Process for separating 3-hydroxy steroids or sterols from mixtur

Details Process for separating 3-hydroxy steroids or sterols from mixtur Process for separating 3-hydroxy steroids or sterols from mixtur

1982-07-12

1984-01-10

Roberts, Elbert L.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07J 900

Patent

active

044252757

ABSTRACT:
A process for separating 3-hydroxy steroids from sterol concentrate mixtures by combining a solution of the sterol-containing mixture in a cosolvent of a dialkyl ketone and a low molecular weight alcohol with a slurry or solution of calcium bromide. The complexed sterols are isolated by filtration and the sterols can be subsequently liberated from the complex by treatment with an aqueous/alcohol and isolated by filtration and drying. The complexed sterols are of large particle size which allows rapid filtration.

REFERENCES:
patent: 4057541 (1977-11-01), Weber et al.
patent: 4279828 (1981-07-01), Foster

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