Nanobubble generation and its applications in froth flotation (part II): fundamental study and theoretical analysis

Maoming FAN, Daniel TAO, Rick HONAKER, Zhenfu LUO

Research output: Contribution to journalArticlepeer-review

148 Scopus citations

Abstract

Froth flotation is a commonly employed technology to improve the quality of raw coal and minerals. Coal and minerals particle size and surface hydrophobicity are two main parameters that affect three key steps in froth flotation process: particle-bubble collision, adhesion, and detachment. This paper fundamentally investigated the effects of nanobubble on coal and phosphate flotation. It has been found that the presence of nanobubble in flotation pulp could widen the coal and phosphate flotation particle size range, increase the particle surface hydrophobicity, and thus improve the coal and phosphate froth flotation recovery.

Original languageEnglish
Pages (from-to)159-177
Number of pages19
JournalMining Science and Technology
Volume20
Issue number2
DOIs
StatePublished - Mar 2010

Bibliographical note

Funding Information:
The authors wish to acknowledge the Florida Institute of Phosphate Research (FIPR), The Center for Advanced Separation Technologies (CAST) and the National Natural Science Foundation of China (Nos.50921002 and 90510002) for the financial support. Special thanks to the Director of CAST, Dr. Roe-Hoan Yoon and the project manager of FIPR, Dr. Patrick Zhang for their valuable advice and support.

Keywords

  • Zeta potential
  • cavitation
  • coal
  • froth flotation
  • nanobubble
  • phosphate

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Geotechnical Engineering and Engineering Geology
  • Energy Engineering and Power Technology
  • Geochemistry and Petrology
  • Electrical and Electronic Engineering

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