Stannozeosilite/zirconozeosilite zeolites and catalytic hydroxylation of phenolics therewith
US5399336A · kind A · utility
30Cited by
6References
45Claims
0Family size
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Key dates
| Filing date | Jul 1, 1991 |
| Grant date | Mar 21, 1995 |
| Priority date | — |
| Expiry date | Jul 1, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S423/22
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Calcined silica/oxide zeolites, characteristically MFI stannozeosilites or zirconozeosilites, well adopted for catalyzing the H.sub.2 O.sub.2 hydroxylation of phenols or phenol ethers, have the formula (I): EQU (Si.sub.96-x T'.sub.x)0.sub.192 (I) in which x is a number ranging from 0.1 to 5.0 and T' is tetravalent tin or tetravalent zirconium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.