Open system sulfurous acid generator
US6248299A · kind A · utility
Inventor
Key dates
| Filing date | Jul 7, 1997 |
| Grant date | Jun 19, 2001 |
| Priority date | — |
| Expiry date | Jul 7, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01B17/48
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A device which generates sulphurous acid in a simplified, efficient way comprises a burn chamber for burning sulphur to produce sulphur dioxide gas, a first conduit for conducting sulphur dioxide gas produced in the burn chamber, a second conduit for conducting water, a third conduit having means for bringing sulphur dioxide gas from the first conduit and water from the second conduit into contained co-directional flow in the third conduit to create sulphurous acid, a mixing tank to receive sulphurous acid, sulphur dioxide gas and water from the third conduit, and an absorption tower and a vent conduit for reacting unreacted sulphur dioxide gas with water. The system is open meaning sulphur dioxide gas in the system is not under significant pressure as the sulphur dioxide gas is conducted through the system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.