Pulse method for sulfur dioxide electrolysis
US5512144A · kind A · utility
25Cited by
3References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 28, 1995 |
| Grant date | Apr 30, 1996 |
| Priority date | — |
| Expiry date | Mar 28, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25B1/22
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process is provided for removing sulfur dioxide (SO.sub.2) from a waste gas stream by electrolysis using a pulsed electric current and recovering the sulfur values as sulfuric acid. The sources of the waste gas stream include effluent vent, flue or exhaust gases from power plants, sulfuric acid plants, ore roasters, and solid waste incnierators. The purpose of the process is to achieve economies of operation, provide a useful byproduct, and minimize environmental pollution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.