Process and composition

Details Process and composition Process and composition

1991-04-08

1993-09-07

Lone, Werren B.

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

Organic compounds

Oxygen containing

568722, 568723, 568749, C07C 3784

Patent

active

052430936

ABSTRACT:
A method comprising purifying impure bisphenol-A by fractional melt crystallization in a falling film dynamic crystallizer.

REFERENCES:
patent: Re32241 (1986-09-01), Sayer
patent: 3621664 (1971-11-01), Sayer
patent: 4113974 (1978-09-01), Mark
patent: 4354046 (1982-10-01), Ludewig et al.
patent: 4927973 (1990-05-01), Dong et al.
Chemical Abstracts, vol. 2, Jul. 9, 1990, p. 2, left hand col., reference No. 6844B.
Sulzer Press Release 1.
Sulzer Press Release 2, German, plus translation.

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