Process for transformation of lignocellulosic biomass or cellulose by tungsten-oxide-based solid lewis acid catalysts and a metal that is selected from groups 8 to 11
US8877982B2 · kind B2 · utility
0Cited by
1References
20Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Jul 19, 2011 |
| Grant date | Nov 4, 2014 |
| Priority date | — |
| Expiry date | Jul 19, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C45/60
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention relates to a process for transformation of lignoceliulosic biomass or cellulose that uses tungsten-oxide-based heterogeneous catalysts that are dispersed on an oxide-based substrate, preferably with a base of oxide(s) of aluminum and/or zirconium and/or titanium and/or niobium and containing an element in the particular metallic state. The use of these catalysts makes it possible to obtain directly upgradable products containing three carbon atoms, in particular hydroxyacetone and propylene glycol with high selectivity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.