FACTORS AFFECTING SILICA CONTENT OF ALUMINIUM HYDROXIDE PRODUCT IN CARBONIZATION PROCESS

Acta Metall Sin

1990, Vol. 26

Issue (5): 156-159 DOI:

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FACTORS AFFECTING SILICA CONTENT OF ALUMINIUM HYDROXIDE PRODUCT IN CARBONIZATION PROCESS

LIU Miaoxiu;CHENG Zhaonian;CHEN Nianyi;KE Jiajun Shanghai Institute of Metallurgy; Academia Sinica Institute of Chemical Metallurgy; Academia Sinica; Beijing

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LIU Miaoxiu;CHENG Zhaonian;CHEN Nianyi;KE Jiajun Shanghai Institute of Metallurgy; Academia Sinica Institute of Chemical Metallurgy; Academia Sinica; Beijing. FACTORS AFFECTING SILICA CONTENT OF ALUMINIUM HYDROXIDE PRODUCT IN CARBONIZATION PROCESS. Acta Metall Sin, 1990, 26(5): 156-159.

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Abstract The regularity of carbonization process for alumina production has been summa-rized by the pattern recognition and regression. A mathematical model has been proposed todescEribe the factors affecting the silica content of aluminium hydroxide product. The high con-ecranttion of aluminate ion in solution will prodoce aluminuium hydroxide with low content ofSiO_2 under the condition of Al_2O_3/SiO_2 ratio kept unchanged. This was confirmed by the auth-ors′certain scale experiments.KEY

Key words: carbonization silica content alumina production pattern recognition

Received: 18 May 1990

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