Patents Assigned to CENTRAL ENERGY SCIENCE TECHNOLOGY LTD.
  • Patent number: 11371117
    Abstract: A process for multi-recycling, low-energy and high-purity extraction of lithium increases the purity and the concentration of lithium ions in produced solutions gradually through steps of adsorption/desorption ion exchange, extraction, impurity separation, agent separation and concentration, during which extractive liquids are returned, recycled and processed in previous steps for fewer dosages of chemicals and fewest discharged effluents, lower manufacturing costs than existing techniques, low specific energy consumption and consumable loss, and high-purity products with lithium ions.
    Type: Grant
    Filed: July 3, 2019
    Date of Patent: June 28, 2022
    Assignee: CENTRAL ENERGY SCIENCE TECHNOLOGY LTD.
    Inventor: Yi-Yang Xu