FACTORS AFFECTING SILICA CONTENT OF ALUMINIUM HYDROXIDE PRODUCT IN CARBONIZATION PROCESS

Abstract

Abstract: The regularity of the carbonization process in alumina production has been summarized by the pattern recognition and regression.A mathematical model has been proposed to describe the factors affecting the silica content of aluminium hydroxide product.The high concentration of aluminate ions in solution will produce aluminium hydroxide with low content of SiO_2 under the condition of Al_2O_3/SiO_2 ratio kept unchanged.This was confirmed by certain scale experiments.

Key words: carbonization, silica content, alumina, pattern recognition

LIU Miaoxiu CHENG Zhaonian CHEN Nianyi Shanghai Institute of Metallurgy,Academia Sinica,Shanghai,ChinaKE Jiajun Institute of Chemical Metallurgy,Academia Sinica,Beijing,China CHEN Nianyi,Professor,Shanghai Institute of Metallurgy,Academia Sinica,Shanghai 200050,China. FACTORS AFFECTING SILICA CONTENT OF ALUMINIUM HYDROXIDE PRODUCT IN CARBONIZATION PROCESS[J]. Acta Metallurgica Sinica (English Letters), 1990, 3(8): 153-156.

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FACTORS AFFECTING SILICA CONTENT OF ALUMINIUM HYDROXIDE PRODUCT IN CARBONIZATION PROCESS

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