Surface Chemical Control Of Ultra-Fine Coal To Reduce Residual Saturation

Society for Mining, Metallurgy & Exploration
J. G. Groppo
Organization:
Society for Mining, Metallurgy & Exploration
Pages:
11
File Size:
445 KB
Publication Date:
Jan 1, 1994

Abstract

Lowering of filter cake moisture of ultra-fine coal to a 20 percent level using conventional vacuum filtration could be achieved using a combination of metal ion and surfactants. Pretreating coal slurry with about 0.2 Kg/ton of a surfactant and 50 ppm of copper or 10 ppm of aluminum ions provided filter cake containing 22.8 percent moisture. The lowering of moisture is explained due to formation of hydrophobic micro-agglomerates which facilitates dewatering.
Citation

APA: J. G. Groppo  (1994)  Surface Chemical Control Of Ultra-Fine Coal To Reduce Residual Saturation

MLA: J. G. Groppo Surface Chemical Control Of Ultra-Fine Coal To Reduce Residual Saturation. Society for Mining, Metallurgy & Exploration, 1994.

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