Research Institute of Industrial Science & Technology

Posco Co., Ltd

Posco

Mpply Co., Ltd.

Woonkyoung Park

Woo Chul Jung

Kwang Seok Park

Heok Yang

Juyoung Kim

Seung Taek Kuk

Hyun Woo Lee

Gi-Chun Han

Sang Won Kim

Jung Kwan Park

Young-Seon Ko

Ki Young Kim

Sang Gil Lee

Kee Uek Jeung

Kiyoung Kim

Jin Yeop Wi

Uong Chon

Chang Ho Song

Im Chang Lee

Sung Kook Park

Young-Su Kwon

Hyunwoo Lee

Dong Soo Kim

Young Su Kwon

A method of extracting lithium from a lithium-containing solution according to an exemplary embodiment of the present invention includes: obtaining a lithium chloride solution from the lithium-containing solution; and crystallizing and removing sodium chloride in the obtained lithium chloride solution.

Method of extracting lithium from lithium-containing solution

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

This disclosure relates to a method of preparing a lithium compound that includes preparing a lithium phosphate, mixing the lithium phosphate with sulfuric acid to obtain a mixture, converting the lithium phosphate into lithium sulfate through a reaction in the mixture, and separating the lithium sulfate in a solid phase, wherein in the step of converting the lithium phosphate into lithium sulfate through the reaction in the mixture, a sum concentration ([P+S] mol/L) of phosphorus (P) and sulfur (S) in a liquid phase of the mixture is greater than or equal to 5 mol/L.

Method of preparing lithium compound

A lithium adsorption molded body includes a lithium adsorbent and a copolymer including a repeating unit represented by and a repeating unit represented by in which Rand Rare each independently hydrogen or a C1 to C10 alkyl group.

Lithium-adsorptive molded object

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.

Manufacturing apparatus for lithium sulfate and manufacturing method therefor

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

Disclosed is a carbonation device including: a storage tank storing a carbonation subject solution; a droplet spray unit spraying the carbonation subject solution from the storage tank as droplets; a carbonation reaction tank disposed with the droplet spray unit and filled with a carbonation gas under a predetermined pressure to provide a slurry by a carbonation reaction of the droplet-sprayed carbonation subject solution with the filled carbonation gas; a carbonation gas supply unit supplying the carbonation gas into the carbonation reaction tank to maintain the carbonation gas in the carbonation reaction tank under the predetermined pressure; and a slurry outlet unit ejecting the slurry from the carbonation reaction tank to maintain the slurry formed in the carbonation reaction tank within a predetermined level, and a method of carbonation using the same.

Carbonation device and method of carbonation using the same

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Ansan-si, South Korea

Woonkyoung Park