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2013•Journal of University of JinanRequires access

Multi-Stage Cycle Dealkalization and Alkali Recovery Process of Red Mud Slurry

Yang Jiu-jun

Open publisher page 5 citations

Abstract

The combined treatment of multi-stage cycle dealkalization and alkali recovery on red mud from alumina industry is studied.After three-stage reaction processing experiment,it is shown that when the solid content of slurry is 50%,w(CaO)=5%,the temperature is 70 ℃ and the filter series is 4,the sample's water content is below 25%,alkali removal rate reaches 79.43% and alkali concentration is 0.87%.

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What this paper is about

The combined treatment of multi-stage cycle dealkalization and alkali recovery on red mud from alumina industry is studied.After three-stage reaction processing experiment,it is shown that when the solid content of slurry is 50%,w(CaO)=5%,the temperature is 70 ℃ and the filter series is 4,the sample's water content is below 25%,alkali removal rate reaches 79.43% and alkali concentration is 0.87%.

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Available abstract

The combined treatment of multi-stage cycle dealkalization and alkali recovery on red mud from alumina industry is studied.After three-stage reaction processing experiment,it is shown that when the solid content of slurry is 50%,w(CaO)=5%,the temperature is 70 ℃ and the filter series is 4,the sample's water content is below 25%,alkali removal rate reaches 79.43% and alkali concentration is 0.87%.

Key concepts: Alkali metal, Slurry, Stage (stratigraphy), Multi stage, Pulp and paper industry, Materials science, Mineralogy, Waste management

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