Patent classifications
C
CHEMISTRY; METALLURGY
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C01
INORGANIC CHEMISTRY
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C01F
COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
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C01F7/02
Aluminium oxide; Aluminium hydroxide; Aluminates
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C01F7/46
Purification of aluminium oxide, aluminium hydroxide or aluminates
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C01F7/47
of aluminates, e.g. removal of compounds of Si, Fe, Ga or of organic compounds from Bayer process liquors
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C01F7/473
Removal of organic compounds, e.g. sodium oxalate
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