GB370964A - Process for the manufacture of improved fatty acids from low quality fatty oils and fats - Google Patents
Process for the manufacture of improved fatty acids from low quality fatty oils and fatsInfo
- Publication number
- GB370964A GB370964A GB3327530A GB3327530A GB370964A GB 370964 A GB370964 A GB 370964A GB 3327530 A GB3327530 A GB 3327530A GB 3327530 A GB3327530 A GB 3327530A GB 370964 A GB370964 A GB 370964A
- Authority
- GB
- United Kingdom
- Prior art keywords
- fatty acids
- acid
- carried out
- esterification
- alcohol
- 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
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F20/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride, ester, amide, imide or nitrile thereof
- C08F20/62—Monocarboxylic acids having ten or more carbon atoms; Derivatives thereof
- C08F20/64—Acids; Metal salts or ammonium salts thereof
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Fats And Perfumes (AREA)
Abstract
Improved fatty acids are produced from low quality animal and vegetable oils containing unsaturated fatty acids by esterifying the unsaturated acids with an aliphatic alcohol, then polymerizing by heating to say 200-300 DEG C., but not to the boiling-point, if desired while passing through a current of inert gas, with or without reduced pressure, and finally splitting the polymerized substances, after which treatment the free fatty acids are recovered. The esterification is carried out in any usual and convenient manner, for example by refluxing the initial material with three times the theoretical quantity of a monohydric alcohol, preferably in the presence of about 5 per cent by weight of the alcohol of sulphuric acid or like dehydrating agent. If the esterification is carried out with glycerol, it should be used in quantity corresponding to that required for the production of triglycerides, the reaction being carried out at a pressure of 20 millimetres of mercury and at 170-230 DEG C. The initial material may be purified by pretreatment with a dilute mineral acid or a bleaching earth, or by emulsification with water or an agent capable of precipitating mucilaginous matter, such as a solution of acetic acid, phosphoric acid, alum, or trisodium phosphate. Examples of the treatment of acid train oil, train oil fatty acids, and soapstock fatty acids are given. Specifications 262,134, [Class 91, Oils &c.], 306,453, 322,496, [both in Class 2 (iii), Dyes &c.], and 341,390, are referred to.ALSO:Improved fatty acids are produced from low quality animal and vegetable oils containing unsaturated fatty acids by esterifying the unsaturated acids with an aliphatic alcohol, then polymerizing by heating to say 200-300 DEG C., but not to the boiling point, if desired while passing through a current of inert gas, with or without reduced pressure, and finally splitting the polymerized substances, after which treatment the free fatty acids are recovered. The esterification is carried out in any usual and convenient manner, for example by refluxing the initial material with three times the theoretical quantity of a monohydric alcohol, preferably in the presence of about 5 per cent by weight of the alcohol of sulphuric acid or like dehydrating agent. If the esterification is carried out with glycerol, it should be used in quantity corresponding to that required for the production of triglycerides, the reaction being carried out at a pressure of 20 millimetres of mercury and at 170-230 DEG C. The initial material may be purified by pretreatment with a dilute mineral acid or a bleaching earth, or by emulsification with water or an agent capable of precipitating mucilaginous matter, such as a solution of acetic acid, phosphoric acid, alum, or trisodium phosphate. Examples of the treatment of acid train oil, train oil fatty acids and soapstock fatty acids are given. Specifications 262,134, 306,453, 322,496, [all in Class 2 (iii), Dyes &c.], and 341,390, [Group III], are referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3327530A GB370964A (en) | 1930-11-05 | 1930-11-05 | Process for the manufacture of improved fatty acids from low quality fatty oils and fats |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3327530A GB370964A (en) | 1930-11-05 | 1930-11-05 | Process for the manufacture of improved fatty acids from low quality fatty oils and fats |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB370964A true GB370964A (en) | 1932-04-05 |
Family
ID=10350806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3327530A Expired GB370964A (en) | 1930-11-05 | 1930-11-05 | Process for the manufacture of improved fatty acids from low quality fatty oils and fats |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB370964A (en) |
-
1930
- 1930-11-05 GB GB3327530A patent/GB370964A/en not_active Expired
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