| 摘要 |
Solid mesoporous crystalline composition of diphosphonate-phosphite of a tetravalent metal, with a limited distribution of mesopores having the formula MÄ(O3P-R-PO3)1-x-y(HPO3)2x(O3P-R-PO3H2)2yÜ 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 -SO3H 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. <IMAGE> |
