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C01F7/04—Preparation of alkali metal aluminates; Aluminium oxide or hydroxide therefrom
C01F7/08—Preparation of alkali metal aluminates; Aluminium oxide or hydroxide therefrom by treating aluminous minerals with sodium carbonate, e.g. sinter processes
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FR379021A1907-06-201907-06-20Procédé de fabrication de l'alumine pure
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