Mining & Minarels

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 nationwide, including those in Delaware; Maryland; Pennsylvania; Virginia; West Virginia and Washington, D.C.