Title:
A LITHIUM CARBONATE PRODUCTION PROCESS AND APPARATUS
Document Type and Number:
WIPO Patent Application WO/2022/119927
Kind Code:
A9
Abstract:
A method of forming lithium carbonate from a lithium-bearing solution including: evaporating the lithium-bearing solution to precipitate a first group of impurities; removing the first group of impurities to form a first purified solution; and performing a flash crystallisation step within a predetermined temperature range to crystallise a second group of impurities from the first purified solution; removing the second group of impurities from the first solution to form a second purified solution, wherein at least 90wt% of lithium is recovered from the first purified solution; and reacting the second purified solution with a metal carbonate to form lithium carbonate of at least 90wt% purity.
Inventors:
PATWARDHAN AMIT (US)
SHINDE SANDIP (US)
WATTENBARGER ALLEN (US)
SHINDE SANDIP (US)
WATTENBARGER ALLEN (US)
Application Number:
PCT/US2021/061415
Publication Date:
September 22, 2022
Filing Date:
December 01, 2021
Export Citation:
Assignee:
UNITED STATES BORAX INC (US)
International Classes:
C01D15/08; C25B1/16; C25B15/08
Attorney, Agent or Firm:
WOLFFE, Susan A. (US)
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