Alunite processing method selection using the AHP and TOPSIS approaches under fuzzy environment

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• 作者：Shahab Alizadeh^a ; ^{shahabali@aut.ac.ir" class="auth_mail" title="E-mail the corresponding author} ; Mohammad Mehdi Salari Rad^a ; Abbas Aghajani Bazzazi^b
• 关键词：Alunite ; Mineral processing methods ; Multi Attribute Decision Making ; Delphi Analytical Hierarchy Process (DAHP) ; Fuzzy TOPSIS
• 刊名：International Journal of Mining Science and Technology
• 出版年：2016
• 出版时间：November 2016
• 年：2016
• 卷：26
• 期：6
• 页码：1017-1023
• 全文大小：883 K

文摘

Alunite is the most important non bauxite resource for alumina. Various methods have been proposed and patented for processing alunite, but none has been performed at industrial scale and no technical, operational and economic data is available to evaluate methods. In addition, selecting the right approach for alunite beneficiation, requires introducing a wide range of criteria and careful analysis of alternatives. In this research, after studying the existing processes, 13 methods were considered and evaluated by 14 technical, economic and environmental analyzing criteria. Due to multiplicity of processing methods and attributes, in this paper, Multi Attribute Decision Making methods were employed to examine the appropriateness of choices. The Delphi Analytical Hierarchy Process (DAHP) was used for weighting selection criteria and Fuzzy TOPSIS approach was used to determine the most profitable candidates. Among 13 studied methods, Spanish, Svoronos and Hazan methods were respectively recognized to be the best choices.