Effect of carboxymethyl cellulose and ionic strength on stability of mineral suspensions in potash ore flotation systems.
The adsorption of sodium carboxymethyl cellulose from aqueous solutions varying in ionic strength from that of distilled water to 50% NaCl/KCl brine (about 3.5 mol/dm(3)) onto illite and dolomite has been studied. The purpose of this work was to investigate the solvency effects in the phenomena underlying the potash flotation process that is carried out in saturated brine. Based on viscosity measurements, the adsorption results were analyzed in terms of a simple model of polymer macromolecules in solution. Suspension stability measurements carried out concomitantly with adsorption tests showed the ranges of carboxymethyl cellulose concentration over which the tested suspensions either were aggregated or were restabilized.
Pawlik
M
M
Department of Mining and Mineral Process Engineering, The University of British Columbia, 517D-6350 Stores Road, Vancouver, Canada British Columbia V6T 1Z4, Canada.
Laskowski
J S
JS
Ansari
A
A
D000327:Adsorption; D002119:Calcium Carbonate / Q000737:chemistry*; D002266:Carboxymethylcellulose Sodium / Q000737:chemistry*; D008274:Magnesium / Q000737:chemistry*; D008903:Minerals / Q000737:chemistry*; D008906:Mining; D009994:Osmolar Concentration; D012965:Sodium Chloride; D013535:Suspensions / Q000737:chemistry; D014783:Viscosity
D008903:Minerals; D013535:Suspensions; C099089:illite; D012965:Sodium Chloride; D002119:Calcium Carbonate; D008274:Magnesium; D002266:Carboxymethylcellulose Sodium; C028042:calcium magnesium carbonate