Philip Keller

Title: Innovations by Philip Keller in Rare Earth Element Beneficiation

Introduction

Philip Keller is an accomplished inventor based in Golden, DE (US). He has made significant contributions to the field of rare earth element beneficiation. His innovative methods and systems have the potential to enhance the efficiency of separating valuable minerals from unwanted materials.

Latest Patents

Keller holds a patent for "Compounds, methods, and systems for benefication of rare earth elements by flotation and gravity concentration." This patent discloses methods, devices, and systems designed to effectively separate carbonate gangue from bastnaesite without sacrificing significant rare earth oxide (REO) grade or recovery. The disclosed methods can achieve initial gravity REO recoveries exceeding 90% while rejecting a substantial portion of calcium from flotation concentrates.

Career Highlights

Keller's work has focused on utilizing centrifugal concentrators to beneficiate ultra-fine bastnaesite and calcite-bearing flotation concentrates. His innovative approaches can upgrade fine feeds containing 50.5% REO and 5.5% calcium to approximately 59% REO and 2.0% calcium. The systems he has developed may provide recovery levels of rare earth oxides greater than 70%, 80%, and even 90%.

Collaborations

Keller has collaborated with notable colleagues such as Carl Alexander Norgren and Nathanael Williams. Their combined expertise has contributed to the advancement of technologies in the field of mineral processing.

Conclusion

Philip Keller's innovative work in the beneficiation of rare earth elements showcases his commitment to advancing mineral processing technologies. His contributions have the potential to significantly impact the efficiency of resource recovery in the industry.