ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,428,308, issued on Sept. 30.
"Production of strontium sulfate and strontium carbonate from brines" was invented by Steven Gluck (Lake Jackson, Texas) and Jason D Lalli (Washington, Pa.).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a process to produce high purity strontium sulfate and strontium carbonate from subterranean brines. The present disclosure also relates to chemical precipitations of subterranean brines to isolate strontium from divalent cations, such as calcium and barium. Such precipitations include the use of sulfate and subsequent solids separations and washing of the precipitate. In a latter step in the...