ANFIS based prediction of the aluminum extraction from boehmite bauxite in the Bayer process

作者：Mihajlovic Ivan^*; Duric Isidora; Zivkovic Zivan

来源：Polish Journal of Chemical Technology, 2014, 16(1): 103-109.

DOI：10.2478/pjct-2014-0018

• Leaching
• bauxite
• Bayer process
• statistical modeling
• ANFIS

This paper presents the results of nonlinear statistical modeling of the bauxite leaching process, as part of Bayer technology for alumina production. Based on the data, collected during the year 2011 from the industrial production in the alumina factory Birac, Zvornik (Bosnia and Herzegovina), nonlinear statistical modeling of the industrial process was performed. The model was developed as an attempt to define the dependence of the Al2O3 degree of recovery as a function of input parameters of the leaching process: content of Al2O3, SiO2 and Fe2O3 in the bauxite, as well as content of Na(2)Ocaustic and Al2O3 in the starting sodium aluminate solution. As the statistical modeling tool, Adaptive Network Based Fuzzy Inference System (ANFIS) was used. The model, defined by the ANFIS methodology, expressed a high fitting level and accordingly can be used for the efficient prediction of the Al2O3 degree of recovery, as a function of the process inputs under the industrial conditions.

• 出版日期2014