Method for recovering denitrating catalyst for ammonia catalytic reduction
US4656147A · kind A · utility
21Cited by
2References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 3, 1985 |
| Grant date | Apr 7, 1987 |
| Priority date | — |
| Expiry date | Apr 3, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S502/515
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method for recovering a denitrating catalyst for ammonia catalytic reduction which is characterized by treating the denitrating catalyst for ammonia catalytic reduction, in which a performance has deteriorated, with at least one selected from the group consisting of SO.sub.4.sup.2- compounds, sulfur compounds and sulfonic acid compounds in order to replenish the catalyst with a sulfur content.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.