Alkylation catalyst for C.sub.4 -C.sub.5 isoparaffins using at least one C.sub.2 -C.sub.6 olefin
US5731256A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 5, 1995 |
| Grant date | Mar 24, 1998 |
| Priority date | — |
| Expiry date | Jun 5, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2531/025
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention concerns a catalyst comprising a porous organic or mineral support, preferably silica, and an acidic phase containing B(OSO.sub.2 CF.sub.3).sub.3 and at least one acid selected from the group formed by sulphuric acid (H.sub.2 SO.sub.4) and trifluoromethane sulphonic acid (CF.sub.3 SO.sub.3 H), the support having been impregnated by said acidic phase, said catalyst being such that it is constituted essentially by particles with an average diameter of between 0.1 and 150 .mu.m, such that the support, prior to its impregnation with said acidic phase, has a total pore volume of between 0.5 and 6 cm.sup.3 per gram and said catalyst being characterized in that said acidic phase contains: PA1 between 0.1 and 70% by weight of B(OSO.sub.2 CF.sub.3).sub.3 ; PA1 between 0 and 90% by weight of H.sub.2 SO.sub.4 ; PA1 between 0 and 90% by weight of CF.sub.3 SO.sub.3 H. The catalyst is useful for the catalytic alkylation of isobutane and/or isopentane in the presence of at least one olefin containing 2 to 6 carbon atoms per molecule, preferably 3 to 6 carbon atoms per molecule.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.