Effects of Desliming and Hydroacoustic Cavitation Treatment on the Flotation of Ultrafine Bituminous Coal

Branden Barry, Mark S. Klima, Fred S. Cannon

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7 Scopus citations

Abstract

Testing was conducted to evaluate the effects of desliming in combination with hydroacoustic cavitation (HAC) treatment on flotation when processing nominal -150 μm Illinois-basin bituminous coal, which was obtained from a refuse stream at an operating coal-cleaning plant. Cavitation was produced either by flow through an ultrasonic resonator chamber or enhanced cavitation by initial flow through a cavitation chamber followed by flow through the ultrasonic unit. Desliming was carried out using a 102 mm diameter hydrocyclone. Flotation tests were conducted using a laboratory flotation cell for different reagent amounts and flotation times. The results indicated that desliming improved flotation substantially. Moreover, in some cases, HAC treatment provided an additional benefit by liberating ultrafine inorganic material prior to desliming.

Original languageEnglish (US)
Pages (from-to)213-224
Number of pages12
JournalInternational Journal of Coal Preparation and Utilization
Volume37
Issue number4
DOIs
StatePublished - Jul 4 2017

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Fuel Technology
  • Geotechnical Engineering and Engineering Geology
  • Energy Engineering and Power Technology
  • Mechanical Engineering

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