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Adsorption and flotation studies with quartz: Part I. Adsorption of calcium, hydrogen and hydroxyl ions on quartz
Author(s) -
Ahmed S. M.,
Van Cleave A. B.
Publication year - 1965
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450430104
Subject(s) - adsorption , quartz , aqueous solution , chemistry , cationic polymerization , ion , inorganic chemistry , hydrogen , calcium , materials science , organic chemistry , metallurgy
Abstract The adsorption of calcium ions from aqueous solutions on − 65 + 200 mesh quartz has been measured using Ca 45 as a tracer. Results are given for initial Ca ++ ion concentrations of (4.2 to 11.5) × 10 −4 gm. ions/liter over the pH range 4 to 12. Changes in pH occurring during the adsorption have also been determined. The mechanisms of cationic adsorption on quartz in aqueous media, and the activation of quartz surfaces for flotation with anionic collectors are critically discussed.