KATALYTISK GASFASEFLUORERING AF 1,1,2-TRICHLORETHAN OG/ELLER 1,2-DICHLORETHEN FOR AT FREMSTILLE 1-CHLOR-2,2-DIFLUORETHAN

KATALYTISK GASFASEFLUORERING AF 1,1,2-TRICHLORETHAN OG/ELLER 1,2-DICHLORETHEN FOR AT FREMSTILLE 1-CHLOR-2,2-DIFLUORETHAN

The invention is directed to a catalyst for the gas phase fluorination of 1,1,2-trichloroethane and/or 1,2-dichloroethene with HF to give 1-chloro-2,2-difluoroethane which catalyst is prepared by co-depositing FeCl3 and MgCl2 on chromia-alumina, or co-depositing Cr(NO3)3 and Ni(NO3)2 on active carbo...

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Hauptverfasser: VIJAYA, Thomas, BANDA, Narsaiah, PAZENOK, Sergii, LUI, Norbert, YADLA, Rambabu, PAMULAPARTHY, Shanthan Rao, MADABHUSHI, Sridhar, PVSS, Srinivas
Format: Patent
Sprache:dan
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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
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Zusammenfassung:The invention is directed to a catalyst for the gas phase fluorination of 1,1,2-trichloroethane and/or 1,2-dichloroethene with HF to give 1-chloro-2,2-difluoroethane which catalyst is prepared by co-depositing FeCl3 and MgCl2 on chromia-alumina, or co-depositing Cr(NO3)3 and Ni(NO3)2 on active carbon, or by doping alumina with ZnCl2, and to a process for the preparation of 1-chloro-2,2-difluoroethane comprising a catalytic gas phase fluorination of 1,1,2-trichloroethane and/or 1,2-dichloroethene wherein one of the catalysts according to claim 2 or 3 is used.