Supported catalyst

Details Supported catalyst Supported catalyst

1980-05-30

1981-12-01

Garvin, Patrick

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

252426, 252477R, B01J 3106

Patent

active

043035515

ABSTRACT:
A solid fluorocarbon polymer containing pendant sulfonic acid groups and supported on a solid substrate is prepared using an intermediate which is either thermoplastic or soluble to a measurable extent in a solvent. The intermediate is formed into the desired shape and then the intermediate is converted as desired to the sulfonic acid form for use as a catalyst. A preferred embodiment is a solid polymeric acid catalyst consisting essentially of a thin film, less than 2 mils thick, of a solid perfluorocarbon polymer containing pendant acid groups and supported on the surface of a solid impermeable substrate such as a heat conductive metallic composition.

REFERENCES:
patent: 3041317 (1962-06-01), Gibbs et al.
patent: 3169142 (1965-02-01), Knagos et al.
patent: 3177229 (1965-04-01), Leak et al.
patent: 3282875 (1966-11-01), Connolly et al.
patent: 3499797 (1970-03-01), Hooper
patent: 3624053 (1971-11-01), Gibbs et al.
patent: 3882093 (1975-05-01), Cavanaugh
patent: 4022847 (1977-05-01), McClure
patent: 4038213 (1977-07-01), McClure et al.
patent: 4052475 (1977-10-01), McClure et al.
"Innovation", vol. 4, No. 3 (Spring 1973) pp. 10-13, Pub. by DuPont.
Grot et al. "Perfluorinated Ion Exchange Members", paper presented to 141st National Meeting, The Electrochemical Soc., May, 1972.
"Nafion Perfluorosulfonic Acid Products", a Du Pont brochure, Feb. 1976.
"Nafion Perfluorosulfonic Acid Membranes for Use in Chlorine and Caustic Soda Production Systems", a Du Pont brochue, Aug. 1977.
"The Commercialization of Ion Exchange Membranes to Produce Chlorine and Caustic Soda", paper presented at the Electrochemical Soc. Fall Meeting, Oct. 1977.
"Prediction of the Molecular Structure of Nafion under Different Physicochemical Conditions", paper presented at Electrochemical Soc. Fall Meeting, Oct. 1977.
Ukihashi, "A Membrane for Electrolysis", Chemtech, Feb. 1980, pp. 118-120.

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