METHOD FOR ECONOMICAL EXTRACTION OF MAGNESIUM,BORON AND CALCIUM FROM LITHIUM BEARING SOLUTION

Title:

METHOD FOR ECONOMICAL EXTRACTION OF MAGNESIUM,BORON AND CALCIUM FROM LITHIUM BEARING SOLUTION

Document Type and Number:

WIPO Patent Application WO/2012/005548

Kind Code:

A2

Abstract:

The present invention relates to a method of economical extraction of magnesium, boron and calcium, while minimizing the loss of lithium, from a lithium bearing solution. More specifically, the present invention provides a method for economical extraction of magnesium, boron, and calcium, while minimizing the loss of lithium, from a lithium bearing solution comprising the steps of: (a) adding an alkali in the lithium bearing solution to precipitate magnesium hydroxide; (b) absorbing boron ions on the surface of the magnesium hydroxide by adjusting the pH to about 8.5 to about 10.5; and (c) simultaneously extracting magnesium and boron by filtering the magnesium hydroxide absorbed with the boron ions from the lithium bearing solution.

Inventors:

CHON UONG (KR)
KWON OH JOON (KR)
SOHN JIN GUN (KR)
HAN GI CHUN (KR)
KIM KI HONG (KR)
SONG CHANG HO (KR)
KIM KI YOUNG (KR)

Application Number:

PCT/KR2011/005030

Publication Date:

January 12, 2012

Filing Date:

July 08, 2011

Export Citation:

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Assignee:

RES INST IND SCIENCE & TECH (KR)
CHON UONG (KR)
KWON OH JOON (KR)
SOHN JIN GUN (KR)
HAN GI CHUN (KR)
KIM KI HONG (KR)
SONG CHANG HO (KR)
KIM KI YOUNG (KR)

International Classes:

C22B3/04; C01B35/04; C22B7/00; C22B26/22

Domestic Patent References:

WO2010006366A1

2010-01-21

Foreign References:

US6207126B1	2001-03-27
US4261960A	1981-04-14
US5219550A	1993-06-15

Attorney, Agent or Firm:

YOU ME PATENT AND LAW FIRM (649-10 Yoksam-dong Kangnam-Ku, Seoul 135-080, KR)

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