Process for the preparation of iron/lithium -promoted catalysts for the production of maleic anhydride
US4670415A · kind A · utility
5Cited by
21References
15Claims
0Family size
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Key dates
| Filing date | Oct 28, 1985 |
| Grant date | Jun 2, 1987 |
| Priority date | — |
| Expiry date | Oct 28, 2005 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2523/00
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Iron/lithium promoted phosphorus-vanadium-oxygen catalysts for the production of maleic anhydride are prepared by contacting a substantially tetravalent vanadium-containing compound and a phosphorus-containing compound and a promoter component containing each of iron and lithium in a substantially anhydrous alcohol medium in the presence of anhydrous hydrogen chloride to form an iron/lithium promoted phosphorus-vanadium-oxygen catalyst precursor. The catalyst precursor is recovered, dried, roasted, formed into structures if structures are desired, and calcined.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.