Conversion of sodium bromide to anhydrous hydrobromic acid and sodium bisulfate
US7045109B2 · kind B2 · utility
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26Claims
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Key dates
| Filing date | Nov 19, 2004 |
| Grant date | May 16, 2006 |
| Priority date | — |
| Expiry date | Nov 19, 2024 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01D5/02
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Process for the conversion of sodium bromide to anhydrous hydrobromic acid and sodium bisulfate, said process with the following sequential steps: reaction of sodium bromide and sulfuric acid in a solution of water to produce hydrobromic acid and sodium bisulfate wherein the conversion of sodium bromide is greater than about 99%; adsorption of iron bromide onto a solid adsorbent; separation of hydrobromic acid and water from the sodium bisulfate; separation and drying of hydrobromic acid; and solidification of the sodium bisulfate into a flaked or granular form.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.