Process for producing fluorine-containing olefin
US-2016355453-A1 · Dec 8, 2016 · US
Azeotropic or azeotrope-like compositions of 3,3,3-trifluoropropyne and water
US10029964B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10029964-B2 |
| Application number | US-201615251468-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 30, 2016 |
| Priority date | Aug 30, 2016 |
| Publication date | Jul 24, 2018 |
| Grant date | Jul 24, 2018 |
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Abstract
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Azeotropic or azeotrope-like compositions of 3,3,3-trifluoropropyne and water, such as from about 1 to about 50 wt. % water and from about 50 to about 99 wt. % 3,3,3-trifluoropropyne, based on the combined weight of the water and 3,3,3-trifluoropropyne, and methods of producing essentially water free 3,3,3-trifluoropropyne.
First claim
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The invention claimed is: 1. An azeotropic or azeotrope-like composition consisting essentially of 3,3,3-trifluoropropyne and water. 2. The composition of claim 1 , wherein the composition consists of water and 3,3,3-trifluoropropyne. 3. The composition of claim 1 , wherein the composition comprises from about 1 to about 50 wt. % water and from about 50 to about 99 wt. % 3,3,3-trifluoropropyne, based on the combined weight of the water and 3,3,3-trifluoropropyne. 4. The composition of claim 3 , wherein the composition comprises from about 0.1 to about 50 wt. % water and from about 50 to about 99.9 wt. % 3,3,3-trifluoropropyne, based on the combined weight of the water and 3,3,3-trifluoropropyne. 5. The composition of claim 1 , wherein the composition has a boiling point of about −47° C.±0.5° C. at a pressure of about 14.4 psia±2 psia. 6. The composition of claim 5 , wherein the composition has a boiling point of about −46.8° C. at a pressure of about 14.4 psia. 7. An azeotropic or azeotrope-like composition consisting essentially of from about 1 to about 50 wt. % water and from about 50 to about 99 wt. % 3,3,3-trifluoropropyne, based on the combined weight of the water and 3,3,3-trifluoropropyne, which composition has a boiling point of about −47° C.±0.5° C. at a pressure of about 14.4 psia±2 psia. 8. The composition of claim 7 , wherein the composition consists of water and 3,3,3-trifluoropropyne. 9. A method of forming an azeotropic or azeotrope-like composition comprising forming a blend consisting essentially of from about 1 to about 50 wt. % water and from about 50 to about 99 wt. % 3,3,3-trifluoropropyne, based on the combined weight of the water and 3,3,3-trifluoropropyne. 10. The method of claim 9 , wherein the composition consists of water and 3,3,3-trifluoropropyne. 11. The method of claim 9 , wherein said forming step comprises forming a blend consisting essentially of from about 0.1 to about 50 wt. % water from about 50 to about 99.9 wt. % 3,3,3-trifluoropropyne, based on the combined weight of the water and 3,3,3-trifluoropropyne. 12. The method of claim 9 , wherein the composition has a boiling point of about −47° C.±0.5° C. at a pressure of about 14.4 psia±2 psia. 13. The method of claim 9 , wherein the composition has a boiling point of about −46.8° C. at a pressure of about 14.4 psia. 14. A method for producing essentially water free 3,3,3-trifluoropropyne, comprising the steps of: forming an azeotropic or azeotrope-like composition consisting essentially of from about 1 to about 50 wt. % water and from about 50 to about 99 wt. % 3,3,3-trifluoropropyne, based on the combined weight of the water and 3,3,3-trifluoropropyne, the composition including a water-rich phase and a 3,3,3-trifluoropropyne rich phase; separating the water-rich phase and the 3,3,3-trifluoropropyne rich phase; and removing water from the 3,3,3-trifluoropropyne rich phase to produce 3,3,3-trifluoropropyne having less than 1.0 wt. % water. 15. The method of claim 14 , wherein said forming step comprises forming an azeotropic or azeotrope-like composition consisting essentially of from about 0.1 to about 50 wt. % water and from about 50 to about 99.9 wt. % 3,3,3-trifluoropropyne, based on the combined weight of the water and 3,3,3-trifluoropropyne, the composition including a water-rich phase and a 3,3,3-trifluoropropyne rich phase. 16. The method of claim 14 , wherein said removing step further comprises removing water from the 3,3,3-trifluoropropyne rich phase using at least one removal agent selected from the group consisting of a molecular sieve, calcium sulfate, silica, alumina, and combinations thereof. 17. The method of claim 14 , wherein said removing step further comprises separating the water-rich phase and the 3,3,3-trifluoropropyne rich phase by liquid-liquid phase separation. 18. The method of claim 14 , wherein said removing step further comprises removing water from the 3,3,3-trifluoropropyne rich phase to produce 3,3,3-trifluoropropyne having less than 0.5 wt. % water. 19. The method of claim 14 , wherein said removing step further comprises removing water from the 3,3,3-trifluoropropyne rich phase to produce 3,3,3-trifluoropropyne having less than 0.1 wt. % water. 20. The method of claim 14 , wherein said removing step further comprises separating the water-rich phase and the 3,3,3-trifluoropropyne rich phase by distillation.
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- What does patent US10029964B2 cover?
- Azeotropic or azeotrope-like compositions of 3,3,3-trifluoropropyne and water, such as from about 1 to about 50 wt. % water and from about 50 to about 99 wt. % 3,3,3-trifluoropropyne, based on the combined weight of the water and 3,3,3-trifluoropropyne, and methods of producing essentially water free 3,3,3-trifluoropropyne.
- Who is the assignee on this patent?
- Honeywell Int Inc
- What technology area does this patent fall under?
- Primary CPC classification C07C21/22. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jul 24 2018 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 6 related publications on this page (citations in our corpus or others sharing the same primary CPC).