Regeneration of chemical reconversion catalysts used in a cyclic process for the production of hydrogen peroxide and apparatus therefor
US4351820A · kind A · utility
5Cited by
3References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 11, 1980 |
| Grant date | Sep 28, 1982 |
| Priority date | — |
| Expiry date | Aug 11, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/584
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A process is disclosed for the regeneration, by thermal treatment, of used catalysts for a cyclical process for the production of hydrogen peroxide. According to the process, used aluminosilicate type catalyst is subjected to progressive heating up to a temperature between 700.degree. and 850.degree. C., in the presence of an oxidizing atmosphere circulating co-current to the catalyst being regenerated. The process can be carried out in a rotary furnace inclined to the horizontal by 0.7 to 1% and having radial fins on the lower section of its inner wall, and an adjustable diaphragm at its outlet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.