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THE STABILITY OF SEMI-SOLUBLE SALT TYPE MINERAL SUSPENSIONS IN OLEATE SOLUTION

1989; Taylor & Francis; Volume: 10; Issue: 6 Linguagem: Inglês

10.1080/01932698908943196

1532-2351

Zygmunt Sadowski, Ross Smith,

Polysaccharides Composition and Applications

ABSTRACT Finely divided single and binary barite-carbonate mineral stabilities were studied as a function of oleate concentration at constant pH 10. The zeta potentials of the individual minerals were determined as functions of oleate concentration as were also the concentrations of appropriate cations in the supernatants of the single mineral suspensions. The effect of the presence of polyethylene oxide and sodium lignin sulfonate on the behavior of the suspensions was also determined. The conditions necessary for flocculation or dispersion of suspensions were interpreted in terms of oleate solution chemistry, the orientation of oleate ions at the solid solution interfaces and the influence of Ca2+, Mg2+ and Ba2+ ions in the system; all of these items as modified by the sometimes presence of polyethylene oxide or sodium lignin sulfonate.