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96/05755 Demineralization of a bituminous coal by froth flotation before obtaining activated carbons

Publisher: Elsevier Science
Year: 1996
Weight: 183 KB
Volume: 37
Category: Article
ISSN: 0140-6701
DOI: 10.1016/s0140-6701(97)83196-7

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✦ Synopsis

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

66105755

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.

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By analyzing test results of a 2 ton/day PDU, it is concluded that coal with higher fuel ratio tends to have poorer reactivity. The quantitative effect of carbon recycle rate on gasification efficiency, such as carbon conversion efficiency and the amount product char. ## 96105929 Sulfur and nltro