GB621555A - Improvements in or relating to the production of fluorocarbons - Google Patents
Improvements in or relating to the production of fluorocarbonsInfo
- Publication number
- GB621555A GB621555A GB1175543A GB1175543A GB621555A GB 621555 A GB621555 A GB 621555A GB 1175543 A GB1175543 A GB 1175543A GB 1175543 A GB1175543 A GB 1175543A GB 621555 A GB621555 A GB 621555A
- Authority
- GB
- United Kingdom
- Prior art keywords
- solvent
- fluorocarbons
- hydrocarbons
- recovered
- mixture
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C17/00—Preparation of halogenated hydrocarbons
- C07C17/38—Separation; Purification; Stabilisation; Use of additives
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Extraction Or Liquid Replacement (AREA)
Abstract
Fluorocarbons are recovered from a mixture of one or more hydrocarbons with partially and completely fluorinated products thereof by contacting the mixture in the cold with a solvent for the hydrocarbons which is substantially a non-solvent for the fluorocarbons at the temperature of extraction, separating the fluorocarbon layer from the solvent layer, and distilling the fluorocarbon layer. The solvent may be a lower aliphatic alcohol or ketone. The hydrocarbon in the extract may be recovered by adding water. Examples are given of the recovery of fluorinated heptane and toluene using methylated spirit as solvent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1175543A GB621555A (en) | 1943-07-19 | 1943-07-19 | Improvements in or relating to the production of fluorocarbons |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1175543A GB621555A (en) | 1943-07-19 | 1943-07-19 | Improvements in or relating to the production of fluorocarbons |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB621555A true GB621555A (en) | 1949-04-12 |
Family
ID=9992111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1175543A Expired GB621555A (en) | 1943-07-19 | 1943-07-19 | Improvements in or relating to the production of fluorocarbons |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB621555A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0106317A1 (en) * | 1982-10-13 | 1984-04-25 | AUSIMONT S.p.A. | Purification of fluorinated lubricants free from hydrogen |
| CN115806459A (en) * | 2022-12-13 | 2023-03-17 | 山东新时代药业有限公司 | Purification method for recovering fluorocarbon solvent from mixed waste solvent |
-
1943
- 1943-07-19 GB GB1175543A patent/GB621555A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0106317A1 (en) * | 1982-10-13 | 1984-04-25 | AUSIMONT S.p.A. | Purification of fluorinated lubricants free from hydrogen |
| CN115806459A (en) * | 2022-12-13 | 2023-03-17 | 山东新时代药业有限公司 | Purification method for recovering fluorocarbon solvent from mixed waste solvent |
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