Polymer Configuration and Its Importance During the Flocculation Sequence.
Stanley-DA; Scheiner-BJ; Brown-PM
Soc Min Eng AIME Preprint 89-165 1989 :5 pages
The U.S. Bureau of Mines has developed an equation that describes the dewatering of clay slurries with polyethylene oxide. This dewatering equation is a"=kc + b where n, k, and b are empirical constants and c is the concentration of polymer solution used for dewatering. The minimum amount of polymer required for dewatering, a, is determined by titration of the clay slurry with a polymer solution. In this report, the dewatering equation is applied to data obtained for a polyacrylamide dewatering sequence. Fundamental similarities between the dewatering properties of clays and the viscosity of polymer solutions were observed. These similarities were explained by correlating an equation describing polymer configuration in solution with the dewatering equation. This correlation showed that amount of polymer required for dewatering and polymer solution viscosity are both consequences of the frictional interaction of entangled polymer coils.
Soc. Min. Eng. AIME Preprint 89-165, 1989, 5 PP.