FIELD: soap making. SUBSTANCE: clear vegetable (soybean and sunflower) oils are treated with 2-4% alkali solution in methanol at 65-75 C during 3-6 h observing methanol-to-oil ratio between 1:3 and 1:4. Resulting mixture of esters, fatty acid salts, glycerol, and methanol is settled. Emerged on the surface esters are separated and methanol is distilled off under vacuum (0.075-0.095 MPa) and temperature 70-90 C. EFFECT: improved detergent properties and lowered viscosity. 1 tbl
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Authors
Dates
2002-06-27—Published
2000-04-28—Filed