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Abbas Aghajani Bazzazi

Abbas Aghajani Bazzazi

Assistant Professor

College: Faculty of Engineering

Department: Mining Engineering

Degree: Ph.D

Birth Year: 1980

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Abbas Aghajani Bazzazi

Assistant Professor Abbas Aghajani Bazzazi

College: Faculty of Engineering - Department: Mining Engineering Degree: Ph.D | Birth Year: 1980 |

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

AuthorsSh Alizadeh - MM Salari Rad - A Agahjani Bazzazi
JournalInternational Journal of Mining Science and Technology
Page number1017-1023
Serial number6
Volume number26
Paper TypeFull Paper
Published At2016
Journal GradeISI
Journal TypeTypographic
Journal CountryNetherlands

Abstract

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.

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