Catalytic Fluorination of HCFC-133a (1,1,1-Trifluoro-2-Chloroethane)

Cho DH; Kim YG; Chung MJ; Chung JS

Korean Journal of Chemical Engineering, Vol.14, No.6, 502-506, November, 1997

Catalytic fluorination of HCFC-133a was performed over metal oxide catalysts. Chromium oxide showed the best catalytic activity among several metal oxides tested. An increase in crystallinity with decreased surface area resulted in a decrease of catalytic activity for the fluorination reaction. Active phase of chromia is Cr-O-F-OH having a proper ratio of O/F and a high hydroxyl content. The hydroxyl content on the catalyst is strongly dependent on support material. The selectivity to HFC-134a is independent of the O/F ratio on the Cr surface.

Keywords:Chromium Oxide;Fluorination;1,1,1-Trifluoro-2-Chloroethane;1,1,1,2-Tetrafluoroethane

[References]

Bell SL, "Manufacture of Halogenated Compounds," U.S. Patent, 4,129,603 (1978)
Brunet S, Requieme B, Colnay E, Barrault J, Blanchard M, Appl. Catal. B: Environ., 5(4), 305 (1995)
Burwell RL, Haller GL, Taylor KC, Read JF, Adv. Catal., 19, 62 (1969)
Kim H, Kim HS, Lee BG, Lee H, Kim S, J. Chem. Soc.-Chem. Commun., 374 (1993)
Lee H, Jeong HD, Chung YS, Lee HG, Chung MJ, Kim S, Kim HS, J. Catal., 169(1), 307 (1997)
Lu J, Yang H, Chen S, Shi L, Ren J, Li H, Peng S, Chem. Lett., 41, 221 (1996)
Manzer LE, Rao VNM, Adv. Catal., 39, 329 (1993)
Mcdaniel MP, Burwell RL, J. Catal., 36, 394 (1975)
Molina ML, Rowland FS, Nature, 249, 810 (1974)
Potter SE, "Manufacture of Halogenated Compounds," U.S. Patent, 4,153,675 (1979)
Ruh RP, Davis RA, "Process for Fluorination of Haloalkanes using a Hydrogen Fluoride Activated Catalyst Containing Alumina, a Metal Fluoride and Basic Aluminum Fluoride," U.S. Patent, 2,744,148 (1956)
Scherer O, Korinth J, Frisch P, "Fluorination of Aliphatic Compounds," U.S. Patent, 3,752,850 (1973)
Scherer O, Korinth J, Frisch P, "Process and Catalyst for Fluorination Aliphatic Compounds," U.S. Patent, 3,859,424 (1975)
Schraml-Marth M, Wokaun A, Curry-Hyde HE, Baiker A, J. Catal., 133, 415 (1992)
Sobolev I, "Catalyst and Process for 1,1,1,2-Tetrafluoroethane by Vapor Phase Reaction," U.S. Patent, 4,792,643 (1988)

[1] Bell SL, "Manufacture of Halogenated Compounds," U.S. Patent, 4,129,603 (1978)

[2] Brunet S, Requieme B, Colnay E, Barrault J, Blanchard M, Appl. Catal. B: Environ., 5(4), 305 (1995)

[3] Burwell RL, Haller GL, Taylor KC, Read JF, Adv. Catal., 19, 62 (1969)

[4] Kim H, Kim HS, Lee BG, Lee H, Kim S, J. Chem. Soc.-Chem. Commun., 374 (1993)

[5] Lee H, Jeong HD, Chung YS, Lee HG, Chung MJ, Kim S, Kim HS, J. Catal., 169(1), 307 (1997)

[6] Lu J, Yang H, Chen S, Shi L, Ren J, Li H, Peng S, Chem. Lett., 41, 221 (1996)

[7] Manzer LE, Rao VNM, Adv. Catal., 39, 329 (1993)

[8] Mcdaniel MP, Burwell RL, J. Catal., 36, 394 (1975)

[9] Molina ML, Rowland FS, Nature, 249, 810 (1974)

[10] Potter SE, "Manufacture of Halogenated Compounds," U.S. Patent, 4,153,675 (1979)

[11] Ruh RP, Davis RA, "Process for Fluorination of Haloalkanes using a Hydrogen Fluoride Activated Catalyst Containing Alumina, a Metal Fluoride and Basic Aluminum Fluoride," U.S. Patent, 2,744,148 (1956)

[12] Scherer O, Korinth J, Frisch P, "Fluorination of Aliphatic Compounds," U.S. Patent, 3,752,850 (1973)

[13] Scherer O, Korinth J, Frisch P, "Process and Catalyst for Fluorination Aliphatic Compounds," U.S. Patent, 3,859,424 (1975)

[14] Schraml-Marth M, Wokaun A, Curry-Hyde HE, Baiker A, J. Catal., 133, 415 (1992)

[15] Sobolev I, "Catalyst and Process for 1,1,1,2-Tetrafluoroethane by Vapor Phase Reaction," U.S. Patent, 4,792,643 (1988)