METHODS OF PRODUCING ALUMINUM FLUORIDE FROM CRYOLITE BATH

    公开(公告)号:WO2021252267A1

    公开(公告)日:2021-12-16

    申请号:PCT/US2021/035741

    申请日:2021-06-03

    Abstract: New methods of producing aluminum fluoride from cryolite are disclosed. A method may include a step of reacting cryolite bath materials with aluminum sulfate, thereby producing a reactant product, the reactant product comprising aluminum fluoride. The method may further include a step of removing impurities from the reactant product, thereby creating a purified product comprising the aluminum fluoride. The removed impurities may comprise at least one of sodium (Na), magnesium (Mg), and calcium (Ca). In one embodiment, due to the removing step, the purified product contains not greater than 0.2 wt. % of calcium.

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