Catalytic removal of hydrogen sulfides from liquid sulfur
US5030438A · kind A · utility
8Cited by
6References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 14, 1989 |
| Grant date | Jul 9, 1991 |
| Priority date | — |
| Expiry date | Mar 14, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01B17/0232
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The invention is a catalytic process for removing H.sub.2 S and hydrogen polysulfides from liquid sulfur. The process comprises mixing a heterocyclic compound with the liquid sulfur and removing the hydrogen sulfide from the liquid sulfur by contact with a gas which is inert to the liquid sulfur at the treating temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.