Process for producing tetrabromobisphenol A

Details Process for producing tetrabromobisphenol A Process for producing tetrabromobisphenol A

1991-08-16

1992-08-11

Lone, Werren B.

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

Organic compounds

Oxygen containing

568722, 568723, 568729, C07C 3916, C07C 39367

Patent

active

051381036

ABSTRACT:
A process for producing tetrabromobisphenol A of high quality, which comprises brominating bisphenol A with bromine, wherein a solvent mixture comprising a hydrohalogenic acid and an alcohol, is used as the solvent for reaction. Also disclosed is a process for producing tetrabromobisphenol A of high quality, which comprises brominating bisphenol A with bromine in an alcohol, wherein the reaction temperature is set at a level of from -10.degree. to +20.degree. C., and water is added in an aging step.

REFERENCES:
patent: 4701568 (1987-10-01), McKinnie et al.
patent: 5068463 (1991-11-01), Walter

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