Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture – Sulfur or sulfur containing component
Patent
1979-09-25
1981-06-09
Vertiz, O. R.
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
Sulfur or sulfur containing component
423430, 241 1, B02C 1900, C01B 1100, C01F 524
Patent
active
042724988
ABSTRACT:
The present invention relates to a non-mechanical method of converting coarsely ground limestone to a very fine powder. A slurry of ground calcium carbonate or limestone is contacted with carbon dioxide gas at high pressure to convert the solids in the slurry to an unstable form. The carbon dioxide pressure is then instantaneously released to form a slurry of activated calcium carbonate particles substantially reduced in size. This activated calcium carbonate slurry may be used to scrub flue gases.
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Johnston et al., The Complete Solubility Curve of Calcium Carbonate, J.A.C.S., 38, pp. 975-983, (1916).
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Foster Wheeler Energy Corporation
Herguth, Jr. John J.
Naigur Marvin A.
Straub Gary P.
Vertiz O. R.
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