Process for producing finely divided limestone for sulfur oxide

Details Process for producing finely divided limestone for sulfur oxide Process for producing finely divided limestone for sulfur oxide

1986-09-08

1987-12-15

Heller, Gregory A.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Sulfur or sulfur containing component

423244, C01B 1700, B01J 800

Patent

active

047132264

ABSTRACT:
A process for providing finely divided limestone products. Limestone is abrasively ground in an aqueous media in the presence of added dissolved carbon dioxide or in the presence of a soluble acid-forming compound, the anion of which forms a soluble calcium compound, or in the presence of both dissolved carbon dioxide and an acid-forming compound.
A dry flue gas desulfurization process using the finely divided limestone product of the process of the invention is also provided.

REFERENCES:
patent: 2096030 (1937-10-01), Cooke
patent: 2718453 (1955-09-01), Beckman
patent: 3920800 (1975-11-01), Harris
patent: 3989195 (1976-11-01), Falcon-Steward
patent: 4219590 (1980-08-01), Shibazaki et al.
patent: 4272498 (1981-06-01), Faatz
Kinetic and Engineering Aspects on the Wet-Dry FGD Process, by Jonas Klingspor, Leientiste Thesis, Jun. 1983, Dept. of Chemical Engineering II, Lund Institute of Technology, Sweden.

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