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Quantitative Measurement of Polymeric Bonds Using Viscometric Techniques.
Stanley-DA; Webb-SW; Scheiner-BJ
Proc Consolidation and Dewatering of Fine Particles Conf 1982 Aug; :468-490
The amount of polyethylene oxide (peo) required to dewater calcium- exchanged montmorillonite is affected by shear stresses, both during mixing of the clay and polymer and during mechanical deformation of the flocculated mass to remove water. The Bureau of Mines measured changes in viscosity with time at a constant rate of shear for shear rates up to 350 per minute for peo-montmorillonite mixtures. The energy density of the bonds formed by the peo-montmorillonite complex then was calculated for two different bond systems. These different bond systems are present because the fundamental clay particles form flocs that are bridged to form aggregates of flocs. The implications of these results as they relate to peo dewatering of phosphatic clay waste are discussed.
Proc. Consolidation and Dewatering of Fine Particles Conf., August 10-12, 1982, PP. 468-490
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