METHOD FOR PRODUCING MAGNESIUM HYDROXIDE WITH LOW BORON CONTENT FROM SEA WATER

METHOD FOR PRODUCING MAGNESIUM HYDROXIDE WITH LOW BORON CONTENT FROM SEA WATER

Magnesium hydroxide obtained by this method has low boron contents and finds application as a base material in the manufacture of magnesium-laden refractories. The method avoids pre-acidifying the raw seawater by an alternative treatment with 170-255 mg/l of calcium hydroxide and 150-510 mg/l of sod...

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Bibliographische Detailangaben
Hauptverfasser: MAVROV, VALKO S, BALAREV, KHRISTO KH, STOJANOV, NEDKO G, PETKOV, NIKOLAJ P
Format: Patent
Sprache:eng
Schlagworte:
CHEMISTRY
COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS
INORGANIC CHEMISTRY
METALLURGY
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Beschreibung
Zusammenfassung:Magnesium hydroxide obtained by this method has low boron contents and finds application as a base material in the manufacture of magnesium-laden refractories. The method avoids pre-acidifying the raw seawater by an alternative treatment with 170-255 mg/l of calcium hydroxide and 150-510 mg/l of sodium carbonate. The purified water is then treated with a stoichiometric amount of calcium hydroxide, followed by filtration.