Production of elemental sulphur
US4041141A · kind A · utility
14Cited by
8References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 12, 1976 |
| Grant date | Aug 9, 1977 |
| Priority date | — |
| Expiry date | Feb 12, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S423/16
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Elementary sulfur is obtained from sulfur-containing materials which release sulfur oxides (SO.sub.x) in the presence of oxygen by fluidizing such materials in a bed with an oxygen-containing gas (e.g., air), and passing the resulting SO.sub.x -containing gases through a bed (preferably fluidized) of carbonaceous or carbon-containing solids (such as coke or coal) at an elevated temperature to reduce SO.sub.x to elemental sulfur, the bottom of the bed of carbonaceous or carbon-containing solids being at about the level of the top of the bed of sulfur-containing materials.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.