present in 245eb raw material, the dehydrofluorination of 245eb, and the removal of impurities present in final crude product. The disclosed manufacturing process allows the production of a 1234yf product with lower the levels of 1225ye and/or tri…
- Who is the assignee on this patent?
- Honeywell Int Inc
- 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 Thu Jun 22 2017 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).