PREPARATION AND USE OF CATIONIC HALIDES, SEQUESTRATION OF CARBON DIOXIDE
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United States of America Patent
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Issued Date -
Aug 27, 2009
app pub date -
Jul 5, 2006
filing date -
Jul 5, 2005
priority date (Note) -
Abandoned
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Abstract
A process is described for sequestering carbon dioxide. In the process, a carbonate, oxide or hydroxide of a divalent cation is reacted with the carbon dioxide and water and/or with a species resulting from the dissolution of the carbon dioxide in water, to form a hydrogen carbonate of the divalent cation. The carbonate, oxide or hydroxide of the divalent cation has a low solubility in water. The divalent cation of the hydrogen carbonate of the divalent cation thus formed is exchanged for a monovalent cation using an ion exchange medium, to produce a solution of a hydrogen carbonate of the monovalent cation.
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