Sea water lithium-recovery device and lithium-recovery station using coastal-water-based lithium-adsorption equipment and shore-based lithium-isolation equipment, and lithium desorption device using aeration

Patent metadata

Field	Value
Publication number	US-10385423-B2
Application number	US-201415021668-A
Country	US
Kind code	B2
Filing date	Aug 28, 2014
Priority date	Sep 12, 2013
Publication date	Aug 20, 2019
Grant date	Aug 20, 2019

Abstract

The present invention relates to a device for recovering lithium included in a solution such as sea water, and to a sea water lithium-recovery device and a lithium-recovery station using coastal-water-based lithium-adsorption equipment and shore-based lithium-isolation equipment and a lithium desorption device using aeration.

First claim

The invention claimed is:

1. A sea water lithium-recovery device using coastal-water-based lithium-adsorption equipment and shore-based lithium-isolation equipment for recovering lithium included in sea water, comprising:
a lithium-adsorption means positioned at a coast to adsorb the lithium included in the sea water;
a lithium-isolation means positioned at a shore or land adjacent to the shore and isolating the lithium adsorbed to the lithium-adsorption means to obtain the lithium; and
an adsorbed lithium moving means moving a portion to which the lithium is adsorbed in the lithium-adsorption means to the lithium-isolation means to supply the adsorbed lithium.

2. The sea water lithium-recovery device of claim 1 , wherein the adsorbed lithium moving means moves a lithium adsorbent to which the lithium is adsorbed along a line and supplies the lithium adsorbent to the lithium-isolation means.

3. A lithium-recovery device using coastal-water-based lithium-adsorption equipment and shore-based lithium-isolation equipment for recovering lithium included in sea water, comprising:
a lithium-adsorption means positioned at a coast to adsorb the lithium included in the sea water;
a high-concentration lithium solution preparing means positioned at the coast and isolating the lithium adsorbed to the lithium-adsorption means to be a high-concentration lithium containing solution;
a lithium-extraction means positioned at a shore or a land adjacent to the shore and supplied with the high-concentration lithium solution obtained by the high-concentration lithium solution preparing means to extract the lithium; and
a lithium solution supply means supplying the high-concentration lithium solution obtained by the high-concentration lithium solution preparing means to the lithium-extraction means.

4. The lithium-recovery device of claim 3 , wherein the lithium solution supply means includes a supply pipe connecting between the high-concentration lithium solution preparing means and the lithium-extraction means and a pump supplying the high-concentration lithium solution to the supply pipe.

5. The sea water lithium-recovery device of claim 1 , wherein the lithium-adsorption means includes:
a first electrode having a carrier of which a surface is coated with an adsorbent including manganese oxide;
a second electrode dipped in the sea water including the lithium, disposed to face the first electrode at a predetermined interval, and applied with electricity; and
a power supplier applying electricity to the first electrode and the second electrode and applying a negative electrode (−electrode) and a positive electrode (+electrode) to the first electrode and the second electrode, respectively.

6. The sea water lithium-recovery device of claim 2 , wherein the lithium-adsorption means includes:
a first electrode having a carrier of which the surface is coated with an adsorbent including manganese oxide;
a second electrode dipped in the sea water including the lithium, disposed to face the first electrode at a predetermined interval, and applied with electricity; and
a power supplier applying electricity to the first electrode and the second electrode and applying a negative electrode (−electrode) and a positive electrode (+electrode) to the first electrode and the second electrode, respectively.

7. The lithium-recovery device of claim 3 , wherein the lithium-adsorption means includes:
a first electrode having a carrier of which the surface is coated with an adsorbent including manganese oxide;
a second electrode dipped in the sea water including the lithium, disposed to face the first electrode at a predetermined interval, and applied with electricity; and
a power supplier applying electricity to the first electrode and the second electrode and applying a negative electrode (−electrode) and a positive electrode (+electrode) to the first electrode and the second electrode, respectively.

8. The lithium-recovery device of claim 4 , wherein the lithium-adsorption means includes:
a first electrode having a carrier of which a surface is coated with an adsorbent including manganese oxide;
a second electrode dipped in the sea water including the lithium, disposed to face the first electrode at a predetermined interval, and applied with electricity; and
a power supplier applying electricity to the first electrode and the second electrode and applying a negative electrode (−electrode) and a positive electrode (+electrode) to the first electrode and the second electrode, respectively.

Assignees

• Korea Inst Geoscience & Mineral Resources

Inventors

• Chung Kang Sup
• Kim Byoung Gyu
• Ryu Tae Gong
• Ryu Jung Ho
• Park In Su
• Hong Hye Jin

Classifications

• C02F1/28

  by sorption (using ion-exchange C02F1/42; sorbent compositions B01J) · CPC title

• C25C1/22

  of metals not provided for in groups C25C1/02 - C25C1/20 · CPC title

• C02F2001/46138

  Electrodes comprising a substrate and a coating · CPC title

• C02F2201/008

  Mobile apparatus and plants, e.g. mounted on a vehicle · CPC title

• C25C7/02

  Electrodes (consumable anodes for the refining the metals C25C1/00 - C25C5/00); Connections thereof · CPC title