GB232361A - Improvements in the treatment of crude cotton oils and of the bye-products resulting from their refinement - Google Patents
Improvements in the treatment of crude cotton oils and of the bye-products resulting from their refinementInfo
- Publication number
- GB232361A GB232361A GB307024A GB307024A GB232361A GB 232361 A GB232361 A GB 232361A GB 307024 A GB307024 A GB 307024A GB 307024 A GB307024 A GB 307024A GB 232361 A GB232361 A GB 232361A
- Authority
- GB
- United Kingdom
- Prior art keywords
- borate
- oils
- acid
- aqueous solution
- sodium
- 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
- C11B—PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
- C11B3/00—Refining fats or fatty oils
- C11B3/02—Refining fats or fatty oils by chemical reaction
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Microbiology (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inks, Pencil-Leads, Or Crayons (AREA)
- Lubricants (AREA)
- Cosmetics (AREA)
Abstract
The colouring matter, Gossypol, is separated from cotton oils or from the by-products of their refinement with alkali, by treating the oil or acidified by-product with a metal borate that in aqueous solution is acid to phenol-phthalein, or with a mixture of a metal borate having an alkaline reaction and of a substance repressing alkaline hydrolysis in aqueous solution. Sodium decaborate alone, and alkali borate or magnesium borate acidified with boric acid or mixed with neutral metal salt, e.g. sodium chloride or with a polyhydric alcohol, e.g. glycerol and mannitol are suitable reagents.ALSO:Cotton oils and the fatty acids in the by-products of their refinement are decolorized by treatment with a metal borate which in aqueous solution is acid to phenol-phthalein, or with a mixture of a metal borate giving an alkaline reaction and of a substance repressing alkaline hydrolysis in aqueous solution. Sodium decaborate, alone, and alkali borate or magnesium borate acidified with boric acid or mixed with neutral metal salt or with glycerol, mannitol, or other polyhydric alcohol are suitable reagents. In an example, 1,000 lb. of crude cotton oil are agitated at 60 DEG C. with a solution of 10 lb. of sodium decaborate and 10 lb. of sodium chloride in 100 lb. of water, or with 100 lb. of an aqueous solution containing 5 lb. of borax, 5 lb. of boric acid, and 10 lb. of sodium chloride or magnesium chloride; after settling the oil is drawn off and the aqueous layer centrifuged. The purified oils may be further refined with caustic soda. Soap stock and black grease obtained in the usual refining of cotton oils are either (1) treated with excess of boric acid, preferably at 100 DEG C., separated from the aqueous layer, if necessary diluted with petroleum, trichlorethylene, or other solvent of oils, and centrifuged; or (2) acidified at 65 DEG C. or below with sulphuric acid, preferably in presence of sodium sulphite or other reducing agent, separated from the aqueous layer, if necessary diluted with solvent, treated with acid borate solution, and centrifuged. The colouring matter, Gossypol, may be used in place of logwood, cutch, fustic, and the like.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB307024A GB232361A (en) | 1924-02-06 | 1924-02-06 | Improvements in the treatment of crude cotton oils and of the bye-products resulting from their refinement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB307024A GB232361A (en) | 1924-02-06 | 1924-02-06 | Improvements in the treatment of crude cotton oils and of the bye-products resulting from their refinement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB232361A true GB232361A (en) | 1925-04-23 |
Family
ID=9751421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB307024A Expired GB232361A (en) | 1924-02-06 | 1924-02-06 | Improvements in the treatment of crude cotton oils and of the bye-products resulting from their refinement |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB232361A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2862943A (en) * | 1954-10-07 | 1958-12-02 | Gen Mills Inc | Purification of fatty acids |
-
1924
- 1924-02-06 GB GB307024A patent/GB232361A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2862943A (en) * | 1954-10-07 | 1958-12-02 | Gen Mills Inc | Purification of fatty acids |
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