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C01F7/46—Purification of aluminium oxide, aluminium hydroxide or aluminates
C01F7/47—Purification of aluminium oxide, aluminium hydroxide or aluminates of aluminates, e.g. removal of compounds of Si, Fe, Ga or of organic compounds from Bayer process liquors
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FR339049A1903-09-191903-09-19Perfectionnements dans la fabrication de l'alumine
ExpiredFR339049A
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