Process for treating a sulfurous fluid to form gypsum and magnesium carbonate
US10399862B2 · kind B2 · utility
3Cited by
2References
20Claims
0Family size
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Key dates
| Filing date | Jan 14, 2016 |
| Grant date | Sep 3, 2019 |
| Priority date | — |
| Expiry date | Jan 31, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K2003/265
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for treating a sulfurous fluid to form gypsum and magnesium carbonate, whereby the sulfurous fluid is scrubbed with a sequestrating agent to yield a scrubbed fluid, gypsum and magnesium sulfate. The flue gas desulfurized gypsum is isolated from the magnesium sulfate solution by filtration or centrifugation. The magnesium sulfate is reacted with a carbonate salt to produce a magnesium carbonate whereby the reaction conditions are controlled to control the properties of the magnesium carbonate produced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.