Zeolites derivatized with sulfonic acids

Details Zeolites derivatized with sulfonic acids Zeolites derivatized with sulfonic acids

1991-07-16

1993-04-20

Breneman, R. Bruce

Chemistry of inorganic compounds

Zeolite

502 60, 502 77, 502 85, 502168, 502 62, 423DIG27, C01B 3334

Patent

active

052040763

ABSTRACT:
The invention relates to sulfonic acid derivatives of crystalline porous materials having uniform pore size with an average pore size greater than 5 Angstroms or a Constraint Index of ten or less. In a preferred embodiment an acid treated crystalline porous material is reacted with a reagent to form the sulfonic acid derivative. The new products can be used as acid catalysts for acid catalyzed reactions. An example is the use of these materials in acid catalyzed etherification of methanol with isobutene.

REFERENCES:
patent: 3691099 (1972-09-01), Young
patent: 3980586 (1976-09-01), Mitchell
patent: 4478949 (1984-10-01), Kaeding
patent: 4683216 (1987-07-01), Farcasiu
patent: 4847223 (1989-07-01), Le Van Mao et al.
K. Tanabe et al., Stud. Surf Sci. Catalysis, vol. 44, pp. 99-110 (1988).

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