Crystalline tantalum containing multinary metal oxide compositions, processes for using the composition
US6428765B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 22, 2000 |
| Grant date | Aug 6, 2002 |
| Priority date | — |
| Expiry date | Jan 23, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2006/82
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A new family of crystalline metal oxide compositions have been synthesized. These compositions are described by the empirical formula:AnTaMxM′yM″mOpwhere A is an alkali metal cation, ammonium ion and mixtures thereof, M is tungsten, molybdenum, or mixtures thereof. M′ is vanadium, antimony, tellurium, niobium and mixtures thereof, and M″ is titanium, tin, indium and gallium, aluminum, bismuth and mixtures thereof. M′ and M″ are optional metals. These compositions are characterized by having an x-ray diffraction pattern having at least one peak at a d spacing of about 3.9 å. These materials can be used in various hydrocarbon conversion processes such as dehydrogenation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.