Process for the recovery of sulfur from a feed stock
US5681540A · kind A · utility
3Cited by
8References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 9, 1995 |
| Grant date | Oct 28, 1997 |
| Priority date | — |
| Expiry date | May 9, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/36
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for the recovery of sulfur from a feedstock, such as sour gas, including hydrogen sulfide, in which the feedstock is contacted with an aqueous mixture of ammonium nitrate, sulfuric acid and nitric acid to produce solid sulfur and gaseous hydrogen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.