Molybdenum-exchanged crystalline aluminosilicate zeolite
US4388224A · kind A · utility
2Cited by
6References
25Claims
0Family size
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Inventor
Key dates
| Filing date | Jul 23, 1981 |
| Grant date | Jun 14, 1983 |
| Priority date | — |
| Expiry date | Jul 23, 2001 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J29/78
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Molybdenum is ion exchanged into a crystalline aluminosilicate zeolite, replacing metals such as sodium, calcium, and potassium, by contacting the zeolite with an aqueous solution containing molybdenyl cations (i.e., MoO.sub.2.sup.2+) and having a pH below 7.0 but higher than that which would substantially affect the crystallinity of the zeolite. The resulting zeolite, when calcined or sulfided, is useful as a catalyst for hydrocarbon conversion reactions, particularly with respect to the hydrodealkylation of toluene to benzene and methane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.