Phase transfer catalyst recovery

Details Phase transfer catalyst recovery Phase transfer catalyst recovery

B - Operations, Transporting

01

J

252/1.C

B01J 23/90 (2006.01) C07C 209/86 (2006.01) C07C 211/63 (2006.01)

Patent

CA 2040098

PHASE TRANSFER CATALYST RECOVERY ABSTRACT OF THE DISCLOSURE A quaternary ammonium salt catalyst is recovered from mixtures where the salt is in contact with an aqueous alkaline phase by adding water to completely dissolve the salt and adding base to cause the dissolved catalyst to separate as a hydroxide which forms an oily upper phase.

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