Method for treating aqueous streams containing low valent sulfur compounds
US6461521B1 · kind B1 · utility
0Cited by
5References
33Claims
0Family size
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Key dates
| Filing date | Nov 14, 2000 |
| Grant date | Oct 8, 2002 |
| Priority date | — |
| Expiry date | Nov 14, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S210/916
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A cost-effective broad temperature method for removing troublesome low valent sulfur compounds from aqueous streams. The process utilizes sulfur dioxide, oxygen and at least one metal catalyst (which may be added to or already entrained in the aqueous stream) to oxidize the low valent sulfur compounds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.