Organic compounds -- part of the class 532-570 series – Organic compounds – Oxygen containing
Patent
1996-12-18
1998-07-07
Geist, Gary
Organic compounds -- part of the class 532-570 series
Organic compounds
Oxygen containing
568727, 568722, C07C 3912
Patent
active
057771804
ABSTRACT:
An improved process for the production of bisphenols is presented in which ketones and phenols are reacted in the presence of an acidic cationic exchange resin catalyst and a mercaptan cocatalyst. Prior to the reaction, alkyl alcohol is removed from the ketone stream. Cocatalyst is withdrawn from the reactor so that cocatalyst derivatives such as disulphide ions can be removed from the presence of the catalyst thereby reducing the possibility of catalyst poisoning.
Allan Edgar Donald
Blackbourn Robert Lawrence
Buechele James Laurel
June Raymond Lawrence
Geist Gary
Parsa Jafar
Shell Oil Company
Volyn Todd F.
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