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Microcel™ flotation columns

Microcel™ flotation columns

For higher concentrate grades

Microcel™ high recovery flotation columns are the standard in flotation technology. They are known for producing high concentrate grade, increase product recovery and improve plant profitability.
Typical applications for Metso Microcel™ flotation columns.
Typical applications

Microcel™ flotation columns can be used in various applications. They are suitable for exaple for processing: 

  • Copper
  • Molybdenum
  • Lead
  • Zinc
  • Iron
  • Industrial minerals (graphite, phosphate, fluorspar, talc, etc...)

Size range

Microcel™ flotation columns are custom designed to fit your specific application and needs.

  • Diameter range from 0.3 meters to 6 meters
  • Height from 7 meters to 15 meters
Features and benefits

Microcel™ flotation columns utilize so called sparger technology enhancing metallurgical performance by allowing an unprecedented flexibility on the grade-recovery curve.


  • Finer bubble size and homogenous bubble size distribution
  • Increased carrying capacity 
  • Maximum particle-bubble contacts within the static mixers
  • Effective reagent activation from the mechanical operation of the pump


  • Improved recovery
  • Optimized grade
  • Increased throughput
  • Enhanced particle-bubble contact
  • No plugging
  • On-line replacement
  • Reduced wear and maintenance.
  • Unique sparger technology
Features and benefits of Microcel™ flotation columns.
Check the video
Process overview

Microcel™ sparger consists of in-line static mixers and a centrifugal pump. Tailings slurry is pumped from the base of the columnthrough the static mixers, where air and slurry are mixed under high-shear conditions to create the bubble dispersion.

As the air-slurry mixture passes throgh the stationary blades located inside the mixer, the air is sheared into very small bubbles by the intense agitation.

Fine uniform bubble dispersions, with bubble size typically ranging from 400 to 1200 microns, are generated by the sparger system. The bubble suspension is introduced near the column base, and bubbles rise throgh the column collection zone.

Microcel™ standard column options

See how other companies have improved profitability and reduced risk!


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