ALEXANDRIA, Va., Aug. 20 -- United States Patent no. 12,390,791, issued on Aug. 19, was assigned to KNAUF GIPS KG (Iphofen, Germany).

"Desalination of high chloride salt absorbed porous beads" was invented by Qinghua Li (Rolling Meadows, Ill.) and Xiaoyan Chen (Austin, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method of recovering desalinated activated alumina (AA) beads from a composition including salt laden (high salt absorbed) activated alumna (AA) beads and free anions and free cations, comprising the step of electrodialysis of the composition to reduce salt content of the activated alumina (AA) beads to produce a stream comprising the desalinated activated alumina (AA) beads."

The patent ...