The microspheric catalysts of sodium sulphite low-temperature oxidation by oxygen in water solutions

  • V. Yemelyanova Scientific Research Institute for New Chemical Technologies and Materials, Almaty
  • B. Dosumova Scientific Research Institute for New Chemical Technologies and Materials, Almaty
  • U. Dzhatkanbaeva Scientific Research Institute for New Chemical Technologies and Materials, Almaty
  • E. Shakiyev Scientific Research Institute for New Chemical Technologies and Materials, Almaty
  • H. Kurokava Saitama University, Saitama
  • Zh. Kairbekov Scientific Research Institute for New Chemical Technologies and Materials, Almaty
  • D. Muhitova Scientific Research Institute for New Chemical Technologies and Materials, Almaty
  • T. Shakiyeva Scientific Research Institute for New Chemical Technologies and Materials, Almaty
  • Zh. Myltykbaeva Scientific Research Institute for New Chemical Technologies and Materials, Almaty
DOI: https://doi.org/10.15328/chemb_2013_327-35
Keywords: aluminosilicate microspheres, CHPP fly ash, catalyst, oxidation, sulfite

Abstract

The composition and structure of the microspheric alumosilicates of Central Heating and Power Plants (CHРP) ashes is studied with the help of modern physical-chemical methods (XRD, scanning electronic microscopy, BET, elemental and chemical analysis). The microspheres activity in the reaction of Na2SO3 oxidation by oxygen is studied by kinetic and potentiometric methods. By means of EPR and Möessbauer spectroscopy it is established that iron enter into the composition of cenospheres in two states Fe3+ and Fe2+, thus, in the field of the iron content 3-4 wt. % the iron (3+) is in the form of single ions in an aluminosilicate matrix. 

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Published
2013-09-14
How to Cite
Yemelyanova, V., Dosumova, B., Dzhatkanbaeva, U., Shakiyev, E., Kurokava, H., Kairbekov, Z., Muhitova, D., Shakiyeva, T., & Myltykbaeva, Z. (2013). The microspheric catalysts of sodium sulphite low-temperature oxidation by oxygen in water solutions. Chemical Bulletin of Kazakh National University, 71(3), 27-35. https://doi.org/https://doi.org/10.15328/chemb_2013_327-35
Issue
Vol 71 No 3 (2013): Chemical Bulletin of Kazakh National University
Section
Catalysis and Petrochemistry
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