基于Box-Behnken试验设计的Eskisehir (Mihaliccik-Yunusemre)红土矿镍溶出浸出参数优化与建模

Journal of environmental analytical chemistry Pub Date : 2020-01-01 DOI:10.37421/jreac.2020.7.263

T. Agacayak, Mohamed T. Ahmed

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引用次数: 3

摘要

采用Box-Behnken设计，对影响EskiA…ÂŸehir (MihalA“Â±ccA”Â±k-Yunusemre)红土矿镍溶出的浸出参数进行了优化和建模研究。实验设计参数为搅拌转速(100-400 rpm)、温度(40-80℃)、酸浓度(0.1-2 M)和溶解时间(30-180 min)。在Minitab 16.0程序中采用Box-Behnken实验设计进行了27次实验。经浸出试验，镍溶出率最高可达87.85%。用数学模型描述了镍溶解的有效参数及其相互作用。对实验结果进行方差分析和多元回归分析。计算镍溶出度模型的R2值为0.980。结果表明，预测值与实测值吻合较好。建立了影响镍溶解效率参数的三维响应面和等值线图，并对结果进行了检验。

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Optimization and Modeling of Leaching Parameters Affecting Nickel Dissolution from Lateritic Ore in Eskisehir (Mihaliccik-Yunusemre) Using Box-Behnken Experimental Design

In this study, optimization and modeling of leaching parameters affecting nickel dissolution from lateritic ore in EskiA…ÂŸehir (MihalA„Â±ccA„Â±k-Yunusemre) were investigated using Box-Behnken design. Stirring speed (100-400 rpm, temperature (40-80°C), acid concentration (0.1-2 M) and dissolution time (30-180 min) were selected as experimental design parameters. 27 experiments were carried out by Box-Behnken experimental design in Minitab 16.0 program. After leaching experiments, the highest Ni dissolution percentages were obtained as 87.85%. The effective parameters and their interactions in nickel dissolution are described with a mathematical model. The results obtained from the experiments were subjected to ANOVA and multiple regression analysis. The R2 value of the model for nickel dissolution was calculated as 0.980. This showed that the predicted values are in good agreement with the observed values. In addition, three-dimensional response surface and contour graphs of the parameters affecting nickel dissolution efficiency were created and the results were examined.

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Journal of environmental analytical chemistry

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