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 inRussian journal of applied chemistry Vol. 87; no. 12; pp. 1842 - 1848
Main Authors Vorob’eva, E. V., Cherednichenko, D. V., Vorob’ev, P. D., Krut’ko, N. P., Astakhova, M. A.
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 01.12.2014
Subjects
Chemistry
Chemistry and Materials Science
Chemistry/Food Science
Industrial Chemistry/Chemical Engineering
Inorganic Synthesis and Industrial Inorganic Chemistry
Clay Dispersion
Potassium Chloride
Sodium Acrylate
Methyl Chloride
Floccule Structure
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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