Sulphurous acid generator with air injector
US6500391B1 · kind B1 · utility
9Cited by
18References
3Claims
0Family size
Inventor
Key dates
| Filing date | Aug 5, 1999 |
| Grant date | Dec 31, 2002 |
| Priority date | — |
| Expiry date | Aug 5, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01B17/48
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
This invention presents a sulphurous acid generator which employs a combination of novel blending contact and mixing mechanisms which maximize the efficiency and duration of contact between sulphur dioxide gas and water enriched with air/oxygen to form sulphurous acid in an open nonpressurized system, without employing a countercurrent absorption tower.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.