Recovery of sulfur from gas streams containing sulfur and sulfur compounds in dilute concentration
US4250151A · kind A · utility
3Cited by
4References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 4, 1979 |
| Grant date | Feb 10, 1981 |
| Priority date | — |
| Expiry date | Sep 4, 1999 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01B17/05
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A process is disclosed for removing and recovering from gas streams the sulfur values of dilute concentrations of sulfur vapor, hydrogen sulfide, and sulfur dioxide which are not recoverable by previously known methods. The gas streams are scrubbed with aqueous suspensions of solid catalytic material which precludes formation of collodial sulfur in the aqueous suspension and collects the sulfur values as solid sulfur deposit, which is recovered during restoration of catalytic activity of the solid catalytic material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.