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公开(公告)号:US20180222761A1
公开(公告)日:2018-08-09
申请号:US15728784
申请日:2017-10-10
发明人: Jinichiro Nakano , Anna Nakano , James P. Bennett
CPC分类号: C01D15/08 , C01P2006/80 , C22C24/00
摘要: Embodiments relate to methods, systems And apparatus tor generating lithium from brine. The brine is heated in a first vessel to greater than 260° C. and CO2 gas is injected mixing with the brine such that the CO2/P is greater than 18 g/atm. The brine is held at greater than 18 g/atm for longer than 20 minutes so that any impurities precipitate as solids leaving only lithium ions and chlorine ions. The brine is moved to a second vessel screening out solid precipitates leaving a brine containing only chlorine and lithium. CO2 gas is injected and mixed with the brine at 260° C. so that the CO2/P is greater than 200 g/atm. The brine is held at greater than 200 g/atm for longer than 20 minutes suppressing the chlorine as dissolved ions while lithium precipitates out as lithium carbonate. The lithium carbonate precipitate is removed from the brine solution.
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公开(公告)号:US20210047196A1
公开(公告)日:2021-02-18
申请号:US16537985
申请日:2019-08-12
摘要: Embodiments relate to methods for generating selected materials from a natural brine. A natural brine comprising at least a portion of a selected material is heated. CO2 is added and mixes with the natural brine forming a mixture such that the CO2/P is a first predetermined value. The mixture is held so that impurities in the natural brine precipitate as solids leaving a second brine substantially comprising the selected material. The second brine is heated. CO2 gas is injected into the second brine, mixing so that the CO2/P is a second predetermined value. The mixture is held so that the selected material precipitates out and are removed.
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