Investigation of mechanism of ultrasound on coal flotation

被引：113

作者：

Ozkan, Safak G. ^{[1
]}

Kuyumcu, Halit Z.

机构：

[1] Istanbul Univ, Fac Engn, Min Engn Dept, TR-34320 Istanbul, Turkey

[2] Tech Univ Berlin, Dept Mech Proc Engn & Solid Proc, D-10623 Berlin, Germany

来源：

INTERNATIONAL JOURNAL OF MINERAL PROCESSING | 2006年 / 81卷 / 03期

关键词：

coal flotation; ultrasound; ultrasonic treatment; transducers; hard coal; coal slimes;

D O I：

10.1016/j.minpro.2006.07.011

中图分类号：

TQ [化学工业];

学科分类号：

0817 [化学工程与技术];

摘要：

Coal flotation studies were carried out in ultrasonically assisted flotation cells. Representative bard coal slime samples from Prosper-Haniel Coal Preparation Plant located in Bottrop, Ruhr Region of Germany were used for this purpose. A Wemco type flotation cell was fitted with transducers and tests were carried out at variable frequency and power. The reagent for coal flotation was Ekofol-440 with variable dosages during conventional and ultrasonic flotation experiments. The results showed that ultrasonic coal flotation yields more combustible recovery and lower ash values in concentrates than conventional flotation by using similar reagent dosages. These results are explained on the basis of efficient surface cleaning of the coal particles. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：201 / 203

页数：3

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