CATALYTIC GAS PHASE FLUORINATION OF 1,1,2-TRICHLOROETHANE AND/OR 1,2-DICHLOROETHENE TO PRODUCE 1-CHLORO-2,2-DIFLUOROETHANE
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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| creator | PVSS, SRINIVAS VIJAYA, THOMAS BANDA, NARSAIAH PAZENOK, SERGII LUI, NORBERT PAMULAPARTHY, SHANTHAN RAO MADABHUSHI, SRIDHAR YADLA, RAMBABU |
| description | 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. |
| format | Patent |
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| language | eng ; fre ; ger |
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| 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 |
| title | CATALYTIC GAS PHASE FLUORINATION OF 1,1,2-TRICHLOROETHANE AND/OR 1,2-DICHLOROETHENE TO PRODUCE 1-CHLORO-2,2-DIFLUOROETHANE |
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