Iron ore beneficiation by selective flocculation

Details Iron ore beneficiation by selective flocculation Iron ore beneficiation by selective flocculation

B - Operations, Transporting

03

D

361/14, 209/3

B03D 1/02 (2006.01) B03D 3/06 (2006.01) C02F 1/54 (2006.01)

Patent

CA 1146677

27,?87 Title: IRON ORE BENEFICIATION BY SELECTIVE FLOCCULATION ABSTRACT OF THE DISCLOSURE Selective flocculation of iron ores is accomplished through the employment of partially carboxylated polyacryl- amides as the selective flocculant. The partially carboxy- lated polyacrylamides employed in the selective flocculation contain from about 20-65% carboxyl groups and are of a mo- lecular weight in excess of one million. The selective flocculation process performs a separation of iron ores pre- dominantly containing semitaconite, oxidized taconite and hematitic-goethitic jaspers from their associated siliceous gangue.

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