History of Coarse Particle Flotation and the Eriez HydroFloat

This technical report details the development and application of the HydroFloat technology for coarse particle flotation, initiated by Eriez. The report outlines the origins of fluidized-bed flotation, beginning with observations made during a visit to a coal preparation facility. It describes the evolution of the HydroFloat device, including its initial pilot plant operations in the Florida phosphate industry and subsequent industrial applications. The report documents various successful implementations across different sectors, including phosphate and potash, highlighting significant improvements in recovery rates and operational efficiencies. It also discusses the technology's expansion into sulfide and base metal applications, supported by research confirming its effectiveness in recovering coarse particles. The report concludes with an overview of ongoing projects and the growing expertise in coarse particle flotation, emphasizing the collaborative efforts between Eriez and mining companies to optimize operations and reduce costs. The HydroFloat has been recognized for its potential to enhance mineral recovery while improving energy efficiency in processing.