Title:
METHOD FOR PREPARING ALUMINUM-DOPED COBALT CARBONATE HAVING FLAKE MORPHOLOGY AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2023/020040
Kind Code:
A1
Abstract:
Disclosed in the present invention are a method for preparing aluminum-doped cobalt carbonate having flake morphology and the use thereof. The preparation method comprises: first mixing a cobalt salt, an aluminum salt and a polyhydroxy compound to prepare a mixed solution, then mixing the mixed solution with an ammonium bicarbonate solution, controlling the pH, carrying out a reaction while heating and stirring to obtain a seed crystal solution, then adding the mixed solution and the ammonium bicarbonate solution to the seed crystal solution, controlling the pH, and carrying out a reaction while heating and stirring, wherein the solid content of the slurry is controlled at 20-40% in the reaction process until the particle size of particles in the slurry grows to a target value, and the solid phase is separated out, and washed and dried to obtain aluminum-doped cobalt carbonate having flake morphology. In the present invention, by adding the polyhydroxy compound and controlling the concentration of the system slurry, complete transformation of aluminum-doped cobalt carbonate crystal forms having different particle sizes can be achieved; the prepared aluminum-doped cobalt carbonate has better uniformity, regular morphology, uniform distribution of aluminum, no obvious aluminum enrichment, no micro powders, and a concentrated particle size distribution.
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Inventors:
LU XINGHUA (CN)
LI CHANGDONG (CN)
RUAN DINGSHAN (CN)
LIU GENGHAO (CN)
CAI YONG (CN)
LI BIN (CN)
LI CHANGDONG (CN)
RUAN DINGSHAN (CN)
LIU GENGHAO (CN)
CAI YONG (CN)
LI BIN (CN)
Application Number:
PCT/CN2022/092458
Publication Date:
February 23, 2023
Filing Date:
May 12, 2022
Export Citation:
Assignee:
GUANGDONG BRUNP RECYCLING TECHNOLOGY CO LTD (CN)
HUNAN BRUNP RECYCLING TECH CO LTD (CN)
HUNAN BRUNP EV RECYCLING CO LTD (CN)
HUNAN BRUNP RECYCLING TECH CO LTD (CN)
HUNAN BRUNP EV RECYCLING CO LTD (CN)
International Classes:
C01G51/06; C01G51/00
Foreign References:
| CN113830839A | 2021-12-24 | |||
| CN109133198A | 2019-01-04 | |||
| CN109179516A | 2019-01-11 | |||
| CN110407257A | 2019-11-05 | |||
| JPH07187681A | 1995-07-25 |
Attorney, Agent or Firm:
JIAQUAN IP LAW (CN)
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