Process for purification of lithium chloride
Patent 4274834 Issued on June 23, 1981. Estimated Expiration Date: 
April 11, 1999. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
April 11, 1999. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 2561439 2726138 3268290 3278260 3537813 InventorsAssigneeApplicationNo. 06/028974 filed on 04/11/1979US Classes:23/302R, Alkali metal and ammonium compounds423/179.5, Lithium423/499.3Lithium chlorideExaminersPrimary: Garris, BradleyAttorney, Agent or FirmInternational ClassesC01D 15/00 (20060101)C01D 15/04 (20060101) AbstractLithium chloride containing small amounts of inorganic and/or organic impurities is purified by heating the lithium chloride above about 200° C., cooling the compound to ambient temperatures and extracting it with isopropanol, separating the liquid and solid phases, removing the isopropanol and recovering lithium chloride of high purity.Field of SearchWith extraction |
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