Method for preparing a catalyst for oxidation of methanol to formaldehyde
US7572752B2 · kind B2 · utility
2Cited by
22References
8Claims
0Family size
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Key dates
| Filing date | Dec 16, 2005 |
| Grant date | Aug 11, 2009 |
| Priority date | — |
| Expiry date | Dec 16, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2523/00
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Process for preparing a catalyst for the oxidation of methanol to formaldehyde, comprising reacting iron powder and molybdenum trioxide in a Mo/Fe ratio from 1.5 to 5 in an aqueous suspension at temperatures from 20 to 100° C., and subsequently, optionally simultaneously, oxidizing the mixture with an oxidizing agent in a quantity equal to, or greater than the quantity required for the oxidation of the ferrous ion to ferric ion and to oxidize the molybdenum to the valence state 6.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.