Use of ternary compositions
US-2015344761-A1 · Dec 3, 2015 · US
Azeotropic or quasi-azeotropic composition of chloromethane
US9969918B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9969918-B2 |
| Application number | US-201715481873-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 7, 2017 |
| Priority date | Dec 26, 2012 |
| Publication date | May 15, 2018 |
| Grant date | May 15, 2018 |
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Abstract
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Quasi-azeotropic or azeotropic compositions containing chloromethane and at least one or more compound(s) selected from 2,3,3,3-tetrafluoropropene, 3,3,3-trifluoropropene, 1,1,1,2-tetrafluoroethane, 1,1,1,2,2-pentafluoropropane, E/Z-1,1,3,3,3-pentafluoropropene, E/Z-1,2,3,3,3-pentafluoropropene, 1,1-difluoroethane and E-1,3,3,3-tetrafluoropropene. The composition may include either from 0.5 to 70 mol % of chloromethane and at least from 99.5 to 30 mol % of a compound selected from 2,3,3,3-tetrafluoropropene, 1,1-difluoroethane, 3,3,3-trifluoropropene and 1,1,1,2-tetrafluoroethane, or from 55 to 95 mol % of chloromethane and at least from 45 to 5 mol % of one or more compound(s) selected from 1,1,1,2,2-pentafluoropropane, E/Z-1,1,3,3,3-pentafluoropropene, E/Z-1,2,3,3,3-pentafluoropropene and E-1,3,3,3-tetrafluoropropene.
First claim
Opening claim text (preview).
The invention claimed is: 1. An azeotropic or quasi-azeotropic composition comprising: 5 to 20 mol % of chloromethane, 20 to 45 mol % of HF, and 35 to 70 mol % of 2,3,3,3-tetrafluoropropene. 2. An azeotropic or quasi-azeotropic composition comprising: 35 to 60 mol % of chloromethane, 15 to 45 mol % of HF, and 15 to 30 mol % of 1,1,1,2,2-pentafluoropropane. 3. An azeotropic or quasi-azeotropic composition comprising: 1 to 30 mol % of chloromethane, 15 to 45 mol % of HF, and 30 to 85 mol % of 1,1-difluoroethane. 4. An azeotropic or quasi-azeotropic composition comprising: 40 to 70 mol % of chloromethane, 15 to 40 mol % of HF, and 10 to 30 mol % of E-1,3,3,3-tetrafluoropropene.
Assignees
Inventors
Classifications
- C09K5/044Primary
comprising halogenated compounds · CPC title
Unsaturated fluorinated hydrocarbons · CPC title
the change of state being from liquid to vapour or vice versa · CPC title
gases · CPC title
Halogenated hydrocarbons · CPC title
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- What does patent US9969918B2 cover?
- Quasi-azeotropic or azeotropic compositions containing chloromethane and at least one or more compound(s) selected from 2,3,3,3-tetrafluoropropene, 3,3,3-trifluoropropene, 1,1,1,2-tetrafluoroethane, 1,1,1,2,2-pentafluoropropane, E/Z-1,1,3,3,3-pentafluoropropene, E/Z-1,2,3,3,3-pentafluoropropene, 1,1-difluoroethane and E-1,3,3,3-tetrafluoropropene. The composition may include either from 0.5 to …
- Who is the assignee on this patent?
- Arkema France
- What technology area does this patent fall under?
- Primary CPC classification C09K5/044. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue May 15 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 12 related publications on this page (citations in our corpus or others sharing the same primary CPC).