METHOD FOR PRODUCING LITHIUM HYDROXIDE FROM LITHIUM PHOSPHATE

A method for producing lithium hydroxide according to an embodiment of the present invention comprises: a step for introducing at least one acid selected from the group consisting of hydrochloric acid, sulfuric acid, and nitric acid into a lithium phosphate slurry including lithium phosphate particl...

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Bibliographische Detailangaben
Hauptverfasser:	KIM, Kyunghoon, SON, Souhwan, LEE, Sang Min, LEE, Jong-Hak, KIM, Ki Young, CHOI, Jae Hyug
Format:	Patent
Sprache:	eng ; fre ; kor
Schlagworte:	CHEMISTRY COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM,RUBIDIUM, CAESIUM, OR FRANCIUM COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS COMPOUNDS THEREOF INORGANIC CHEMISTRY METALLURGY NON-METALLIC ELEMENTS
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Beschreibung
Zusammenfassung:	A method for producing lithium hydroxide according to an embodiment of the present invention comprises: a step for introducing at least one acid selected from the group consisting of hydrochloric acid, sulfuric acid, and nitric acid into a lithium phosphate slurry including lithium phosphate particles; and a step for introducing an alkali material into the lithium phosphate slurry into which the at least one acid has been introduced, and thereby converting the lithium phosphate slurry into a lithium hydroxide solution. Une méthode de production d'hydroxyde de lithium selon un mode de réalisation de la présente invention comprend : une étape d'introduction d'au moins un acide choisi dans le groupe constitué par l'acide chlorhydrique, l'acide sulfurique et l'acide nitrique dans une suspension de phosphate de lithium comprenant des particules de phosphate de lithium; et une étape consistant à introduire un matériau alcalin dans la suspension de phosphate de lithium dans laquelle au moins l'un desdits acides a été introduit, et à convertir ainsi la suspension de phosphate de lithium en une solution d'hydroxyde de lithium. 본 발명의 일 실시예에 따른 수산화리튬의 제조 방법은, 인산리튬 입자를 포함하는 인산리튬 슬러리에 염산, 황산 및 질산으로 이루어진 군에서 선택되는 하나 이상의 산을 투입하는 단계 및 상기 산이 투입된 인산리튬 슬러리에 알칼리 물질을 투입하여 수산화리튬 수용액으로 전환하는 단계를 포함한다.