| 摘要 |
A method for the production of Na Cl or an aqueous Na Cl solution from sea-water or brine comprising contacting sea-water or brine with a waste product from the Bayer process used for the production of aluminium, known as red mud. In the production of Na Cl, red mud can be added to solar salt evaporation pools to remove impurities such as magnesium and calcium, resulting in the production of purified Na Cl crystals.
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