Physical and chemical aspects of the study of clusters, nanostructures and nanomaterials
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Effect of metal additives in hydrochemical processing of diaspore-bemite bauxite on physicochemical properties of reduced muds

S.A. Bibanaeva, L.A. Pasechnik, V.M. Skachkov, V.T. Surikov, S.P. Yatsenko

The Institute of Solid State Chemistry of the Ural Branch of RAS

DOI: 10.26456/pcascnn/2020.12.784

Original article

Abstract: The work is devoted to study of the high-temperature hydrochemical decomposition of mineral complexes of diaspore-bemite bauxites by the Bayer method with the extraction of macro-components-aluminum and iron in the presence of metal reducing agents. X-ray phase studies were performed to determine the composition and structure of new compounds in magnetized spent red mud. Based on the results of physical and chemical studies of leaching products, optimal parameters for reducing leaching of bauxite are recommended, aimed at extracting aluminum and synthesizing magnetite. The regularities of the influence of the type of metal reducing agent on the morphology, phase composition, and particle size in the red mud are revealed.

Keywords: bauxite, leaching, Bayer process, iron reduction, red mud, recycling, hematite, magnetite, dispersivity

  • Svetlana A. Bibanaeva – Researcher, Laboratory of Heterogeneous Processes, The Institute of Solid State Chemistry of the Ural Branch of RAS
  • Liliya A. Pasechnik – Ph. D., Leading Researcher, Laboratory of Heterogeneous Processes, The Institute of Solid State Chemistry of the Ural Branch of RAS
  • Vladimir M. Skachkov – Ph. D., Senior Researcher, Laboratory of Heterogeneous Processes, The Institute of Solid State Chemistry of the Ural Branch of RAS
  • Vladimir T. Surikov – Leading engineer, Laboratory of physical and chemical analysis methods, The Institute of Solid State Chemistry of the Ural Branch of RAS
  • Sergey P. Yatsenko – Dr. Sc., Professor, Laboratory of Heterogeneous Processes, The Institute of Solid State Chemistry of the Ural Branch of RAS

Reference:

Bibanaeva, S.A. Effect of metal additives in hydrochemical processing of diaspore-bemite bauxite on physicochemical properties of reduced muds / S.A. Bibanaeva, L.A. Pasechnik, V.M. Skachkov, V.T. Surikov, S.P. Yatsenko // Physical and chemical aspects of the study of clusters, nanostructures and nanomaterials. — 2020. — I. 12. — P. 784-791. DOI: 10.26456/pcascnn/2020.12.784. (In Russian).

Full article (in Russian): download PDF file

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