Method for the preparation of chlorates from waste gas streams obtained from the production of chlorine dioxide
US5378447A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 8, 1993 |
| Grant date | Jan 3, 1995 |
| Priority date | — |
| Expiry date | Nov 8, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01B11/14
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A process is disclosed for producing a dilute solution of an alkali or alkaline earth metal chlorate from a chlorine and carbon dioxide waste gaseous stream. The process of the invention can be combined in a continuous process for the production of an alkali or alkaline earth metal chlorate for use in a chlorine dioxide generator for the production of chlorine dioxide in which the waste gaseous stream from the chlorine dioxide generator is converted to a dilute solution of an alkali or alkaline earth metal chlorate and passed to an electrochemical cell for the generation of an alkali or alkaline earth metal sodium chlorate, the product of the electrochemical cell being in turn passed to the chlorine dioxide generator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.