Preparation of porous crystalline synthetic material comprised of silicon and titanium oxides
US4410501A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 29, 1982 |
| Grant date | Oct 18, 1983 |
| Priority date | — |
| Expiry date | Jun 29, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S423/22
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
This invention relates to a porous crystalline synthetic material constituted by silicon and titanium oxides, a method for synthesizing said material, and the use thereof as a catalyst. Said material is given the name titanium silicalite or TS-1, and corresponds to the following formula: EQU xTiO.sub.2.(1-x)SiO.sub.2 where x lies between 0.0005 and 0.04, preferably between 0.01 and 0.025. The material is prepared starting from a mixture constituted by a source of silicon oxide and a source of titanium oxide. The reaction takes place in the aqueous phase at a temperature of 130.degree. to 200.degree. C., and the solid product obtained is calcined in air at 550.degree. C. The TS-1 can be used for alkylation of toluene with methanol, or benzene with ethylene or ethanol, disproportioning of toluene to produce paraxylol, for cracking, hydrocracking, isomerization of n-paraffins and naphthenes, reforming, isomerization of substituted polyalkyl aromatics, disproportioning of aromatics, conversion of dimethylether and/or methanol or other alcohols to hydrocarbons, polymerization of compounds containing olefine or acetylene bonds, conversion of aliphatic carbonyl compounds into at least par…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.