Degumming process for triglyceride oils
First Claim
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1. A process for removing phosphatides from triglyceride oils which are substantially liquid at 40°
- 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°
C. in a one molar aqueous solution and said oil at a temperature of from 20°
to 100°
C., adjusting the temperature of the mixture to the range of from the lowest temperature at which the oil remains a liquid to 40°
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.
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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° 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° C.
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16 Claims
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1. A process for removing phosphatides from triglyceride oils which are substantially liquid at 40°
- 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°
C. in a one molar aqueous solution and said oil at a temperature of from 20°
to 100°
C., adjusting the temperature of the mixture to the range of from the lowest temperature at which the oil remains a liquid to 40°
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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
- 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°
Specification