Process for producing alkylated hydroxyl-containing aromatic compounds
US6670513B1 · kind B1 · utility
Assignees
Inventors
Key dates
| Filing date | Dec 3, 1999 |
| Grant date | Dec 30, 2003 |
| Priority date | — |
| Expiry date | Dec 3, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2030/04
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An alkylated hydroxyl-containing aromatic compound is produced by isomerizing a normal alpha-olefin having from about 16 to about 30 carbon atoms in the presence of a first solid, acidic catalyst capable of inducing both olefin isomerization and skeletal isomerization to produce a mixture of isomerized olefin, then alkylating an hydroxyl-containing aromatic compound with the mixture of isomerized olefins in the presence of a second solid, acidic catalyst. The first solid, acidic catalyst can be SM-3, MAPO-11, SAPO-11, SSZ-32, ZSM-23, MAPO-39, SAPO-39, ZSM-22, SSZ-20, ZSM-35, SUZ-4, NU-23, NU-87, natural ferrierite or synthetic ferrierite. The second solid, acidic catalyst can be a sulfonic acid anionic ion exchange resin catalyst or an acidic clay.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.