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Original Articles

Studies of the Alumina Suspension Stability in the Presence of Anionic Polymer—Influences of Polymer Molecular Weight, its Concentration and Solution pH

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Pages 7-16 | Received 15 Jul 2011, Accepted 15 Sep 2011, Published online: 14 Feb 2012
 

Abstract

The effect of an anionic polymer—polyacrylic acid (PAA) adsorption on the alumina (Al2O3) suspension stability was studied. The influence of the following parameters was examined: polymer molecular weight, its concentration and solution pH. Two methods were used to monitoring the suspension stability: turbidimetry and spectrophotometry. The conformational changes of macromolecules, both adsorbed and non-adsorbed, determine the stabilization—flocculation properties of the alumina suspension in the presence of the polymer.

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