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<p>The Malanjkhand chalcopyrite deposit, India’s primary copper ore producer, has potential for enhanced flotation performance. This study employs standard flotation experiments using a mechanical cell, integrating a conventional collecting agent with a novel ester-based collector blend. A three-factor, three-level Box-Behnken design systematically evaluated experimental parameters, analysed using ANOVA, cubic plots,&#xa0;response surface methodologies. Investigation examines the effects-interactions of three key parameters in chalcopyrite flotation: dosages of sodium silicate (depressant), (SIPX-&#xa0;collector)&#xa0;and acetoacetic acid n-octyl ester (AoE) (co-collector/modifier). Both high-grade (HG) and low-grade (LG) ore samples were tested to compare process outcomes. Results showed that incorporating AoE with optimized SIPX dosages increased copper grade by at least 15%, with favorable recovery rates. For the HG sample, optimal conditions for a 93.64% recovery were 0.001&#xa0;kg/t sodium silicate, 0.005&#xa0;kg/t SIPX, and 0.00125&#xa0;kg/t AoE.&#xa0;Achieve an optimized grade of 3%, a 78.1% increase from the feed sample, the ideal conditions were 0.00175&#xa0;kg/t sodium silicate, 0.005&#xa0;kg/t SIPX, and 0.0005&#xa0;kg/t AoE for the HG sample. Validation experiments confirmed the results, aligning well with statistical model predictions.&#xa0;Calculated&#xa0;(SPI) value of 0.1241 capita kg<sup>-1</sup>&#xa0;falls within the desirable range of 0 to 1, indicating the reliability-accuracy of the outcomes.</p>

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Innovative study on chalcopyrite flotation efficiency with xanthate and ester collectors blend using response surface methodology (B.B.D): towards sustainability

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  • 出版模式：

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  • 发表日期：

    2025年1月2日

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  • Imkong Rathi,
  • Shravan Kumar

摘要

The Malanjkhand chalcopyrite deposit, India’s primary copper ore producer, has potential for enhanced flotation performance. This study employs standard flotation experiments using a mechanical cell, integrating a conventional collecting agent with a novel ester-based collector blend. A three-factor, three-level Box-Behnken design systematically evaluated experimental parameters, analysed using ANOVA, cubic plots, response surface methodologies. Investigation examines the effects-interactions of three key parameters in chalcopyrite flotation: dosages of sodium silicate (depressant), (SIPX- collector) and acetoacetic acid n-octyl ester (AoE) (co-collector/modifier). Both high-grade (HG) and low-grade (LG) ore samples were tested to compare process outcomes. Results showed that incorporating AoE with optimized SIPX dosages increased copper grade by at least 15%, with favorable recovery rates. For the HG sample, optimal conditions for a 93.64% recovery were 0.001 kg/t sodium silicate, 0.005 kg/t SIPX, and 0.00125 kg/t AoE. Achieve an optimized grade of 3%, a 78.1% increase from the feed sample, the ideal conditions were 0.00175 kg/t sodium silicate, 0.005 kg/t SIPX, and 0.0005 kg/t AoE for the HG sample. Validation experiments confirmed the results, aligning well with statistical model predictions. Calculated (SPI) value of 0.1241 capita kg-1 falls within the desirable range of 0 to 1, indicating the reliability-accuracy of the outcomes.