Process for isomerizing linear olefins to isoolefins
US6323384A · kind A · utility
18Cited by
34References
72Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 5, 1991 |
| Grant date | Nov 27, 2001 |
| Priority date | — |
| Expiry date | Jun 5, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C5/2775
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
This invention provides a process to convert linear alkenes such as butene-1 and butene-2 to methyl branched chain alkenes such as isobutylene using the hydrogen form of ferrierite. The hydrogen form of ferrierite has a pore size which allows the branched chain alkenes to form and diffuse out of the catalyst while reducing the formation of unwanted by-products, including dimers, trimers, aromatics and coke. This invention has been demonstrated with H-ferrierite in a laboratory scale reactor. Selectivities approaching 100% were demonstrated for isobutylene formation using H-ferrierite.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.