Abstract
A new approach to the removal of organic impurities from the technological aluminate solution of alumina production via processing the solution by a high-speed oxidizing thermal-plasma jet flowing into the solution bulk is considered. It is experimentally shown that, during the plasma treatment of aqueous solutions of phenol and humic acids, a degree of the transformation of starting organic compounds exceeding 80% is achieved. In experiments on the plasma treatment of the technological solution, a decrease in the chemical consumption of oxygen by more than 60% is achieved, which indicates a considerable decrease in the concentration of organic impurities.
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Original Russian Text © A.V. Samokhin, N.V. Alekseev, Yu.A. Lainer, Yu.V. Tsvetkov, 2010, published in Izvestiya VUZ. Tsvetnaya Metallurgiya, 2010, No. 3, pp. 19–23.
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Samokhin, A.V., Alekseev, N.V., Lainer, Y.A. et al. Oxidation of organic impurities in production aluminate solutions under the effect of the thermal plasma jet. Russ. J. Non-ferrous Metals 51, 217–221 (2010). https://doi.org/10.3103/S1067821210030041
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DOI: https://doi.org/10.3103/S1067821210030041