Recovering a caustic solution via calcium carbonate crystal aggregates
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United States of America Patent
Stats
-
May 22, 2018
Issued Date -
N/A
app pub date -
May 9, 2014
filing date -
Mar 13, 2013
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Techniques for converting a portion of a carbonate to hydroxide include receiving an alkaline carbonate solution that includes between 0.1M (moles per liter of solution) to 4.0M hydroxide and between 0.1M to 4.1M carbonate; reacting, in a slaking process, quicklime (CaO) and a low carbonate content fluid to yield a slurry of primarily slaked lime (Ca(OH)2); and reacting the Ca(OH)2 slurry and the alkaline carbonate solution to grow calcium carbonate (CaCO3) crystal aggregates of 0.0005 mm3 to 5 mm3 in volume in a fluidized-bed reactive crystallizer.
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International Classification(s)
- C01B:NON-METALLIC ELEMENTS; COMPOUNDS THEREOF
- B01J:CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS, CO....
- C01F:COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUM....
- B01D:SEPARATION
- C01D:COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, ....
- D21C:PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE ....
- 2014 Application Filing Year
- C01B Class
- 1554 Applications Filed
- 1323 Patents Issued To-Date
- 85.14 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 3 Citation Count
- C01B Class
- 31.00 % this patent is cited more than
- 7 Age
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