MUMBAI, India, Sept. 22 -- Intellectual Property India has published a patent application (202617071852 A) filed by Filmtec Water Usa, LLC on June 10, 2026, for Lithium Extraction Method.
Inventors include Yang, Cheng; Chu, Robert; Zhu, Xiangyang; Olsen, Matthew; and Chatterjee, Tirtha.
The application for the patent was published on September 18, 2026, under issue no. 38/2026.
Abstract: Provided are a process and apparatus for lithium ion extraction. The process includes passing a lithium-containing brine through a lithium-adsorbent, then passing a desorption media through the lithium-adsorbent at a temperature above 40°C to produce a lithium-enriched eluent. The lithium concentration of the eluent is further increased by passing it through a nanofiltration membrane and a reverse osmosis membrane. Preferably, the eluent is passed through these membranes more than once at a temperature above 40°C. The process is energy-efficient, because it is conducted entirely at temperatures above 40°C. Accordingly, there is no need to decrease the temperature of the lithium-enriched eluent before passing it through the nanofiltration membrane and the reverse osmosis membrane. Moreover, there is no need to increase the temperature of the nanofiltration reverse osmosis permeate before passing it through the lithium-adsorbent as a desorption media, nor is there a need to increase the temperature of the enriched lithium stream before lithium precipitation.
Disclaimer: Curated by HT Syndication.
