JDC’s Research Program Greatly Improved the Hard Process

  • Improves phosphoric acid production rates by a factor of five in a given sized commercial kiln.
  • Substantially increases phosphate concentration in the kiln feed which results in the reduction of raw material grinding and other processing costs.
  • Improves phosphoric acid yield from a range of 70-85%  to the mid 90% range.
  • More efficiently uses coke.  Uses cheaper, high sulfur green petroleum coke instead of calcined coke.
  • Produces an oxidizing kiln off-gas which eliminates the need for an after-burner.
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KPA White Paper

History, Development, Status and Opportunities for Kiln Phosphoric Acid