Process for the production of high viscosity index lubricating oils from olefins
US4517399A · kind A · utility
7Cited by
8References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 9, 1984 |
| Grant date | May 14, 1985 |
| Priority date | — |
| Expiry date | Aug 9, 2004 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2229/42
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An improved process for the production of high viscosity lubricating oils obtained by reacting olefins over ZSM-5 type zeolites at elevated temperatures and pressures in order to obtain a liquid product and thereafter recovering a lube oil fraction from said liquid product is disclosed. The improvement resides in the use of large crystal ZSM-5 which has been found to enhance the viscosity index of lubes produced from olefins.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.