ALEXANDRIA, Va., June 9 -- United States Patent no. 12,285,740, issued on April 29, was assigned to ALBEMARLE Corp. (Charlotte, N.C.).
"Direct lithium extraction compositions and methods" was invented by Jesse DuPont (Zachary, La.), Keyur Shah (Waxhaw, N.C.), Sumitra Karki (Zachary, La.) and Charles Wesley Hamilton (Marvin, N.C.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Sorbent compositions for direct lithium extraction (DLE). The sorbent compositions include a lithiated aluminum component and an inorganic binder, and are in the form of shaped particles. The lithiated aluminum component makes up about 50% w/w to about 90% w/w of the sorbent compositions, whereas the binder makes up about 10% w/w to abou...