Method for producing fluorinated organic compounds
US-2015361014-A1 · Dec 17, 2015 · US
Azeotropic compositions of 1,3,3-trichloro-1,1-difluoropropane and hydrogen fluoride
US9272969B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9272969-B2 |
| Application number | US-201313798250-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 13, 2013 |
| Priority date | Mar 13, 2013 |
| Publication date | Mar 1, 2016 |
| Grant date | Mar 1, 2016 |
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Abstract
Official abstract text for this publication.
Provided are azeotropic or azeotrope-like mixtures of 1,3,3-trichloro-1,1-difluoro-propane (HCFC-242fa) and hydrogen fluoride. Such compositions are useful as a feed stock or intermediate in the production of HFC-245fa and HCFO-1233zd.
First claim
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What is claimed is: 1. An isolated composition consisting essentially of 1,3,3-trichloro-1,1-difluoropropane (242fa) and hydrogen fluoride, wherein the percentage of HF is between 13.8 and 29.1 weight percent, wherein the composition exhibits azeotropic or azeotrope-like properties and wherein the mixture is useful as a feed stock for the production of HCFO-1233zd, which composition heterogeneous and has a boiling point of from about 0° C. to about 25° C., at a pressure of from about 7.1 psia to about 17.9 psia. 2. The composition of claim 1 , which composition has a boiling point of about 0° C., at a pressure of about 7.1 psia. 3. An isolated binary composition consisting of a mixture of 1,3,3-trichloro-1,1-difluoropropane (242fa) and hydrogen fluoride, wherein the composition exhibits azeotropic or azeotrope-like properties and wherein the vapor pressure of the mixture is 7.1 psia at 0° C. and the percentage of HF in the mixture is selected from the group consisting of 29.1, 40.3, 49.7, 51.9, 65.0, 79.3 and 93.5 weight percent, and wherein the mixture is useful as a feed stock for the production of HCFO-1233zd. 4. The composition of claim 3 , wherein the percentage of HF in the mixture is 29.1 weight percent. 5. The composition of claim 3 , wherein the percentage of HF in the mixture is 40.3 weight percent. 6. The composition of claim 3 , wherein the percentage of HF in the mixture is 49.7 weight percent. 7. The composition of claim 3 , wherein the percentage of HF in the mixture is 51.9 weight percent. 8. The composition of claim 3 , wherein the percentage of HF in the mixture is 65.0 weight percent. 9. The composition of claim 3 , wherein the percentage of HF in the mixture is 79.3 weight percent. 10. The composition of claim 3 , wherein the percentage of HF in the mixture is 93.5 weight percent. 11. An isolated binary composition consisting of a heterogeneous mixture of 1,3,3-trichloro-1,1-difluoropropane (242fa) and hydrogen fluoride, and wherein the azeotropic composition is about 89±2 wt % HF at 0° C.
Assignees
Inventors
Classifications
Azeotropic mixtures containing halogenated solvents · CPC title
containing chlorine and fluorine · CPC title
- C07C19/10Primary
and chlorine · CPC title
Acids · CPC title
comprising halogenated compounds · CPC title
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Frequently asked questions
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- What does patent US9272969B2 cover?
- Provided are azeotropic or azeotrope-like mixtures of 1,3,3-trichloro-1,1-difluoro-propane (HCFC-242fa) and hydrogen fluoride. Such compositions are useful as a feed stock or intermediate in the production of HFC-245fa and HCFO-1233zd.
- Who is the assignee on this patent?
- Honeywell Int Inc
- What technology area does this patent fall under?
- Primary CPC classification C07C19/10. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Mar 01 2016 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).