Sou Hu Cai Jing·2025-04-24 13:10Core Viewpoint - China Petroleum & Chemical Corporation (Sinopec) has applied for a patent related to lithium-ion sieve adsorbents, indicating a focus on lithium extraction technology and potential advancements in the field [1] Group 1: Patent Application - The patent titled "A lithium-ion sieve adsorbent and preparation method, lithium-ion sieve adsorbent product, and lithium-ion adsorption separation method" was applied for on October 2023 [1] - The lithium-ion sieve adsorbent consists of 50-90% lithium-ion sieve, 1-20% single-atom catalyst, and additives including binders and optional additives [1] - The invention demonstrates excellent lithium-ion adsorption and separation capabilities, achieving high lithium extraction rates [1] Group 2: Industrial Application - The lithium-ion sieve adsorbent, when used with persulfate elution agents, enhances lithium recovery and minimizes manganese loss during the desorption or regeneration process [1] - The method provided for lithium-ion adsorption separation is described as simple, efficient, and effective for industrial applications [1] Group 3: Company Overview - China Petroleum & Chemical Corporation was established in 2000, primarily engaged in petroleum, coal, and other fuel processing industries, with a registered capital of approximately 12.17 billion RMB [2] - Sinopec has invested in 257 companies and participated in 5,000 bidding projects, holding 5000 patent records and 45 trademark records [2] - Sinopec's research arm, Sinopec Petroleum Chemical Research Institute, was founded in 2022 with a registered capital of 300 million RMB, focusing on research and experimental development [2]