PROCESS TO CONTINUOUSLY PREPARE AN AQUEOUS MIXTURE OF (PERMITTIVY)-CAPROLACTAM AND (PERMITTIVY)-CAPROLACTAM PRECURSORS.

摘要

THIS CONTINUOUS PROCESS FOR PREPARING AN AQUEOUS MIXTURE OF Î-CAPROLACTAM AND 6-AMINOCAPROIC ACID AND/OR 6-AMINOCAPROAMIDE WHICH INVOLVES, AS THE REDUCTIVE AMINATION STEP, CONTINUOUSLY CONTACTING 5-FORMYLVALERIC ACID OR AN ALKYL 5-FORMYLVALERATE IN WATER AS SOLVENT WITH HYDROGEN AND AN EXCESS OF AMMONIA IN THE PRESENCE OF A RUTHENIUM ON CARRIER, AS A CATALYST, WHEREIN THE CARRIER IS AT LEAST ONE OF TITANIUM OXIDE OR ZIRCONIUM OXIDE. THE AQUEOUS MIXTURE CAN BE USED TO PREPARE Î- CAPROLACTAM.