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Optimization of copper extraction from spent LTS catalyst (CuO–ZnO–Al2O3) using chelating agent: Box-behnken experimental design methodology

  • Metallurgy of Nonferrous Metals
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Abstract

The objective of the present work is to investigate the extraction of copper from spent low temperature Shift catalyst using EDTA, as chelating agent and optimization of the parameters that influence the extraction of copper. Response surface methodology was applied for designing the experiment and to determine the optimal experimental conditions. Most influencing parameters such as concentration of EDTA, solid to liquid ratio and particle size of catalyst were optimized based on 3 factors 3 levels box behnken design which requires 15 run of experiments for designing a response surface. The high value of regression coefficient R 2 (0.981) indicates a good correlation between predicted and experimental response, which confirms the acceptability of the proposed model.The optimum conditions were found as—concentration of EDTA: 0.5889 M, solid to liquid ratio: 0.02 and particle size: 90 μm. Under these optimum conditions, the experimental value of extraction of copper was estimated as 94.5% which seems very close to predicted response.

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Authors and Affiliations

  1. Department of Chemical Engineering, Jaypee University of Engineering and Technology, 473226, Raghogarh, Guna M.P., India

    Sushmita Sharma, N. N. Dutta & G. K. Agrawal

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  1. Sushmita Sharma
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  2. N. N. Dutta
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  3. G. K. Agrawal
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Correspondence to Sushmita Sharma.

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Sharma, S., Dutta, N.N. & Agrawal, G.K. Optimization of copper extraction from spent LTS catalyst (CuO–ZnO–Al2O3) using chelating agent: Box-behnken experimental design methodology. Russ. J. Non-ferrous Metals 58, 22–29 (2017). https://doi.org/10.3103/S1067821217010102

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  • DOI: https://doi.org/10.3103/S1067821217010102

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