Hexacoordinated ruthenium moderated production of hydrogen peroxide and sulfur from oxygen and hydrogen sulfide
US4207305A · kind A · utility
7Cited by
3References
13Claims
0Family size
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Key dates
| Filing date | Apr 27, 1979 |
| Grant date | Jun 10, 1980 |
| Priority date | — |
| Expiry date | Apr 27, 1999 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01B15/01
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A process of reacting in the liquid phase a hexacoordinated ruthenium(II) complex with oxygen in the presence of a source of hydrogen ions under conditions forming hydrogen peroxide and the corresponding hexacoordinated ruthenium(III) complex and reacting the hexacoordinated ruthenium(III) complex with hydrogen sulfide to form elemental sulfur and regenerate the hexacoordinated ruthenium(II) complex, the hexacoordinated ruthenium(III) complex having a reduction potential of not more than +0.68. Five or six of the ligands of the ruthenium complexes are non-labile in both valence states.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.