LITHIUM RECOVERY FROM BRNIE
    41.
    发明申请

    公开(公告)号:US20230064968A1

    公开(公告)日:2023-03-02

    申请号:US17818949

    申请日:2022-08-10

    Abstract: Provided herein are processes for recovering lithium ions from a brine source. The process can comprises increasing the pH of a brine source comprising lithium ions to at least about 5.5; contacting the pH-elevated brine source with a bed of protonated ion exchange media to produce a lithiated ion exchange media and a lithium-depleted brine stream; contacting the lithiated ion exchange media with an acidic aqueous wash liquid; and contacting the washed lithiated ion exchange media with an elution liquid comprising an acid. Also provided herein is a process for increasing the pH of brine comprising obtaining brine from a brine source comprising lithium ions; adding the brine to a continuously stirred tank reactor without preprocessing the brine to remove solid matter; adding a strong base to the continuously stirred tank reactor; contacting the brine with the base. Further provided herein are processes for creating a lithiated ion exchange media, which can comprise contacting a pH-elevated brine source with a bed of protonated ion exchange media; and producing a lithiated ion exchange media and a spent brine, wherein the bed of protonated ion exchange media comprises a metal oxide absorbent and a polymeric binder.

    Method of zirconium phosphate recharging

    公开(公告)号:US09974896B2

    公开(公告)日:2018-05-22

    申请号:US14642847

    申请日:2015-03-10

    CPC classification number: A61M1/1696 B01J39/09 C01B25/45

    Abstract: Methods and related apparatuses for sorbent recharging are provided. The methods and related apparatuses for recharging can recharge a specific rechargeable layer of a sorbent material such as zirconium phosphate in a sorbent cartridge. The methods and apparatuses include passing solutions containing combinations of acids, bases and salts through a module containing a rechargeable sorbent material such as zirconium phosphate in order to replace ions bound to the zirconium phosphate with hydrogen and sodium ions. The method allows for a customizable zirconium phosphate, with control over the ratios of sodium to hydrogen on the recharged zirconium phosphate.

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