Derek J Presley

Title: Innovations of Derek J Presley in Cesium Extraction

Introduction

Derek J Presley is an accomplished inventor based in Ooltewah, TN (US). He has made significant contributions to the field of chemical engineering, particularly in the extraction of cesium from alkaline waste solutions. His innovative approach addresses critical environmental challenges associated with nuclear waste management.

Latest Patents

Derek J Presley holds a patent for a "Calixarene crown ether solvent composition and use thereof for extraction of cesium from alkaline waste solutions." This patent describes a solvent composition and method for effectively extracting cesium (Cs) from aqueous neutral and alkaline solutions. The method involves contacting a Cs-containing solution with a specific class of lipophilic calix[4]arene-crown ether extractants dissolved in a hydrocarbon-based diluent. The process allows for the recovery of cesium values from the extractant and the recycling of the solvent through a safe and inexpensive stripping process. This invention is particularly useful for treating alkaline nuclear tank wastes and decontaminating acidic reprocessing wastes containing cesium-137.

Career Highlights

Derek J Presley is associated with Lockheed Martin Energy Research Corporation, where he has been instrumental in advancing technologies related to nuclear waste management. His work has garnered attention for its potential applications in environmental remediation and safety.

Collaborations

Derek has collaborated with notable colleagues, including Bruce A Moyer and Richard A Sachleben, who have contributed to the development and refinement of his innovative solutions.

Conclusion

Derek J Presley’s contributions to the field of cesium extraction highlight the importance of innovation in addressing environmental challenges. His patented methods offer promising solutions for the safe management of nuclear waste, showcasing the impact of inventive thinking in the scientific community.