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公开(公告)号：EP3831777A1
公开(公告)日：2021-06-09
申请号：EP19843616.4
申请日：2019-08-02
发明人： KIM, Juyoung , KIM, Ki Young , PARK, Woonkyoung , PARK, Jung Kwan , JUNG, Woo Chul , PARK, Kwang Seok , LEE, Hyun Woo , KIM, Sang Won , YANG, Heok , KUK, Seung Taek
摘要： It is introduced that a device of manufacturing lithium sulfate comprising: a reaction body in which a reaction of lithium phosphate and sulfuric acid is performed, the reaction body being divided into an upper space and a lower space; a pressurizer for applying pressure to the inside of the reaction body; a stirrer disposed in the upper space for stirring the lithium phosphate and sulfuric acid to produce a mixture containing lithium sulfate and phosphoric acid; and a filter disposed inside the reaction body and separating the filtrate containing the phosphoric acid into the lower space by filtering the mixture.
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2.发明公开METHOD FOR MANUFACTURING LITHIUM HYDROXIDE AND LITHIUM CARBONATE, AND DEVICE THEREFOR 审中-公开制造氢氧化锂和碳酸锂的方法及其装置
公开(公告)号：EP3290393A1
公开(公告)日：2018-03-07
申请号：EP16786799.3
申请日：2016-04-29
发明人： PARK, Sung Kook , PARK, Kwang Seok , LEE, Sang Gil , JUNG, Woo Chul , KIM, Ki Young , LEE, Hyun Woo
CPC分类号： C01D15/08 , B01D53/46 , B01D61/445 , B01D61/50 , B01D2311/25 , B01D2311/263 , C01D15/02 , C01D15/04 , C01P2006/80 , C25B1/14 , C25B1/20 , Y02W10/37
摘要： The present invention relates to a method for manufacturing lithium hydroxide and lithium carbonate, and a device therefor. The present invention provides a method for manufacturing lithium hydroxide, comprising: a step of dissolving lithium phosphate in an acid; a step of preparing a monovalent ion selective-type electrodialysis device disposed in the order of a cathode cell containing a cathode separator, a monovalent anion selective-type dialysis membrane for selectively permeating a monovalent anion, a monovalent cation selective-type dialysis membrane for selectively permeating a monovalent cation, and an anode cell containing an anode separator, injecting the lithium phosphate dissolved in the acid between the anode separator of the anode cell and the monovalent cation selective-type dialysis membrane, and between the cathode separator of the cathode cell and the monovalent anion selective-type dialysis membrane, respectively, and injecting water between the monovalent cation selective-type dialysis membrane and the monovalent anion selective-type dialysis membrane; a step of obtaining an aqueous lithium chloride solution, and at the same time, obtaining a phosphoric acid aqueous solution formed as a byproduct, by applying an electric current to the monovalent ion selective-type electrodialysis device; and a step of converting the obtained aqueous lithium chloride solution into an aqueous lithium hydroxide solution.
摘要翻译： 本发明涉及制造氢氧化锂和碳酸锂的方法及其装置。 本发明提供一种氢氧化锂的制造方法，其包括：将磷酸锂溶解于酸中的工序; 制备单价离子选择型电渗析装置的步骤，所述单价离子选择型电渗析装置按照阴极单元的顺序设置，所述阴极单元包含阴极隔板，用于选择性地透过单价阴离子的单价阴离子选择型透析膜，用于选择性地单价阳离子选择型透析膜 透过一价阳离子的阳极电解槽，以及包含阳极隔板的阳极电解槽，将溶解在酸中的磷酸锂注入到阳极槽的阳极隔板与一价阳离子选择型透析膜之间，以及阴极槽的阴极隔板与 分别单价阴离子选择型透析膜和单价阳离子选择型透析膜与单价阴离子选择型透析膜之间注入水; 通过向所述一价离子选择型电渗析装置通电，获得氯化锂水溶液，同时获得作为副产物形成的磷酸水溶液的步骤; 以及将所获得的氯化锂水溶液转化为氢氧化锂水溶液的步骤。
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公开(公告)号：EP3326974A1
公开(公告)日：2018-05-30
申请号：EP16792983.5
申请日：2016-05-11
发明人： PARK, Sung Kook , PARK, Kwang Seok , LEE, Sang Gil , JUNG, Woo Chul , KIM, Ki Young , LEE, Hyun Woo
CPC分类号： B01D61/445 , C01D15/00 , C01D15/02 , C01D15/08 , C01P2006/80
摘要： The present invention relates to a method for producing lithium hydroxide and lithium carbonate, wherein the lithium hydroxide and the lithium carbonate can be produced by a series of steps of: performing bipolar electrodialysis of a lithium-containing solution from which divalent ion impurities have been removed; concentrating lithium in the lithium-containing solution and at the same time, converting the lithium to lithium hydroxide; and carbonating the lithium hydroxide to obtain lithium carbonate.
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