Research of Leaching Alumina and Iron Oxide from Bayer Red Mud

Rong Rong Lu; Yi He Zhang; Feng Shan Zhou; Xin Ke Wang

doi:10.4028/www.scientific.net/AMM.151.355

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 151Research of Leaching Alumina and Iron Oxide from...

Research of Leaching Alumina and Iron Oxide from Bayer Red Mud

Abstract:

Adopting Bayer red mud as raw material, researching five acid leaching of alumina and iron oxide methods, hydrochloric acid leaching, sulfuric acid leaching, mixed acid leaching and two methods of classification acid leaching, affecting on leaching ratio of Al and Fe in red mud. All the five acid leaching experiments have a good effect on the leaching ratios of alumina and iron oxide. The highest leaching ratios of alumina and iron oxide are 90.1% and 99.0% when the volume of hydrochloric acid and sulfuric acid are 25mL in the mixed acid leaching. Finally, obtain better condition of preparing flocculants solution for water treatment by leaching Fe and Al in red mud.

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Periodical:

Applied Mechanics and Materials (Volume 151)

Pages:

355-359

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.151.355

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Online since:

January 2012

Authors:

Rong Rong Lu, Yi He Zhang, Feng Shan Zhou, Xin Ke Wang

Keywords:

Acid Leaching Ratios, Bayer Red Mud, Hydrochloric Acid, Sulfuric Acid

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