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1. WO2020111598 - METHOD AND APPARATUS FOR MANUFACTURING LITHIUM SULFATE SOLUTION FROM LITHIUM BEARING ORE

Publication Number WO/2020/111598
Publication Date 04.06.2020
International Application No. PCT/KR2019/015518
International Filing Date 14.11.2019
IPC
C01D 15/06 2006.01
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
DCOMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
15Lithium compounds
06Sulfates; Sulfites
CPC
C01D 15/06
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
DCOMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
15Lithium compounds
06Sulfates; Sulfites
Applicants
  • 주식회사 포스코 POSCO [KR]/[KR]
Inventors
  • 정선광 JEONG, Sun-Kwang
  • 서성모 SEO, Sung-Mo
  • 박성배 PARK, Sung-Bae
Agents
  • 특허법인 씨엔에스 C&S PATENT AND LAW OFFICE
Priority Data
10-2018-014936328.11.2018KR
Publication Language Korean (KO)
Filing Language Korean (KO)
Designated States
Title
(EN) METHOD AND APPARATUS FOR MANUFACTURING LITHIUM SULFATE SOLUTION FROM LITHIUM BEARING ORE
(FR) PROCÉDÉ ET APPAREIL DE FABRICATION D'UNE SOLUTION DE SULFATE DE LITHIUM À PARTIR DE MINERAI CONTENANT DU LITHIUM
(KO) 리튬함유 광석으로부터 황산리튬용액을 제조하는 방법 및 장치
Abstract
(EN)
The present invention relates to a method and an apparatus for manufacturing a lithium sulfate solution. Specifically, the present invention provides a method for manufacturing a lithium sulfate solution and an apparatus for manufacturing a lithium sulfate solution, the method comprising: a crushing step of crushing lithium bearing ore to an average particle size of 0.5 mm or less so as to obtain and collect fine powder; a ultrafine powder collecting step of collecting ultrafine powder, in the fine powder, scattered without being collected in the crushing step; a sintering step of changing the phase of fine powder ore comprising the collected fine powder and ultrafine powder by sintering while pneumatically conveying, by means of a gas, the fine powder ore; a calcination step of calcining the phase-changed fine powder ore with a sulfuric acid so as to obtain lithium sulfate; and a leaching step of leaching the solid lithium sulfate with water so as to obtain the lithium sulfate solution, wherein the gas flows in the direction opposite to the direction of the flow of the fine powder ore.
(FR)
La présente invention concerne un procédé et un appareil pour fabriquer une solution de sulfate de lithium. Plus précisément, la présente invention concerne un procédé de fabrication d'une solution de sulfate de lithium et un appareil de fabrication d'une solution de sulfate de lithium, le procédé comprenant : une étape de broyage consistant à broyer un minerai contenant du lithium jusqu'à une taille moyenne de particule de 0,5 mm ou moins de façon à obtenir et à collecter de la poudre fine ; une étape de collecte de poudre ultrafine consistant à collecter une poudre ultrafine, dans la poudre fine, dispersée sans être collectée à l'étape de broyage ; une étape de frittage consistant à modifier la phase de minerai de poudre fine comprenant la poudre fine collectée et la poudre ultrafine par frittage tout en transportant pneumatiquement, au moyen d'un gaz, le minerai de poudre fine ; une étape de calcination consistant à calciner le minerai de poudre fine à changement de phase avec un acide sulfurique de façon à obtenir du sulfate de lithium ; et une étape de lixiviation consistant à lixivier le sulfate de lithium solide avec de l'eau de façon à obtenir la solution de sulfate de lithium, le gaz s'écoulant dans le sens opposé au sens du flux du minerai de poudre fine
(KO)
본 발명은 황산리튬용액을 제조하는 방법 및 장치에 관한 것으로, 구체적으로 본 발명은 리튬함유 광석을 평균 입도 0.5mm 이하로 파쇄하여 미분을 획득 및 포집하는 파쇄단계; 상기 미분 중 상기 파쇄단계에서 포집되지 않고 비산된 극미분을 포집하는 극미분 포집단계; 포집된 상기 미분 및 극미분을 포함하는 미분광을 가스로 기송(氣送)하면서 소성에 의해 상전이시키는 소성단계; 상전이된 상기 미분광을 황산으로 배소하여 고체상의 황산리튬을 획득하는 배소단계; 및 상기 고체상의 황산리튬을 물로 침출하여 황산리튬 용액을 획득하는 침출단계를 포함하며, 상기 가스는 상기 미분광의 흐름과 역방향으로 흐르는 황산리튬용액을 제조하는 방법 및 황산리튬용액 제조 장치를 제공한다.
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