Preparation of dehydroxlated supports
US5391531A · kind A · utility
15Cited by
5References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 13, 1994 |
| Grant date | Feb 21, 1995 |
| Priority date | — |
| Expiry date | Jun 13, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J35/633
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Dehydroxylated oxide (e.g. silica) particles are obtained by reacting oxide particles, having surface hydroxyl groups, with a dialkylcarbonate or diarylcarbonate. The resulting products have surface alkoxy or aryloxy groups and significantly reduced hydroxyl content. The treated oxide particles are especially suitable for use as catalyst supports, and especially as polyolefin catalyst supports.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.