Method for regenerating a catalyst with a sulphurus active phase and contaminated by a mercury compound
US6100210A · kind A · utility
3Cited by
7References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 26, 1999 |
| Grant date | Aug 8, 2000 |
| Priority date | — |
| Expiry date | Mar 26, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/584
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention features a method for treating a supported catalyst with a sulphur compound based active phase and a mercury compound contaminated mineral support. This method consists in implementing the following steps: the said catalyst is contacted with a basic aqueous solution of at least one sulphide selected among alkaline metal sulphides, alkaline-earth metal sulphides or ammonium sulphide; then the catalyst is separated from the basic aqueous solution. At the end of this process, the treated catalyst shows the same characteristics as before its contamination by mercury.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.