Storage-stable aqueous solutions of chlorine dioxide and methods for preparing and using them
US9045338B2 · kind B2 · utility
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Key dates
| Filing date | Feb 3, 2012 |
| Grant date | Jun 2, 2015 |
| Priority date | — |
| Expiry date | Feb 3, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/1352
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention is for extremely pure solutions of chlorine dioxide, methods for making such solutions and to compositions and methods for storing, shipping and using such solutions. Generally, the chlorine dioxide solutions of the invention are aqueous solutions containing about 2500 ppm or less of total impurities. The chlorine dioxide solution can be prepare by passing dilute highly pure chlorine gas through a bed of substantially solid sodium chlorite and contacting the resulting chlorine dioxide gas with a liquid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.