Simultaneous separation and conversion to sulfur of H.sub.2 S
US4693881A · kind A · utility
7Cited by
1References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 17, 1985 |
| Grant date | Sep 15, 1987 |
| Priority date | — |
| Expiry date | Jul 17, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01B17/05
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
This invention is a regenerable process for converting H.sub.2 S to S by (1) reacting the H.sub.2 S with Fe.sub.2 (SO.sub.4).sub.3 to form S, FeSO.sub.4 and H.sub.2 SO.sub.4 ; (2) separating the S; oxidizing the FeSO.sub.4 and H.sub.2 SO.sub.4 with a gas containing oxygen in the presence of NO to form H.sub.2 O, Fe.sub.2 (SO.sub.4).sub.3 and a gas with a depleted oxygen content, separating the gas from the Fe.sub.2 (SO.sub.4).sub.3 and recycling the Fe.sub.2 (SO.sub.4).sub.3 to the S formation reaction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.