SEFAR® X-Treme

New high-performance anti-scaling fabric for the Bayer process in alumina security filtration. No scaling after 80+ days. Benefit from stable flow, higher yield and reduced downtime.

Comparison of SEFAR X-Treme and SEFAR X-Scale fabrics after 82 days

No Scaling After 82 Days

After 82 days of operation, SEFAR® X-Treme (left) shows 0% reduction in air permeability, while SEFAR® X-Scale (right) shows 90% reduction of air permeability

Stable Flow, Higher Yield, Less Downtime

Scaling in security filtration clogs fabrics and cuts flow, driving frequent changeouts and downtime. SEFAR® X-Treme is an innovative fabric that resists scaling, keeps flow stable, and protects output. The result is higher productivity and less disruption to your refinery operations.

  • Constant flow rate over time (82 days)
  • +7% alumina produced in full-scale trials
  • 20% longer cloth lifetime
  • PFAS-free design

Download Technical Paper

  • media

    pdf, 637.75 KB

    SEFAR X-Treme ICSOBA Paper

    A new fabric material with anti-scaling properties for security filtration in the Bayer process. Luc Parent & Sandrine Forsoni, Sefar; Alain Boivin & Nicholas Turgeon, Rio Tinto


Enabling Life Essentials

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