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    • 12. 发明公开
    • 액체-액체 추출장치, 그 장치를 사용한 다단 액체-액체 추출장치 및 희토류 원소의 다단 연속 추출 시스템
    • 液体萃取单元,使用单元的多液体液体萃取装置,以及用于稀土元素的多级连续萃取系统
    • KR1020130083850A
    • 2013-07-23
    • KR1020130002869
    • 2013-01-10
    • 신에쓰 가가꾸 고교 가부시끼가이샤
    • 스가하라히로토미노와타케히사
    • C22B3/26C22B59/00C22B7/00
    • C22B3/0005B01D11/04B01D11/0449B01D2011/002C22B59/00Y02P10/234
    • PURPOSE: A liquid-liquid extraction device, a multistage liquid-liquid extraction apparatus using the same, and a multistage continuous extraction system for rare earth elements are provided to reduce the size of the liquid-liquid extraction device with maintaining the extraction and separation efficiency of the rare earth elements. CONSTITUTION: A liquid-liquid extraction device comprises an extraction and separation tank (10), a water phase inlet (20), an organic phase inlet (30), an organic phase outlet (40), and a water phase outlet (50). The extraction and separation tank has a pair of side walls horizontally facing each other. The water phase inlet is arranged in the upper part of one side wall for receiving bubble type water phase. The organic phase inlet is arranged in the lower part of one side wall for receiving bubble type organic phase. The organic outlet is arranged in the upper part of the other side wall for discharging the separated organic phase. The water phase outlet is arranged in the lower part of the other side wall for discharging the separated water phase.
    • 目的:提供液 - 液萃取装置,使用该液 - 液萃取装置的多级液 - 液萃取装置,以及用于稀土元素的多级连续萃取系统,以减小液 - 液萃取装置的尺寸,同时保持萃取分离效率 的稀土元素。 构成:液 - 液萃取装置包括萃取和分离罐(10),水相入口(20),有机相入口(30),有机相出口(40)和水相出口(50) 。 提取分离槽具有水平面对的一对侧壁。 水相入口布置在一个侧壁的上部,用于接收气泡型水相。 有机相入口布置在一个侧壁的下部,用于接收气泡型有机相。 有机出口布置在另一侧壁的上部,用于排出分离的有机相。 水相出口布置在另一侧壁的下部,用于排出分离的水相。
    • 20. 发明授权
    • 용매추출공정을 이용한 지르코늄과 하프늄의 분리방법
    • 通过溶剂萃取方法分离锆和铪的方法
    • KR101386704B1
    • 2014-04-18
    • KR1020130012519
    • 2013-02-04
    • (주)포스코엠텍한국과학기술연구원
    • 이화영조병원이중기
    • C01G25/00C01G27/00
    • C22B3/0005Y02P10/234
    • A separation method of zirconium and hafnium according to an embodiment of the present invention comprises: an extraction step to manufacture a first extract solution having hafnium extracted by an acid extractant by stirring a first liquid to be stirred including the acid extractant and a crude liquid of an aqueous solution including zirconium, hafnium and sulfuric acid; and a recovery step to recover zirconium included in the first extract solution by manufacturing a citric acid solution after extraction having zirconium re-extracted from the first extract solution by a citric acid solution in the process of stirring a liquid to be stirred including the first extract solution and the citric acid solution. The present invention reduces the amount of the used extractant while greatly enhancing the separation effects of zirconium and hafnium which are difficult to separate, and the present invention can decrease hafnium content in zirconium to 50 ppm or less while increasing the zirconium recovery rate to 97% or greater via an additional zirconium recovery process.
    • 根据本发明实施方案的锆和铪的分离方法包括:提取步骤,通过搅拌包括酸萃取剂的第一待搅拌液体和制备具有酸萃取剂的粗液体制备具有通过酸萃取剂萃取的铪的第一提取溶液, 包括锆,铪和硫酸的水溶液; 以及回收步骤,通过在萃取后的柠檬酸溶液中制备柠檬酸溶液以回收第一提取溶液中的锆,所述柠檬酸溶液在搅拌包括第一提取物的搅拌液体的过程中,通过柠檬酸溶液从第一提取溶液中再提取的锆 溶液和柠檬酸溶液。 本发明在大大提高难以分离的锆和铪的分离效果的同时减少使用的萃取剂的量,本发明可以将锆的铪含量降低至50ppm以下,同时将锆回收率提高至97% 或更高。