GB1364126A - Oleic acid - Google Patents
Oleic acidInfo
- Publication number
- GB1364126A GB1364126A GB5741271A GB5741271A GB1364126A GB 1364126 A GB1364126 A GB 1364126A GB 5741271 A GB5741271 A GB 5741271A GB 5741271 A GB5741271 A GB 5741271A GB 1364126 A GB1364126 A GB 1364126A
- Authority
- GB
- United Kingdom
- Prior art keywords
- oleic acid
- acid
- less
- distillation
- still
- 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
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11C—FATTY ACIDS FROM FATS, OILS OR WAXES; CANDLES; FATS, OILS OR FATTY ACIDS BY CHEMICAL MODIFICATION OF FATS, OILS, OR FATTY ACIDS OBTAINED THEREFROM
- C11C1/00—Preparation of fatty acids from fats, fatty oils, or waxes; Refining the fatty acids
- C11C1/08—Refining
- C11C1/10—Refining by distillation
- C11C1/103—Refining by distillation after or with the addition of chemicals
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/42—Separation; Purification; Stabilisation; Use of additives
- C07C51/43—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation
- C07C51/44—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation by distillation
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Life Sciences & Earth Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Microbiology (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Wood Science & Technology (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
1364126 Oleic acid CRODA INTERNATIONAL Ltd 8 Feb 1973 [10 Dec 1971] 57412/71 Heading C2C Oleic acid with improved colour stability is prepared by adding less than 2À5% based on the weight of oleic acid, of hypophosphorous acid or a salt thereof, followed by vacuum distillation. The acid or an alkali metal, alkaline earth metal, ammonium or amine salt may be used and the mixture may be heated, e.g. to below 280‹ C. prior to the distillation which may be with a still pot temperature of 180-250‹ C., a still vapour temperature of 180-230‹ C and a pressure of less than 10 mm. Hg absolute.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5741271A GB1364126A (en) | 1971-12-10 | 1971-12-10 | Oleic acid |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5741271A GB1364126A (en) | 1971-12-10 | 1971-12-10 | Oleic acid |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1364126A true GB1364126A (en) | 1974-08-21 |
Family
ID=10479125
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5741271A Expired GB1364126A (en) | 1971-12-10 | 1971-12-10 | Oleic acid |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1364126A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2218984A (en) * | 1988-05-27 | 1989-11-29 | Renafield Limited | High-concentration mixtures of polyunsaturated fatty acids and their esters derived from animal &/or vegetable oils, & their prophylactic or therapeutic uses |
-
1971
- 1971-12-10 GB GB5741271A patent/GB1364126A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2218984A (en) * | 1988-05-27 | 1989-11-29 | Renafield Limited | High-concentration mixtures of polyunsaturated fatty acids and their esters derived from animal &/or vegetable oils, & their prophylactic or therapeutic uses |
GB2218984B (en) * | 1988-05-27 | 1992-09-23 | Renafield Limited | Process for preparing high-concentration mixtures of polyunsaturated fatty acids & their esters and their prophylactic or therapeutic uses |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |