Azeotropic compositions of 1,3,3-trichloro-1,1-difluoropropane and hydrogen fluoride
US-9272969-B2 · Mar 1, 2016 · US
Azeotropic or azeotrope-like compositions of 1,3,3-trichloro-3-fluoro-1-ene (HCFO-1231zd) and hydrogen fluoride (HF)
US9950974B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9950974-B2 |
| Application number | US-201615252537-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 31, 2016 |
| Priority date | Aug 31, 2016 |
| Publication date | Apr 24, 2018 |
| Grant date | Apr 24, 2018 |
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Abstract
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Azeotropic or azeotrope-like mixtures of 1,3,3-trichloro-3-fluoroprop-1-ene (HCFO-1231zd) and hydrogen fluoride (HF). Such compositions are useful as a feed stock or intermediate in the production of 1,1,1,3,3-pentafluoropropane (HFC-245fa), 1-chloro-3,3,3-trifluoropropene (HCFO-1233zd), and 1,3,3,3-tetrafluoropropene (HFO-1234ze).
First claim
Opening claim text (preview).
The invention claimed is: 1. An azeotropic or azeotrope-like composition consisting of 1,3,3-trichloro-3-fluoroprop-1-ene (HCFO-1231zd) and hydrogen fluoride (HF). 2. The composition of claim 1 , wherein the composition consists of from about 1 to about 99 wt. % hydrogen fluoride (HF) and from about 1 to about 99 wt. % 1,3,3-trichloro-3-fluoroprop-1-ene (HCFO-1231 zd), based on the combined weight of the hydrogen fluoride (HF) and 1,3,3-trichloro-3-fluoroprop-1-ene (HCFO-1231zd). 3. The composition of claim 1 , wherein the composition consists of from about 2 to about 99 wt. % hydrogen fluoride (HF) and from about 1 to about 98 wt. % 1,3,3-trichloro-3-fluoroprop-1-ene (HCFO-1231zd), based on the combined weight of the hydrogen fluoride (HF) and 1,3,3-trichloro-3-fluoroprop-1-ene (HCFO-1231zd). 4. Composition of claim 1 , wherein the composition consists of from about 2 to about 80 wt. % hydrogen fluoride (HF) and from about 20 to about 98 wt. % 1,3,3-trichloro-3-fluoroprop-1-ene (HCFO-1231zd), based on the combined weight of the hydrogen fluoride (HF) and 1,3,3-trichloro-3-fluoroprop-1-ene (HCFO-1231zd). 5. The composition of claim 1 , wherein the composition has a boiling point of about −10° C.±0.5° C. at a pressure of about 10 psia±2 psia. 6. A method of forming an azeotropic or azeotrope-like composition comprising forming a blend consisting of from about 1 to about 99 wt. % hydrogen fluoride (HF) and from about 1 to about 99 wt. % 1,3,3-trichloro-3-fluoroprop-1-ene (HCFO-1231zd), based on the combined weight of the hydrogen fluoride (HF) and 1,3,3-trichloro-3-fluoroprop-1-ene (HCFO-1231zd). 7. The method of claim 6 , wherein said forming step comprises forming a blend consisting of from about 2 to about 99 wt. % hydrogen fluoride (HF) and from about 1 to about 98 wt. % 1,3,3-trichloro-3-fluoroprop-1-ene (HCFO-1231zd), based on the combined weight of the hydrogen fluoride (HF) and 1,3,3-trichloro-3-fluoroprop-1-ene (HCFO-1231zd). 8. The method of claim 6 , wherein said forming step comprises forming a blend consisting of from about 2 to about 80 wt. % hydrogen fluoride (HF) and from about 20 to about 98 wt. % 1,3,3-trichloro-3-fluoroprop-1-ene (HCFO-1231zd), based on the combined weight of the hydrogen fluoride (HF) and 1,3,3-trichloro-3-fluoroprop-1-ene (HCFO-1231zd). 9. The method of claim 6 , wherein the composition has a boiling point of about −10° C.±0.5° C. at a pressure of about 10 psia±2 psia. 10. A method for fluorinating an organic compound comprising: providing an azeotropic or azeotrope-like composition consisting of 1,3,3-trichloro-3-fluoroprop-1-ene (HCFO-1231zd) and hydrogen fluoride (HF); and reacting at least a portion of said 1,3,3-trichloro-3-fluoroprop-1-ene (HCFO-1231zd) in the vapor phase with a fluorinating agent to produce at least one fluorinated organic compound. 11. The method of claim 10 , wherein said reacting step further comprises reacting at least a portion of said 1,3,3-trichloro-3-fluoroprop-1-ene (HCFO-1231zd) in the vapor phase with a fluorinating agent to produce 1-chloro-3,3,3-trifluoropropene (HCFO-1233zd). 12. The method of claim 10 , wherein said reacting step further comprises reacting at least a portion of said 1,3,3-trichloro-3-fluoroprop-1-ene (HCFO-1231zd) in the vapor phase with a fluorinating agent to produce 1,1,1,3,3,-pentafluoropropane (HFC-245fa). 13. The method of claim 10 , wherein said reacting step further comprises reacting at least a portion of said 1,3,3-trichloro-3-fluoroprop-1-ene (HCFO-1231zd) in the vapor phase with a fluorinating agent to produce 1,3,3,3-tetrafluoropropene (HFO-1234ze).
Assignees
Inventors
Classifications
- C07C17/35Primary
by reactions not affecting the number of carbon or of halogen atoms in the reaction · CPC title
to unsaturated halogenated hydrocarbons · CPC title
by splitting-off hydrogen halides from halogenated hydrocarbons · CPC title
- C07C17/206Primary
the other compound being HX · CPC title
with simultaneous increase of the number of halogen atoms · CPC title
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- What does patent US9950974B2 cover?
- Azeotropic or azeotrope-like mixtures of 1,3,3-trichloro-3-fluoroprop-1-ene (HCFO-1231zd) and hydrogen fluoride (HF). Such compositions are useful as a feed stock or intermediate in the production of 1,1,1,3,3-pentafluoropropane (HFC-245fa), 1-chloro-3,3,3-trifluoropropene (HCFO-1233zd), and 1,3,3,3-tetrafluoropropene (HFO-1234ze).
- Who is the assignee on this patent?
- Honeywell Int Inc
- What technology area does this patent fall under?
- Primary CPC classification C07C17/35. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Apr 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 5 related publications on this page (citations in our corpus or others sharing the same primary CPC).