Analysis  of Attrition Index of the Smelter Grade Alumina Particle

doi:10.12068/j.issn.1005-3026.2021.06.007

Abstract

Abstract: In order to ensure an efficient transportation and smooth feeding of the smelter grade alumina， certain particle size distribution and attrition index of the alumina are required. The attrition resistance of the smelter grade alumina is studied and discussed. The particle size distribution and attrition index of 32 alumina samples collected from different alumina plants were measured and calculated by using a self-made alumina attrition index analyzer. The relationship between alumina attrition index and particle size distribution was analyzed. The experimental results emphasized the importance of the combination of the attrition index and particle size distributions. Meantime， the attrition rate of alumina in the dry scrubbing system was analyzed. A method was proposed to evaluate the particle size distribution of alumina.

Key words: smelter grade alumina; particle size distribution; attrition index; dry scrubbing system; aluminum electrolysis

CLC Number:

TF821

YANG You-jian， QI Jun-feng， PANG Xiao-juan， WANG Zhao-wen. Analysis of Attrition Index of the Smelter Grade Alumina Particle[J]. Journal of Northeastern University(Natural Science), 2021, 42(6): 801-806.

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Analysis of Attrition Index of the Smelter Grade Alumina Particle

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