Mesoporous crystalline acid composition of a diphosphonate-phosp

Details Mesoporous crystalline acid composition of a diphosphonate-phosp Mesoporous crystalline acid composition of a diphosphonate-phosp

1997-10-02

1999-04-06

Nazario-Gonzalez, Porfirio

Organic compounds -- part of the class 532-570 series

Organic compounds

Heavy metal containing

556 13, 556 51, 556 54, 502162, C07F 700, B01J 3100

Patent

active

058920803

ABSTRACT:
Solid mesoporous crystalline composition of diphospho-nate-phosphite of a tetravalent metal, with a limited distribution of mesopores having the formula P--R--PO.sub.3 H.sub.2).sub.2y !
wherein: M is a tetravalent metal, R is a bivalent organic radical, x varies from 0.3 to 0.6, y varies from 0.05 to 0.3. The process for its production is described, together with its uses and a solid catalyst containing --SO.sub.3 H acid groups, active in the conversion processes of hydrocarbons, which can be obtained from said mesoporous crystalline composition by treatment with a sulfonicphosphonic or arylphosphonic acid, followed, only in the case of treatment with arylphosphonic acid, by sulfonation with a sulfonating agent.

REFERENCES:
patent: 5166380 (1992-11-01), Alberti et al.
patent: 5290746 (1994-03-01), Alberti et al.
Chemical Abstracts, vol. 119, No. 22, Nov. 29, 1993, AN 240222S.
Angewandte Chemie, vol. 32, No. 9, Nov. 1993, Giulio Alberti, et al. "Zirconium Phosphite (3,3',5,5'--Tetramethyl-Biphenyl)Diphosphonate, A Microporous, Layered, Inorganic-Organic Polymer".

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