This inventor holds 2 USPTO granted patents. Top assignee: University of California. Active years: 2002.
Company Filing History:
Years Active: 2002
Title: Innovations by Leslie J Summers
Introduction
Leslie J Summers is a notable inventor based in Livermore, CA (US). He has made significant contributions to the field of molten salt reactors, particularly in the area of contaminant removal from spent salts. With a total of 2 patents, his work addresses critical environmental challenges associated with radioactive waste management.
Latest Patents
One of his latest patents is focused on "Actinide removal from spent salts." This method describes a process for removing actinide contaminants, such as uranium and thorium, from the spent salt of a molten salt oxidation (MSO) reactor. The spent salt is analyzed to determine the contaminants present and the carbonate concentration. The salt is then dissolved in water, and reagents are added to precipitate thorium as thorium oxide and uranium as either uranium oxide or a diuranate salt. The precipitated materials are filtered, dried, and packaged for disposal as radioactive waste, achieving about 90% removal of thorium and/or uranium by filtration. Additionally, salt solutions with a carbonate concentration greater than 20% can be dried and returned to the reactor for re-use, while those with lower concentrations require further clean-up using an ion exchange column.
Another significant patent by Summers is titled "Metals removal from spent salts." This invention outlines a method and apparatus for removing metal contaminants from the spent salt of an MSO reactor. Similar to his first patent, the spent salt is analyzed, dissolved in water, and treated with reagents to precipitate metal oxides or hydroxides. The filtration process removes over 90% of the metals and mineral residues, allowing for the potential re-use of salt solutions with a carbonate concentration greater than 20%. Solutions with lower concentrations also undergo further clean-up to ensure minimal contamination.
Career Highlights
Leslie J Summers is affiliated with the University of California, where he continues to advance research in the field of molten salt reactors. His innovative approaches to waste management have positioned him as a key figure in environmental safety and sustainability.
Collaborations
Some of his notable coworkers include Peter C Hsu and Erica H Von Holtz, who have collaborated with him on various projects related to molten salt technology.
Conclusion
Leslie J Summers is a pioneering inventor whose work in contaminant removal from spent salts has significant implications for environmental safety