The influence of the sodium oleate adsorption on the behavior of calcite suspensions

✍ Scribed by Z. Sadowski

• Publisher: Elsevier Science
• Year: 1993
• Tongue: English
• Weight: 592 KB
• Volume: 48
• Category: Article
• ISSN: 0009-2509
• DOI: 10.1016/0009-2509(93)80018-l

✦ Synopsis

The effect of sodium oleate (SOL) on the behavior of calcite suspension has been investigated. The stability of dilute calcite suspension dramatically increases at (310^{-3} \mathrm{kmol} / \mathrm{m}^{3}) of sol. It correlates well with the vertical part of the adsorption isotherm of sol on the calcite surface. The hindered settling technique was used for the concentrated calcite suspension tests. The maximum of mean equivalent stokes radius corresponds with the onset of flocculation of mineral suspensions. Also, the Bingham yield values attains the maximum at the flocculation area of calcite suspension. The spherical agglomeration of calcite suşension occurs at high surfactant concentrations ( (310^{-3} \mathrm{kmol} / \mathrm{m}^{3}) ). Also the specific resistance of calcite cakes was investigated. The results show that the specific resistance of the calcite cake created after mechanical agitation is higher than that of the cake made by flocculation.