Process for isolating and purifying diphenol by-products

Details Process for isolating and purifying diphenol by-products Process for isolating and purifying diphenol by-products

1979-04-26

1980-12-23

Chan, Nicky

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

568724, C07D31104

Patent

active

042409683

ABSTRACT:
A process is disclosed for isolating and purifying diphenol by-products to obtain an enriched chroman-I concentrate. The process includes slurrying a mixture of diphenol by-products in a suitable solvent system to form a solid, and then recovering, washing and drying the collected solid.

REFERENCES:
patent: 2845464 (1958-07-01), Luten, Jr.
patent: 3073868 (1963-01-01), Prahl et al.
patent: 3207795 (1965-09-01), Prahl et al.
patent: 4156098 (1979-05-01), Li

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