Method for producing mixture of fluoroalkyl iodides
US-9212110-B2 · Dec 15, 2015 · US
Azeotropic compositions of 1,1,1,3,3-pentachloropropane and hydrogen fluoride
US8999909B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8999909-B2 |
| Application number | US-201213402983-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 23, 2012 |
| Priority date | Feb 23, 2012 |
| Publication date | Apr 7, 2015 |
| Grant date | Apr 7, 2015 |
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Abstract
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Provided are azeotropic or azeotrope-like mixtures of 1,1,1,3,3-pentachloro-propane (240fa) and hydrogen fluoride. Such compositions are useful as an intermediate in the production of HFC-245fa and HCFO-1233zd.
First claim
Opening claim text (preview).
What is claimed is: 1. An azeotropic or azeotrope-like liquid composition which consists of from about 90 to about 97 weight percent hydrogen fluoride and from about 10 to about 3 weight percent 1,1,1,3,3-pentachloropropane (240fa), which composition has a boiling point of about 24° C. to about 60° C. at pressure of about 17.8 psia to pressure of about 55.4 psia.
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- C07C17/383Primary
Chemistry & Metallurgy · mapped topic
- C07C19/01Primary
Chemistry & Metallurgy · mapped topic
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- What does patent US8999909B2 cover?
- Provided are azeotropic or azeotrope-like mixtures of 1,1,1,3,3-pentachloro-propane (240fa) and hydrogen fluoride. Such compositions are useful as an intermediate in the production of HFC-245fa and HCFO-1233zd.
- Who is the assignee on this patent?
- Merkel Daniel C, Tung Hsueh Sung, Pokrovski Konstantin A, and 3 more
- What technology area does this patent fall under?
- Primary CPC classification C07C17/383. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Apr 07 2015 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).