Wetting of Coal by Nonionic Surfactant and Mixtures of Nonionic and Anionic Surfactants

descriptionPublicationkeyboard_double_arrow_right Article 01 Oct 1983 English Publisher:Oxford University Press (OUP)Journal:Bulletin of the Chemical Society of Japan, volume 56, pages 3,169-3,170 (issn: 0009-2673, eissn: 1348-0634,

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Authors: Kunio Esumi; Kenjiro Meguro; Hidemasa Honda;

doi: 10.1246/bcsj.56.3169

Wetting of Coal by Nonionic Surfactant and Mixtures of Nonionic and Anionic Surfactants

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Abstract

Abstract The rates of wetting of coals with various carbon contents by aqueous nonionic surfactants and mixtures of nonionic and anionic surfactants were examined. It was found that the wetting rate of each coal decreased with an increase of the length of oxyethylene chain in the nonionic surfactant. Further, the wetting rate of coal by anionic surfactant was enhanced by the addition of nonionic surfactant. This enhancement was most effective for coals with relatively low carbon content.

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Tokyo University of Science
Japan

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