ALEXANDRIA, Va., March 24 -- United States Patent no. 12,584,192, issued on March 24, was assigned to Schlumberger Technology Corp. (Sugar Land, Texas).
"Lithium purification and conversion" was invented by Gary W. Sams (Spring, Texas), Florence Binet (Houston), Rod William Shampine (Houston) and Dominic Vincent Perroni (Houston).
According to the abstract* released by the U.S. Patent & Trademark Office: "Lithium recovery processes are described using vaporization and conversion techniques. A vaporizer can be used to concentrate lithium and precipitate impurities. A conversion process can be used to replace anions in lithium bearing streams by adding a second anion and precipitating lithium in a salt with the second anion. Rotary separati...