Process for producing purified brominated aromatic compounds

Details Process for producing purified brominated aromatic compounds Process for producing purified brominated aromatic compounds

1985-10-25

1987-04-21

Rosenbaum, Mark

Solid material comminution or disintegration

Processes

With application of fluid or lubricant material

241 23, 568639, 570211, B02C 1912, C07C 4122

Patent

active

046590218

ABSTRACT:
A process for purifying crude brominated aromatic compounds such as decabromodiphenyl oxide containing impurities. The crude brominated aromatic compound undergoes a single processing step of grinding in the presence of heated air. The temperature is sufficient to effect substantial removal of impurities and yet remains below the melting point of the brominated aromatic compound.

REFERENCES:
patent: Re30778 (1981-10-01), Hahn et al.
patent: 2240718 (1941-05-01), Schiffman et al.
patent: 4327227 (1982-04-01), Ayres et al.

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