SU10947A1 - The method of obtaining fatty acids suitable for stearic production, by splitting the sulfonated cottonseed oil - Google Patents

Description

Cotton oil was recognized to pastoral unsuitable raw materials for stearic production for the following reasons: 1) it contains little solid fatty acids and 2) the mixture of fatty acids of cotton oil during freezing does not give the necessary crystalline structure, which makes it difficult to separate solid acids from liquid on hydraulic presses.

In the proposed method, cottonseed oil with a small admixture of bone fat (about 20%), when subjected to intensive sulphurization with simultaneous blowing of air, produces, during splitting, a mixture of fatty acids, which, after the usual distillation with water vapor, is a product hard (solidification point of about 42 °), that it can successfully replace fatty acids derived from expensive beef tallow, or palm oil, in stearic production. The fatty acids obtained from cottonseed oil by the above way are a well crystallized mass, which is much easier and more complete in its structure by pressing, into solid (stearin) and liquid (olein) parts than beef tallow fatty acids.

Example: 5200 vi of cottonseed oil and 1300 kg of bone fat are mixed in a vat and the mixture is washed with a boiling weak solution of sulfuric acid. The fat mixture, separated from the aqueous solution, is dried, heating to 115. Then, through the heated mass, air is blown non-simultaneously at the same time 240 vitriol, oils, are gradually poured into it. After seven hours of air blowing, the hot fat mass is mixed with 1500 kg of WATER and boiled soft from the fuzzy steam until the degree of splitting reaches 91-93 ° / o. The fatty acids are then dried by heating and distilled from a copper distillation cube with superheated water vapor. The mixture of distilled fatty acids thus obtained is a white crystalline mass.

easy, thanks to its structure, separation into liquid and solid parts i by pressing. The yield of technical stearin is about taken out. oil mixtures, while initially taking an oil mixture with 20% of bone fat before processing in this way contains only about 28% solid fatty acids.

The subject of the patent.

A method for producing fatty acids suitable for stearic production.

by splitting the sulfonated cotton and distilling the resulting fatty acids with water overheated steam, characterized in that a small amount of bone is added to the cotton oil to increase the yield of solid fatty acids and to obtain a mixture of fatty acids The mixture is subjected to intensive sulfonation with simultaneous blowing of air through the heated oil.