Catalysts for the treatment of gases containing various derivatives of sulphur
US3978004A · kind A · utility
15Cited by
9References
1Claims
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Key dates
| Filing date | Aug 1, 1974 |
| Grant date | Aug 31, 1976 |
| Priority date | — |
| Expiry date | Aug 1, 1994 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J35/635
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Catalysts for Claus reaction treatment of industrial gases containing hydrogen sulphide and sulphur dioxide in which the catalyst has a specific surface area of at least 80 sq.m./g and is composed of activated alumina and a compound of lanthanum, a lanthanide series metal of atomic number 58 to 71 or a metal of Group IIIB of the periodic classification of elements which is present, when calculated as the oxide, in an amount within the range of 1-20% by weight of the catalyst.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.