粉煤灰盐酸法提铝后残渣的综合利用研究

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Abstract Shenhua Group has independently developed synergistic extraction technology of fly ash and hydrochloric acid, the aluminum in the fly ash and the valuable elements gallium, lithium and cesium are synergistically extracted. Finally, the useful components in the acid leaching solution are all recycled. The solid residue after acid leaching (acid-soluble residue) is mainly composed of amorphous silica and alumina, as well as with high activity. It can be used as a raw material for silicon-based products to prepare molecular sieves, thermal insulation boards, porcelain bricks, rubber and plastic fillers, white carbon black, etc. Acid soluble-residue comprehensive utilization research technology can not only solves the environmental problems by white-mud accumulation, but also obtains higher profits, which is an important part of the circular economy industrial chain.

Key words： fly ash hydrochloric acid acid-soluble residue silicon-based products comprehensive utilization

Published: 01 July 2020

CLC number:

X752

Fund:This work was financially supported by the National Twelfth Five-Year Plan of Science and Technology Support Project (2011BAA04B05).

About author:: Min Jia, received her master's degree from Jilin University in 2012. Since July of 2012,she has been wor-king at Shenhua Zhunneng Resources Comprehensive Development Company Limited R & ; D Center. Her research interests mainly focus on comprehensive utilization of solid waste ; Lei Yang received his Ph.D. degree in physical chemistry from Jilin University. Since 2012,he has been wor-king at Shenhua Zhunneng Resources Comprehensive Development Company Limited R & ; D Center. His main research interest includes the comprehensive utilization of solid waste and waste-water treatment.

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Cite this article:

JIA Min,YANG Lei. Study on Comprehensive Utilization of Fly Ash Hydrochloric Acid Leaching Residue After Extracting Aluminum[J]. Materials Reports, 2020, 34(Z1): 277-279.

URL:

http://www.mater-rep.com/EN/ OR http://www.mater-rep.com/EN/Y2020/V34/IZ1/277