Process for preparing finely divided limestone

Details Process for preparing finely divided limestone Process for preparing finely divided limestone

B - Operations, Transporting

02

C

241/136, 23/341

B02C 23/18 (2006.01) B01D 53/14 (2006.01) B01D 53/50 (2006.01) C01F 11/18 (2006.01)

Patent

CA 1228343

ABSTRACT OF THE DISCLOSURE A process is disclosed for providing finely divided limestone products. Limestone is abrasively ground in an aqueous medium 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 lime- stone product of the process of the invention is also provided.

466531

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