THE EFFECT OF SONIC TREATMENT ON THE FLOTABILITY OF OXIDIZED COAL

被引：24
作者：
BUTTERMORE, WH
SLOMKA, BJ
机构：
[1] Ames Laboratory, Iowa State University, Ames
来源：
INTERNATIONAL JOURNAL OF MINERAL PROCESSING | 1991年 / 32卷 / 3-4期
关键词：
D O I：
10.1016/0301-7516(91)90071-P
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Microflotation tests using a Hallimond tube were performed to study the effects of sonic treatment on the flotability of oxidized coals. The experiments revealed a significant decrease in coal flotability as a result of oxidation in dry air at 150-degrees-C for 150 h. Sonication of the oxidized coals in aqueous slurry restored the flotability to a level near or exceeding that of fresh coal. Washing oxidized coal without sonication effected only minor improvements in flotabilities.
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页码：251 / 257
页数：7
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