Process for purifying a gas containing hydrogen sulphide and sulphur dioxide
US6063357A · kind A · utility
5Cited by
10References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 11, 1997 |
| Grant date | May 16, 2000 |
| Priority date | — |
| Expiry date | Dec 11, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01B17/05
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A process for the production of elemental sulphur by reacting hydrogen sulphide with sulphur dioxide in a liquid reaction medium comprising an organic solvent for the two compounds, e.g., ethylene glycol, and containing at least one soluble catalytic basic compound, e.g., sodium salicylate, comprises bringing a gas mixture containing sulphur dioxide and hydrogen sulphide into contact with a co-current of the solvent containing the catalytic basic compound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.