In situ aluminum passivation process
US4317713A · kind A · utility
11Cited by
9References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 19, 1980 |
| Grant date | Mar 2, 1982 |
| Priority date | — |
| Expiry date | May 19, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S502/521
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A passivation process for decreasing the poisonous effects from contamination by metals such as nickel, vanadium and/or iron that can occur during the catalytic conversion of hydrocarbon feedstocks containing such metals is disclosed. The process involves an in situ aluminum passivation for conversion catalysts containing an alumina-containing phase by means of soluble aluminum species contained in that alumina-containing phase.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.