Method and apparatus for introducing sulphur dioxide into aqueous solutions
US6689326B1 · kind B1 · utility
8Cited by
16References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 27, 2000 |
| Grant date | Feb 10, 2004 |
| Priority date | — |
| Expiry date | Jan 3, 2021 |
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 injects sulphur gases into aqueous solution or which maximize the efficiency and duration of contact between sulphur dioxide gas and water or aqueous solution to form sulphurous acid in an open nonpressurized system, without employing a countercurrent absorption tower. The present invention also incorporates a novel high temperature concrete for use in constructing portions of the present invention.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.