Process for the purification of phenoxybenzoic acid derivatives

Details Process for the purification of phenoxybenzoic acid derivatives Process for the purification of phenoxybenzoic acid derivatives

C - Chemistry, Metallurgy

07

C

260/512.3, 260/4

C07C 205/59 (2006.01) C07C 201/16 (2006.01)

Patent

CA 1203811

ABSTRACT "PROCESS FOR THE PURIFICATION OF PHENOXYBENZOIC ACID DERIVATIVES" Process for recovering and purifying a crude phenoxybenzoic acid derivative or its salts, mixed with one or more isomers and/or by-products, the said process comprising bringing this derivative or its salt into contact with an inert solvent which is capable of selectively dissolving the undesirable isomers and/or by-products, and then separating the phenoxybenzoic acid derivative or its salt from the solution of undes- irable isomers and/or by-products.

408050

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