Research Institute of Industrial Science & Technology

Posco

Mpply Co., Ltd.

Woon Kyoung Park

Ki Young Kim

Uong Chon

Kwang Seok Park

Woo Chul Jung

Gi-Chun Han

Im Chang Lee

Dae Yeob Park

The present invention relates to a method for producing metallic lithium, and specifically a method for preparing lithium metal according to an embodiment of the present invention, comprises: preparing lithium phosphate; preparinge a mixture by adding a chlorine compound to the lithium phosphate; heating the mixture; obtaining lithium chloride by reacting the lithium phosphate and the chloride compound in the mixture; producing molten lithium metal by electrolyzing the lithium chloride; and recovering the molten lithium metal is disclosed.

Method for manufacturing metal lithium

The present invention relates to an apparatus for manufacturing a potassium compound and a method of recovering a potassium compound from a brine, and provides the apparatus for manufacturing the potassium compound, including: a continuous pre-treatment apparatus including a crushing portion, a pulverization portion, and a particle size separation portion for processing a mixed raw material salt obtained after lithium, magnesium, and calcium are extracted from a brine to have a particle size for easy separation and sorting; a continuous potassium compound lump recovering apparatus continuously separating and recovering the potassium compound from the pre-treated mixed raw material salt; a continuous potassium compound separating and sorting apparatus continuously separating and sorting potassium chloride and a glaserite (NaSO.3KSO) from the recovered potassium compound; and a continuous potassium sulfate conversion apparatus extracting potassium sulfate from the separated glaserite.

Apparatus for manufacturing potassium compound and method of recovering potassium compound from brine

Growing community of inventors

Pohang-si, South Korea

Woon Kyoung Park