Mining & Minerals

Following are examples of projects EFI Group has completed for firms in the Mining & Minerals industry:

Calcium Carbonate

  • Conducted long-range expansion planning for calcium carbonate refining facility

Diatomaceous Earth


  • Designed custom extraction system for feldspar dewatering vats



  • Redesigned high-temperature limestone transport conveying pipeline
  • Investigated and reconciled the performance of fluidized hot oil limestone heater (two lines)


High Purity Silica

  • Developed wet resizing process and performed project scoping for high purity silica

Other Mining & Minerals Industry Projects

  • Reconciled and improved performance of a flash tube and a fluid energy dryer
  • Evaluated and recommended improvements for dust collection system for fluid energy dryer
  • Performed Raymond Mill throughput analysis
  • Developed strategy and system for balancing and maintaining the inventory of thickener tanks
  • Investigated substitution of HF acid for proprietary process
  • Investigated and developed approach for improving liquid ring vacuum blower installations

EFI Group is a manufacturing engineering firm practicing process engineering, process design, design engineering, manufacturing technology and engineering services. EFI Group is based in Baltimore, Maryland (MD) and serves clients throughout North America.