GB581628A - Improvements in or relating to the manufacture of fluorine containing organic compounds - Google Patents
Improvements in or relating to the manufacture of fluorine containing organic compoundsInfo
- Publication number
- GB581628A GB581628A GB18112/44A GB1811244A GB581628A GB 581628 A GB581628 A GB 581628A GB 18112/44 A GB18112/44 A GB 18112/44A GB 1811244 A GB1811244 A GB 1811244A GB 581628 A GB581628 A GB 581628A
- Authority
- GB
- United Kingdom
- Prior art keywords
- relating
- manufacture
- organic compounds
- containing organic
- fluorine containing
- 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
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/093—Preparation of carboxylic acids or their salts, halides or anhydrides by hydrolysis of —CX3 groups, X being halogen
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Trifluoracetic acid is produced by acid hydrolysis of CF3.CCl3, preferably in presence of a mercury sulphate as catalyst. Temperatures and pressures may be about normal or above. In an example, CF3.CCl3 and a mixture of mercurous and mercuric sulphates are cooled to 0 DEG C. and oleum containing 65 per cent SO3 added while the temperature rises to slightly above that of the room. When 83 per cent of the chlorine is hydrolysed, the mixture is decomposed with ice water, barium carbonate added, evaporated to dryness, extrated with alcohol, decomposed with sulphuric acid, and trifluoracetic acid recovered by distillation.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US581628XA | 1943-09-24 | 1943-09-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB581628A true GB581628A (en) | 1946-10-18 |
Family
ID=22015082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB18112/44A Expired GB581628A (en) | 1943-09-24 | 1944-09-22 | Improvements in or relating to the manufacture of fluorine containing organic compounds |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB581628A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2915552A (en) * | 1954-08-27 | 1959-12-01 | Minnesota Mining & Mfg | Method for producing polyfluorochlorinated carboxylic acids |
| US2939888A (en) * | 1954-08-27 | 1960-06-07 | Minnesota Mining & Mfg | Fluoroperhalogenated alkanes and method of preparation thereof |
| US3160659A (en) * | 1960-05-20 | 1964-12-08 | Halocarbon Prod Corp | Preparation of perfluoro-and perchlorofluoro-acetyl chloride |
-
1944
- 1944-09-22 GB GB18112/44A patent/GB581628A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2915552A (en) * | 1954-08-27 | 1959-12-01 | Minnesota Mining & Mfg | Method for producing polyfluorochlorinated carboxylic acids |
| US2939888A (en) * | 1954-08-27 | 1960-06-07 | Minnesota Mining & Mfg | Fluoroperhalogenated alkanes and method of preparation thereof |
| US3160659A (en) * | 1960-05-20 | 1964-12-08 | Halocarbon Prod Corp | Preparation of perfluoro-and perchlorofluoro-acetyl chloride |
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