Demineralization of asphaltite using free jet flotation


Asia-Pacific Journal of Chemical Engineering, vol.12, no.1, pp.42-49, 2017 (Journal Indexed in SCI Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 12 Issue: 1
  • Publication Date: 2017
  • Doi Number: 10.1002/apj.2052
  • Title of Journal : Asia-Pacific Journal of Chemical Engineering
  • Page Numbers: pp.42-49


© 2016 Curtin University of Technology and John Wiley & Sons, Ltd.The mineral matter and sulfur, which are present in varying amounts in asphaltites, are a major problem in the utilization of asphaltites as a fuel. Demineralization studies were carried out on an asphaltite sample containing 43.69% ash, 35.9% volatile matter, 19.7% fixed carbon, and 4.64% total sulfur. Laboratory scale free jet flotation cell with a volume of 30 L and a capacity of 2 m3/h was used, and all flotation tests were performed as collectorless. About 100 g/t isooctanol was used as a frother. The effects of particle size, the height of the nozzle pipe, turbulence zone, and laminar zone thickness were investigated during the tests. The flotation results indicated that a clean asphaltite having 19.66% ash content was produced with 66.4% combustible recovery. © 2016 Curtin University of Technology and John Wiley & Sons, Ltd.