GB810571A - Improvements in or relating to the ozonisation of olefinically unsaturated fatty acids and products obtained thereby - Google Patents
Improvements in or relating to the ozonisation of olefinically unsaturated fatty acids and products obtained therebyInfo
- Publication number
- GB810571A GB810571A GB3404056A GB3404056A GB810571A GB 810571 A GB810571 A GB 810571A GB 3404056 A GB3404056 A GB 3404056A GB 3404056 A GB3404056 A GB 3404056A GB 810571 A GB810571 A GB 810571A
- Authority
- GB
- United Kingdom
- Prior art keywords
- acids
- azelaic
- treated
- ozonized air
- dispersion
- 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
- C07C51/34—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with ozone; by hydrolysis of ozonides
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
The ozonolysis of olefinically unsaturated fatty acids insoluble or sparingly soluble in water is effected by passing ozonized air or ozonized oxygen into an aqueous dispersion of the acid. The dispersion so obtained may be treated with an hydrolytic agent and while the hydrolysis product is still in the form of an aqueous dispersion with a gas containing oxygen and ozone (e.g. ozonized air) to give carboxylic acids. Alternatively the aldehyde hydrolysis products may be isolated as such. The dispersion may be improved by including an emulsifying agent. Where an alkali is used as hydrolytic agent, the organic acids may conveniently be liberated by acidification before carrying out the final oxidizing step. In examples: (1) oleic acid is emulsified with water, treated with ozonized air and the product hydrolysed with NaOH, preferably with cooling; after liberation of the free acids with HCl, the mixture is warmed to 60 DEG C. and treated with ozonized air giving azelaic and pelargonic acids; (2) brassylic and pelargonic acids from erucic acid; (3) azelaic and pelargonic acids from sodium oleate; and (4) azelaic and caproic acids from linoleic acid containing some sodium linoleate are prepared similarly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3404056A GB810571A (en) | 1956-11-07 | 1956-11-07 | Improvements in or relating to the ozonisation of olefinically unsaturated fatty acids and products obtained thereby |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3404056A GB810571A (en) | 1956-11-07 | 1956-11-07 | Improvements in or relating to the ozonisation of olefinically unsaturated fatty acids and products obtained thereby |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB810571A true GB810571A (en) | 1959-03-18 |
Family
ID=10360617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3404056A Expired GB810571A (en) | 1956-11-07 | 1956-11-07 | Improvements in or relating to the ozonisation of olefinically unsaturated fatty acids and products obtained thereby |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB810571A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3246008A (en) * | 1961-10-03 | 1966-04-12 | Skelly Oil Co | Reaction products of ozonized fatty acids and alkylene polyamines |
| US3249451A (en) * | 1961-10-03 | 1966-05-03 | Skelly Oil Co | Anti-stripping agents for bituminous materials |
| US6362368B1 (en) * | 1999-08-05 | 2002-03-26 | Frische Gmbh | Method of producing dicarboxylic acids suitable for synthesis of polymers or polyamides |
| WO2016162628A1 (en) | 2015-04-07 | 2016-10-13 | Association De Gestion De L'institut Polytechnique Lasalle Beauvais | Novel ozone-based method for the simultaneous synthesis of azelaic acid and pelargonic acid |
| US20210371369A1 (en) * | 2018-10-19 | 2021-12-02 | P2 Science, Inc. | New methods for disproportionation quenching of ozonides |
-
1956
- 1956-11-07 GB GB3404056A patent/GB810571A/en not_active Expired
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3246008A (en) * | 1961-10-03 | 1966-04-12 | Skelly Oil Co | Reaction products of ozonized fatty acids and alkylene polyamines |
| US3249451A (en) * | 1961-10-03 | 1966-05-03 | Skelly Oil Co | Anti-stripping agents for bituminous materials |
| US6362368B1 (en) * | 1999-08-05 | 2002-03-26 | Frische Gmbh | Method of producing dicarboxylic acids suitable for synthesis of polymers or polyamides |
| WO2016162628A1 (en) | 2015-04-07 | 2016-10-13 | Association De Gestion De L'institut Polytechnique Lasalle Beauvais | Novel ozone-based method for the simultaneous synthesis of azelaic acid and pelargonic acid |
| FR3034765A1 (en) * | 2015-04-07 | 2016-10-14 | Ass De Gestion De L'institut Polytechnique Lasalle Beauvais | NOVEL METHOD FOR THE SIMULTANEOUS SYNTHESIS OF AZELAIC ACID AND PELARGONIC ACID BY OZONE |
| US20210371369A1 (en) * | 2018-10-19 | 2021-12-02 | P2 Science, Inc. | New methods for disproportionation quenching of ozonides |
| US11814350B2 (en) * | 2018-10-19 | 2023-11-14 | P2 Science, Inc. | Methods for disproportionation quenching of ozonides |
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