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Polymer configuration and its importance during the flocculation sequence.

Authors
Stanley-DA; Scheiner-BJ; Brown-PM
Source
Miner Metall Process 1990 May; :114-117
Link
NIOSHTIC No.
10008210
Abstract
The U.S. Bureau of Mines has developed an equation that describes the dewatering of clay slurries with polyethylene oxide. This dewatering equation is an = 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 the amount of polymer required for dewatering and polymer solution viscosity are both the consequences of the frictional interaction of entangled polymer coils.
CODEN
MMPRE8
Publication Date
19900501
Document Type
OP; Journal Article
Fiscal Year
1990
NTIS Accession No.
NTIS Price
Identifying No.
OP 168-90
ISSN
0747-9182
NIOSH Division
TURC
Source Name
Minerals & Metallurgical Processing
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