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Magnesium chloride is an inorganic compound with the formula Mg ... In the Dow process, magnesium chloride is regenerated from magnesium hydroxide using hydrochloric ...
Vapor-deposited magnesium crystals from the Pidgeon process. The Pidgeon process is a practical method for smelting magnesium.The most common method involves the raw material, dolomite being fed into an externally heated reduction tank and then thermally reduced to metallic magnesium using 75% ferrosilicon as a reducing agent in a vacuum. [1]
DOW contains over 70 mineral nutrients and trace elements, including magnesium (Mg), calcium (Ca), and potassium (K) in their bio ionic form. To extract these products, DOW is treated with microfiltration and reverse osmosis to desalinate and concentrate magnesium, other minerals, and trace elements whilst eliminating the salt ( sodium chloride ).
The magnesium chloride can be obtained using the Dow process, a process that mixes sea water and dolomite in a flocculator or by dehydration of magnesium chloride brines. The electrolytic cells are partially submerged in a molten salt electrolyte to which the produced magnesium chloride is added in concentrations between 6–18%. [44]
The Dow process may refer to: Dow process (bromine), a method of bromine extraction from brine; Dow process (magnesium), a method of magnesium extraction from brine; Dow process (phenol), a method of phenol production through the hydrolysis of chlorobenzene
The magnesium plant at Freeport operated until 1998, when Dow announced that it would not rebuild the unit following hurricane damage. [34] Because metallic magnesium is extracted from brine by an electrolytic process, the economics are sensitive to the cost of electricity.
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Magnesium salts are included in various foods, fertilizers (magnesium is a component of chlorophyll), and microbe culture media. Magnesium sulfite is used in the manufacture of paper (sulfite process). Magnesium phosphate is used to fireproof wood used in construction. Magnesium hexafluorosilicate is used for moth-proofing textiles.