MANUFACTURING METHOD FOR LITHIUM PHOSPHATE

The present invention relates to a method for manufacturing lithium phosphates comprising the following steps: making a first lithium containing solution pass through an adsorbent and adsorbing lithium to the adsorbent; making distilled water pass through the lithium-adsorbed adsorbent and obtaining...

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Bibliographische Detailangaben
Hauptverfasser:	LEE, HYUN WOO, WI, JIN YEOP, KIM, KI YOUNG, YANG, HEOK, PARK, WOON KYOUNG, KUK, SEUNG TAEK, PARK, KWANG SEOK
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COMPOUNDS THEREOF INORGANIC CHEMISTRY METALLURGY NON-METALLIC ELEMENTS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	The present invention relates to a method for manufacturing lithium phosphates comprising the following steps: making a first lithium containing solution pass through an adsorbent and adsorbing lithium to the adsorbent; making distilled water pass through the lithium-adsorbed adsorbent and obtaining a second lithium containing liquid which has higher concentration of lithium than the first lithium containing liquid; removing impurities from the second lithium containing liquid; and inputting a phosphorous supply material to the second lithium containing liquid of which the impurities are removed and obtaining lithium phosphates. Accordingly, lithium phosphates can be effectively manufactured from a lithium containing solution with the low lithium content. 본 발명은, 흡착제에 제1 리튬 함유 용액을 통과시켜 상기 흡착제에 리튬을 흡착시키는 단계, 상기 리튬이 흡착된 흡착제에 증류수를 통과시켜 제1 리튬 함유 용액 보다 리튬의 농도가 높은 제2 리튬 함유 용액을 수득하는 단계, 상기 제2 리튬 함유 용액에서 불순물을 제거하는 단계, 및 상기 불순물이 제거된 제2 리튬 함유 용액에 인 공급 물질을 투입하여 인산리튬을 수득하는 단계를 포함하는 인산리튬의 제조방법에 관한 것이다.