Phase separation of salt dispersions of clay with polyacrylamide flocculants

Effect of polyacrylamide (co)polymers on the properties and structure of floccules formed in the course of phase separation of a salt dispersion of clay was studied. It was shown that, with a binary system of unlike-charged copolymers, a sediment with high density and water-yielding capacity is form...

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Bibliographic Details
Published in:Russian journal of applied chemistry 2014-12, Vol.87 (12), p.1842-1848
Main Authors: Vorob’eva, E. V., Cherednichenko, D. V., Vorob’ev, P. D., Krut’ko, N. P., Astakhova, M. A.
Format: Article
Language:English
Subjects:
Chemistry
Chemistry and Materials Science
Chemistry/Food Science
Industrial Chemistry/Chemical Engineering
Inorganic Synthesis and Industrial Inorganic Chemistry
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Summary:Effect of polyacrylamide (co)polymers on the properties and structure of floccules formed in the course of phase separation of a salt dispersion of clay was studied. It was shown that, with a binary system of unlike-charged copolymers, a sediment with high density and water-yielding capacity is formed, which is necessary for the effective phase separation. The subsequent squeezing of the flocculated sediment to remove water leads to a local increase in the concentration of polymers in the solid phase, which raises the plastic strength of the sediment and improves the granulation conditions.
ISSN:1070-4272
1608-3296
DOI:10.1134/S1070427214120088