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Influence of coagulants and flocculants on contact angles of coal surfaces

โœ Scribed by Jose Coca; J.L. Bueno; H. Sastre

Publisher
Elsevier Science
Year
1982
Tongue
English
Weight
280 KB
Volume
61
Category
Article
ISSN
0016-2361

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โœฆ Synopsis

Contact angles on both natural, fiat and prepared, polished surfaces of coal were measured for distilled water, solutions of several A13+ and Fe3+ coagulants, and commercial flocculants. The pH value was varied also. Contact angles increase up to coagulant and flocculant concentrations of -60 ppm and remain practically constant at higher concentrations.

Coagulants probably adversely affect flotation of coal fines whereas flocculants have an effect on contact angles similar to that of surfactants.

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