Isolation of partially brominated diphenyl ether mixtures

Details Isolation of partially brominated diphenyl ether mixtures Isolation of partially brominated diphenyl ether mixtures

C - Chemistry, Metallurgy

07

C

C07C 43/29 (2006.01) C07C 41/40 (2006.01)

Patent

CA 2137086

2137086 9324434 PCTABS00028 This invention relates to a process for isolation of partially brominated diphenyl ether mixtures (''octabrom'') having an average bromine content of 7.2-8.5. The process comprises: (i) adding a C1-C4 alkanol to the Octabrom in solution in an organic solvent; (ii) maintaining the contact of the alkanol with Octabrom in the organic solvent for that period of time which is sufficient to allow the Octabrom to precipitate in crystalline form, making a slurry; and (iii) recovering the final Octabrom from the slurry.

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