摘要
采用响应曲面法中的Box-Behnken模式对碱式碳酸钴煅烧制备Co_3O_4工艺条件进行了研究,建立了碱式碳酸钴煅烧制备Co_3O_4的二次多项式数学模型,探讨主要因素的影响效应及其交互作用。方差分析结果表明:煅烧温度、煅烧时间以及物料量对碱式碳酸钴的分解率都有显著影响。采用响应曲面法实验设计优化得出的最佳工艺条件为:煅烧温度665.91 K、煅烧时间32.02min、物料量3.32g,在此条件下,碱式碳酸钴分解率预测值为99.99%,与实验值99.92%相近,证实回归方程拟合度良好。XRD分析结果表明,采用响应曲面法所得的煅烧工艺参数是可行的。
The preparation of Co3O4 by calcination of basic cobalt carbonate was studied using the Box⁃Behnken designs for response surface methodology(RSM).A quadratic polynomial mathematical model was established for the preparation of Co3O4 by calcination of basic cobalt carbonate,and the influence of main factors and their interactions were also discussed.It is found from the analysis of variance that the calcination temperature,calcination time and the quantity of material can bring significant effects to the decomposition rate of basic cobalt carbonate.The calcination designed with RSM is optimally performed at the temperature of 665.91 K for 32.02 min with the material quantity of 3.32 g.It is predicted that the decomposition rate of basic cobalt carbonate is 99.99%,approaching the practical value of 99.92%,which confirms that the regression equation fits the decomposition rates very well.The XRD analysis reveals that it is feasible for the processing parameters of calcination to be obtained using RSM.
作者
宇文超
刘秉国
彭金辉
黄孟阳
张利波
郭胜惠
YUWEN Chao;LIU Bing-guo;PENG Jin-hui;HUANG Meng-yang;ZHANG Li-bo;GUO Sheng-hui(Faculty of Metallurgical and Energy Engineering,Kunming University of Science and Technology,Kunming 650093,Yunnan,China;Key Laboratory of Unconventional Metallurgy of the Ministry of Education,Kunming University of Science and Technology,Kunming 650093,Yunnan,China;Yunnan Energy Research Institute Co Ltd,Kunming 650500,Yunnan,China)
出处
《矿冶工程》
CAS
CSCD
北大核心
2021年第1期114-118,共5页
Mining and Metallurgical Engineering
基金
国家自然科学基金(51961020)
可再生能源多能互补关键技术研究及产业化应用示范(2018IB020)
岑可法院士工作站(2018IC085)
徐州市科技重点项目(KC19247)。
关键词
响应曲面法
碱式碳酸钴
煅烧
三氧化三钴
response surface methodology
basic cobalt carbonate
calcination
Co3O4
