TITLE:
Flocculating Properties of Water-Soluble Polymer-Colloid Complexes of Aluminoxane Particles with Weakly Charged Cationic Polyelectrolytes
AUTHORS:
Stanislav Radchenko, Ivan Novakov, Philipp Radchenko, Cong Le Van, Elena Rybakova
KEYWORDS:
Polymer-Colloid Complexes of Aluminoxane Particles, Weakly Charged Cationic Polyelectrolytes, Kaolin, Flocculation
JOURNAL NAME:
Journal of Water Resource and Protection,
Vol.3 No.4,
March
29,
2011
ABSTRACT: The flocculating properties of polymer-colloid complexes (PCCs) formed via noncovalent interactions of positively charged aluminoxane particles (APs) with macromolecules of weakly charged cationic acrylamide copolymers from the Praestol and Organopol series have been studied. The PCCs that spontaneously formed during mixing of sols of a high-basicity aluminum polyhydroxochloride (APHC) with aqueous solutions of the copolymers exhibit high flocculating ability under the conditions of gravity sedimentation of the model kaolin dispersion with Сd = 8 g/dm3, and their efficiency exceeds both that of the copolymers and the earlier obtained PCCs with nonionogenic polyacrylamide (PAA). In contrast to weakly charged polycationites, the fully charged KF-99 polyelectrolyte does not form PCCs and the products of its mixing with APHC do not reveal an increased flocculating effect.