Process for the purification of sterols from hydrocarbon...

Details Process for the purification of sterols from hydrocarbon... Process for the purification of sterols from hydrocarbon...

2008-05-13

2008-05-13

Badio, Barbara P. (Department: 1617)

Organic compounds -- part of the class 532-570 series

Organic compounds

Cyclopentanohydrophenanthrene ring system containing

Reexamination Certificate

active

10931043

ABSTRACT:
The present invention describes a method for separating sterols from neutral substances comprising the sterols. The method generally starts with extracting a hydrocarbon fraction from neutral substances. The hydrocarbon fraction may be optionally washed with water. The neutral substances are separated from the hydrocarbon. The hydrocarbon fraction or the neutral substances are subjected to evaporation fractionating to obtain a sterol-rich fraction. The sterol-rich fraction is dissolved in a solvent, and the sterols are crystallized from the solvent. The obtained sterol crystals are separated from the solvent.

REFERENCES:
patent: 2530810 (1950-11-01), Christensen et al.
patent: 3691211 (1972-09-01), Donald
patent: 3887537 (1975-06-01), Harada et al.
patent: 4076700 (1978-02-01), Harada et al.
patent: 2866797 (1979-05-01), Manly et al.
patent: 4153622 (1979-05-01), Lamminkari et al.
patent: 4254024 (1981-03-01), Stewart et al.
patent: 6297353 (2001-10-01), Diaz et al.
patent: 6462210 (2002-10-01), Diaz et al.
patent: WO 99 16785 (1999-04-01), None
patent: WO 99 42471 (1999-08-01), None

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