CATALYST LIFE IMPROVEMENT FOR THE VAPOR PHASE MANUFACTURE OF 1-CHLORO-3,3,3-TRIFLUOROPROPENE

• Main Authors: DANIEL C. MERKEL, KONSTANTIN A. POKROVSKI, HSUEH SUNG HARRY TUNG
• Format: Patent
• Language: English; Spanish
• Published: 28.01.2013
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; METALLURGY; ORGANIC CHEMISTRY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; THEIR RELEVANT APPARATUS; TRANSPORTING

This invention achieves a catalyst life improvement for the catalyzed vapor phase reaction of 1,1,1,3,3-pentachloropropane with hydrogen fluoride to form 1-chloro-3,3,3-trifluoropropene by introducing an oxygen co-feed into the fluorination reactor. By introduction of an oxygen co-feed to the reactor feed, the catalyst life was extended a minimum of two-fold (2x). Esta invención logra una mejora en la vida del catalizador para la reacción en fase de vapor catalizada de 1,1,1,3,3-pentacloropro pano con fluoruro de hidrógeno para formar 1-cloro-3,3,3-trifluoro propeno introduciendo un oxígeno co-alimentado en el reactor de fluoración. Mediante la introducción de un oxígeno co-alimentado a la alimentación del reactor, la vida del catalizador se extendió como mínimo al doble (2x).