96/05762 Hydrothermal reaction of Ca(OH)2 with quartz in coal

• Book ID: 104280975
• Publisher: Elsevier Science
• Year: 1996
• Weight: 183 KB
• Volume: 37
• Category: Article
• ISSN: 0140-6701
• DOI: 10.1016/s0140-6701(97)83183-9

✦ Synopsis

Measurements of wntact angles for water, glycerol, formamide and diiodomethane on the surfaces of four low-rank coals covered with nalkanes were studied.

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Demlnerallzatlon of a bltumlnous coal by froth flotation before obtaining activated carbons Rivera-Utrilla, J. et al., Carbon, 1996, 34, (7), 917-921. A Spanish bituminous coal has been demineralized by froth flotation. The effect of the particle size, solution pH, and the presence of electrolytes on the process yield has been investigated. The ash contents of the clean coal have been riduced by between 1.5-3 times with regard to the wrresponding feed coal. Three activated carbon samples have been obtained by steam activation of the floated coal.