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An Explanation of Flocculation Using Lewis Acid-base Theory.

Authors
Brown-PM; Stanley-DA; Scheiner-BJ
Source
Soc Min Eng AIME Preprint 88-165 1988 :5 pages
Link
NIOSHTIC No.
10011844
Abstract
This paper describes a Bureau of Mines-developed method of dewatering clay slurries based on flocculation by high-molecular- weight polymers and water removal from the formed flocs using a trommel or hydrosieve. The exchange ion on the clays affects their dewaterability. Metal ions in solution and on the exchange sites of smectite clays are known to act as Lewis acids. Recent work has determined that these ions can be titrated with high-molecular- weight polymers. The relative acidity of the exchange ion and the basicity of the polymer determined by the new method give insight into the dewatering mechanism.
Publication Date
19880101
Document Type
OP;
Fiscal Year
1988
NTIS Accession No.
NTIS Price
Identifying No.
OP 18-88
NIOSH Division
TCRC;
Source Name
Soc. Min. Eng. AIME Preprint 88-165, 1988, 5 PP.
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