Dissolution kinetics of aluminum and iron from coal mining waste by hydrochloric acid

Li Cui; Yanxia Guo; Xuming Wang; Zhiping Du; Fangqin Cheng

doi:10.1016/j.cjche.2014.05.017

Your Location：

Home >

Browse articles >

Dissolution kinetics of aluminum and iron from coal mining waste by hydrochloric acid

能源、资源与环境技术 | Updated：2026-01-06

- Dissolution kinetics of aluminum and iron from coal mining waste by hydrochloric acid
- Chinese Journal of Chemical Engineering Vol. 23, Issue 3, Pages: 590-596(2015)
- Affiliations：
  
  1. Institute of Resources and Environment Engineering, Shanxi University, State Environmental Protection Key Laboratory of Efficient Utilization Technology of CoalWaste Resources,Taiyuan,China,030006
  2. Department of Metallurgical Engineering, College of Mines and Earth Sciences, University of Utah,UT,Salt Lake City,USA,84112
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2014.05.017
  CLC：
- Published：2015
- Accepted：
Scan QR Code
Li Cui, Yanxia Guo, Xuming Wang, Zhiping Du, Fangqin Cheng. Dissolution kinetics of aluminum and iron from coal mining waste by hydrochloric acid[J]. , 2015, 23(3): 590-596.
DOI：

Li Cui, Yanxia Guo, Xuming Wang, Zhiping Du, Fangqin Cheng. Dissolution kinetics of aluminum and iron from coal mining waste by hydrochloric acid[J]. , 2015, 23(3): 590-596. DOI： 10.1016/j.cjche.2014.05.017.

摘要

Abstract

The extraction of aluminum from coal mining waste (CMW) is an important industrial process. The two major problems in applications are low aluminum dissolution efficiency and high iron content in the raw material

which affect the quantity and quality of products. To improve the aluminumrecovery process

the leaching kinetics of CMWwith hydrochloric acid was studied. A shrinking core model was used to investigate aluminum and iron dissolution kinetics. Based on the kinetic characteristics

a process for recovering aluminum was proposed and tested experimentally. It is found that the aluminum leaching reaction is controlled by surface reaction at low temperatures (40-80℃) and by diffusion process at higher temperatures (90-106℃). The iron dissolution process is dominated by surface reaction at 40-100℃. The results showthat iron could be dissolved or separated by concentrated hydrochloric acid. Fine grinding will improve aluminum dissolution significantly.

关键词

Keywords

references

Views

655

Downloads

CSCD

Alert me when the article has been cited

Submit

Tools

Publicity Resources

Electrochemical Treatment of Distillery Spent Wash Using Aluminum and Iron Electrodes

Fe, N-decorated carbocatalyst based on Fe-MOF as PDS activator for efficient sulfadiazine degradation: An electron transfer process

Making waste profitable: Efficient recovery of metallic iron from jarosite residues

Aluminum impregnated silica catalyst for Friedel-Crafts reaction:Influence of ordering mesostructure

Localized Corrosion and Phase Transformation of Simulated Archaeological Iron

Related Author

V. Khandegar

Anil. K. Saroha

Guangli Xiu

Wei Zhang

Shuang Li

Jiayi Xu

Qingyuan Dong

Mengjun Chen

Related Institution

Department of Chemical Engineering, Indian Institute of Technology, Delhi Hauz Khas

State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, School of Resources and Environmental Engineering, East China University of Science and Technology

Shanghai Environmental Protection Key Laboratory on Environmental Standard and Risk Management of Chemical Pollutants, East China University of Science and Technology

Shanghai Institute of Pollution Control and Ecological Security, Tongji University

Key Laboratory of Solid Waste Treatment and Resource Recycle (SWUST), Ministry of Education, Southwest University of Science and Technology

⁰