Degumming process for triglyceride oils
AssigneeLever Brothers Company
InventorsHendrik Johan Ringers, Jacobus Cornelis Segers
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Abstract
Triglyceride oils are degummed according to a two-stage process, in which in the first step a substantially concentrated solution of an acid or an anhydride, having a pH of at least 0.5 as measured at 20.degree. C in a one molar aqueous solution, is dispersed in the oil, and in a second step 0.2 to 5 wt.% of water is dispersed in the mixture obtained and an aqueous sludge is separated from the oil after the water has been in contact with the oil-acid-mixture for at least 5 minutes at a temperature below 40.degree. C.
Claims16
A process for removing phosphatides from triglyceride oils which are substantially liquid at 40.degree. C. comprising the steps of dispersing an acid or acid anhydride in the oil, said acid or acid anhydride having a pH of from 0.5 to 7 as measured at 20.degree. C. in a one molar aqueous solution and said oil at a temperature of from 20.degree. to 100.degree. C., adjusting the temperature of the mixture to the range of from the lowest temperature at which the oil remains a liquid to 40.degree. C., dispersing from 0.2 to 5 percent by weight of water in the mixture;
- maintaining the temperature of the mixture of oil, acid and water from 5 minutes to several days;
- and, thereafter separating an aqueous sludge containing the phosphatides from the oil.
Dependencies are inferred from the claim text.