Raushan Baisynbaeva - THE MICROSPHERIC CATALYSTS OF SODIUM SULPHITE LOW-TEMPERATURE OXIDATION BY OXYGEN IN WATER SOLUTIONS

Version 1

      Publication Details (including relevant citation   information):

       
    1. V.S.Yemelyanovaa, H. Kurokawab,   Zh.K.Kairbekova,c, V.Shakiyevaa,   Zh.K.Myltykbaevaa,c , Baisynbaeva R.Sa 

      aScientific research Institute for New   Chemical Technologies and Materials under the KazNY named   Al-Farabi, Almaty, 50061  Kazakhstan,

      b  Saitama   University, Saitama City, 338-8570   Japan

      cKazakh National University, Almaty 050040, Kazakhstan

      Abstract:

      Abstract   –The composition and structure of the   microspheric aluminosilicates of Central Heating and Power Plants   (CHРP) ashes is studied with the   help of modern physical-chemical methods (XRD, scanning electron   microscop, 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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