Gradiant to Build Lithium Production Facility Using Oilfield Produced Water / Latest / By mark The facility in the Marcellus Shale will be the world’s first to extract, concentrate and convert lithium in a fully integrated, end-to-end process from oilfield produced water, according to Gradiant. Share this: Click to share on Facebook (Opens in new window) Facebook Click to share on X (Opens in new window) X Related