Optimization of copper extraction from spent LTS catalyst (CuO–ZnO–Al2O3) using chelating agent: Box-behnken experimental design methodology
| Autor: | Sushmita Sharma, N. N. Dutta, G. K. Agrawal |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Materials science
010102 general mathematics Extraction (chemistry) Metals and Alloys Analytical chemistry chemistry.chemical_element 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Box–Behnken design Copper Surfaces Coatings and Films Catalysis Copper extraction techniques chemistry Mechanics of Materials Chelation Response surface methodology Particle size 0101 mathematics 0210 nano-technology |
| Zdroj: | Russian Journal of Non-Ferrous Metals. 58:22-29 |
| ISSN: | 1934-970X 1067-8212 |
| DOI: | 10.3103/s1067821217010102 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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