Apparatus for purifying a gas containing hydrogen sulphide and sulphur dioxide
US6315961A · kind A · utility
1Cited by
10References
5Claims
0Family size
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Key dates
| Filing date | Feb 29, 2000 |
| Grant date | Nov 13, 2001 |
| Priority date | — |
| Expiry date | Feb 29, 2020 |
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.