Process for treating a sulfurous fluid to form gypsum and magnesium carbonate
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United States of America Patent
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Sep 3, 2019
Grant Date -
Jan 4, 2018
app pub date -
Jan 14, 2016
filing date -
Jan 14, 2015
priority date (Note) -
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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.
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International Classification(s)
- C04B:LIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREO....
- C09C:TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBRO....
- D21H:PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED....
- C01F:COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUM....
- B01D:SEPARATION
- C08K:USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUB....
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