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    • 8. 发明公开
    • 리튬 함유 용액 내 용존 물질의 추출 방법 및 이를 이용한 시스템
    • 提取锂离子液体溶解物质的方法及其使用方法
    • KR1020130081158A
    • 2013-07-16
    • KR1020120002183
    • 2012-01-06
    • 재단법인 포항산업과학연구원주식회사 포스코
    • 전웅김기영한기천이임창박운경장영석정기억송창호김대하
    • C01D15/00C01D15/08B01J8/20H01M10/052
    • C01F11/18C01B25/30C01B35/125C01D15/08C01F5/24C25B1/16
    • PURPOSE: A method for extracting dissolved substances from a solution containing lithium and a system based on the method are provided to cost effectively extract metal or metalloid compounds of high purity from a solution (salty water) containing lithium by carbonating calcium and magnesium cations in the solution and extracting lithium phosphate using a phosphorus supplying material. CONSTITUTION: A method for extracting dissolved substances from a solution containing lithium includes the steps: separating calcium cations from a solution containing lithium; separating magnesium cations from the solution without calcium cations; extracting sodium chloride by naturally evaporating the solution without calcium and magnesium cations; and precipitating lithium cations in the solution without the calcium and magnesium cations into lithium phosphate by supplying a phosphorus supplying material into the solution without the calcium and magnesium cations. A system for extracting dissolved substances from a solution containing lithium includes a first, second, and third separating unit, and an evaporating unit. The first separating unit extracts calcium cations from the solution. The second separating unit extracts magnesium cations in a filtrate from the first separating unit. The evaporating unit naturally evaporates a filtrate from the second separating unit. The third separating unit extracts lithium phosphate by precipitating lithium cations in the filtrate which is concentrated by the evaporating unit.
    • 目的:提供一种基于该方法从含锂的溶液和系统中提取溶解物质的方法,以经济有效地从含有锂的溶液(咸水)中提取高纯度的金属或准金属化合物,方法是将钙和镁阳离子碳酸化 溶液,并使用磷供应材料提取磷酸锂。 构成:从含有锂的溶液中提取溶解物质的方法包括以下步骤:从含有锂的溶液中分离出钙阳离子; 从没有钙阳离子的溶液中分离镁阳离子; 通过自然地蒸发不含钙和镁阳离子的溶液来提取氯化钠; 并将不含钙和镁阳离子的溶液中的锂阳离子沉淀成磷酸锂,将磷供应材料供给到不含钙和镁阳离子的溶液中。 从含有锂的溶液中提取溶解物质的系统包括第一,第二和第三分离单元和蒸发单元。 第一分离单元从溶液中提取钙阳离子。 第二分离单元从第一分离单元提取滤液中的镁阳离子。 蒸发单元自然地从第二分离单元蒸发滤液。 第三分离单元通过在蒸发单元浓缩的滤液中沉淀锂阳离子来提取磷酸锂。