Posco Co., Ltd

Research Institute of Industrial Science & Technology

Jin Yeop Wi

Hyun Woo Lee

Kwang Seok Park

Woo Chul Jung

Gi-Chun Han

Woonkyoung Park

Juyoung Kim

Sang Gil Lee

Young-Seon Ko

Ki Young Kim

Heok Yang

Seung Taek Kuk

Kee Uek Jeung

Sang Won Kim

Jung Kwan Park

Kiyoung Kim

Dong Soo Kim

Young Su Kwon

The present invention relates to a lithium compound manufacturing method comprising the steps of heat treatment of lithium-containing ore; roasting the heat-treated ore with sulfuric acid to prepare an acid product; mixing the acid product with leaching water to prepare a leachate; purifying the leachate; and adding a phosphorus supply material and a basic material to the purified leachate to obtain a solid lithium phosphate.

Method for producing lithium compound

The present invention relates to a method for producing lithium phosphate, comprising: passing a lithium-containing solution through an aluminum-based adsorbent to adsorb lithium on the aluminum-based adsorbent, passing the distilled water or an aqueous solution having a lower lithium concentration than the lithium-containing solution through the aluminum-based adsorbent on which the lithium is adsorbed to obtain a lithium-containing desorption solution, and putting a phosphorous supplying material in the lithium-containing desorption solution to obtain lithium phosphate.

Preparation method for lithium phosphate, preparation method for lithium hydroxide, and preparation method for lithium carbonate

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Pohang-si, South Korea

Jin Yeop Wi