Title:
METHOD FOR ENRICHMENT OF LITHIUM FROM LITHIUM CLAY ORE
Document Type and Number:
WIPO Patent Application WO/2024/036697
Kind Code:
A1
Abstract:
The present invention relates to the technical field of comprehensive utilization of resources. Disclosed is a method for enrichment of lithium from lithium clay ore. The method of the present invention comprises the following steps: (1) crushing particles to obtain fine raw ore particles; (2) performing an initial concentration operation on the raw ore by using ferric sulfate or ferric nitrate, sodium oleate and cocoamine to obtain rough concentrate and coarse tailings; (3) cleaning the rough concentrate to obtain a first part of concentrate; (4) ball-milling the coarse tailings; (5) performing a flotation operation on the ball-milled tailings to obtain re-milled rough concentrate and re-milled coarse tailings; (6) performing a flotation operation on the re-milled rough concentrate to obtain a second part of concentrate; and (7) performing a flotation operation on the re-milled coarse tailings to obtain cleaned tailings. The lithium in the concentrate obtained by the method of the present invention has a high grade and a relatively high recovery ratio.
Inventors:
RUAN DINGSHAN (CN)
ZHANG PENG (CN)
LI CHANGDONG (CN)
TANG SHIJIAN (CN)
LIU YUNTAO (CN)
ZHANG PENG (CN)
LI CHANGDONG (CN)
TANG SHIJIAN (CN)
LIU YUNTAO (CN)
Application Number:
PCT/CN2022/120623
Publication Date:
February 22, 2024
Filing Date:
September 22, 2022
Export Citation:
Assignee:
GUANGDONG BRUNP RECYCLING TECHNOLOGY CO LTD (CN)
HUNAN BRUNP RECYCLING TECH CO LTD (CN)
HUNAN BRUNP RECYCLING TECH CO LTD (CN)
International Classes:
B03B7/00; B03D1/02; C22B26/12; B03D101/02; B03D101/04; B03D101/06
Foreign References:
| CN103240185A | 2013-08-14 | |||
| US6138835A | 2000-10-31 | |||
| US4098687A | 1978-07-04 | |||
| CN111893318A | 2020-11-06 | |||
| CN114887757A | 2022-08-12 | |||
| CN107008567A | 2017-08-04 | |||
| CN111298978A | 2020-06-19 |
Attorney, Agent or Firm:
JIAQUAN IP LAW (CN)
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