Distillation: processes – separatory – With chemical reaction – Including step of adding catalyst or reacting material
Patent
1994-01-21
1996-01-30
Manoharan, Virginia
Distillation: processes, separatory
With chemical reaction
Including step of adding catalyst or reacting material
203 73, 203 80, 203DIG16, 549413, 552545, 554174, 554175, B01D 334, C07D31172
Patent
active
054878179
ABSTRACT:
A novel process for the recovery of tocopherols and sterols from natural, especially vegetable, sources. This process is especially a process for the separation of tocopherols and sterols from deodorizer sludges by distillation of these deodorizer sludges, in that prior to the distillation the sterols present in the deodorizer sludge are esterified with the fatty acids which are also present, the resulting mixture is distilled to obtain residual fatty acids and subsequently to obtain tocopherols, whereby the sterol esters formed in the esterification remain in the residue of this distillation, and then the tocopherols are isolated from the distillate and the sterols, after cleavage of their esters, are isolated from the distillation residue.
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Gould George M.
Hoffmann-La Roche Inc.
Johnston George W.
Kass Alan P.
Manoharan Virginia
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