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- W2355242213 abstract "The performance of the Cr-Mg-Zn catalyst which is prepared by mechanical mixing for synthesis of 1,1,1,2-tetrafluoroethane(HFC-134a) from reaction of 1,1,1-trifluoro-2-choroethane(HCFC-133a) with AHF is investigated.BET,TG-DSC and XRD have been employed to characterize the catalyst.When tempreture is 300℃ and mole ratio of AHF to HCFC-133a is 7,the conversion of HCFC-133a and the selectivity of HFC-134a are 25.4% and 95.7%,respectively.The original catalytic activity cut to 80% after 90 days recation.We regenerate it in O2 and find that it shows higher activity than before.It can be explained that during the regeneration the metal fluorides hydrolyze and forme metal oxyfluoride which is the active species of the recation." @default.
- W2355242213 created "2016-06-24" @default.
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- W2355242213 date "2007-01-01" @default.
- W2355242213 modified "2023-09-23" @default.
- W2355242213 title "Synthesis of 1,1,1,2-tetrafluoroethane by Gas Phase Fluorination Over Cr-Mg-Zn Catalyst" @default.
- W2355242213 hasPublicationYear "2007" @default.
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