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:
A3
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)
HAN GI CHUN (KR)
KIM KI HONG (KR)
SONG CHANG HO (KR)
KIM KI YOUNG (KR)
HAN GI CHUN (KR)
KIM KI HONG (KR)
SONG CHANG HO (KR)
KIM KI YOUNG (KR)
Application Number:
PCT/KR2011/005030
Publication Date:
April 26, 2012
Filing Date:
July 08, 2011
Export Citation:
Assignee:
RES INST IND SCIENCE & TECH (KR)
CHON UONG (KR)
HAN GI CHUN (KR)
KIM KI HONG (KR)
SONG CHANG HO (KR)
KIM KI YOUNG (KR)
CHON UONG (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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