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5. Production of boron and sodium perborate
5.1 Obtaining basic boron
Elemental boron is obtained by hot reduction of B 2 O 3 obtained :
from boric acid by a highly reducing metal (Mg, Ca, alkali, Al);
by igneous electrolysis at 1,100°C of B 2 O 3 and/or borates in a molten bath composed of various magnesium salts (MgCl 2 , MgSO 4 , MgCO 3 ). There is in fact a reduction of the anhydride B 2 ...
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Production of boron and sodium perborate
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Industrial Minerals http://www.indmin.com
World Metals and Minerals Review. British geological Survey http://www.bgs.ac.uk
United States Geological Survey http://www.usgs.gov
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