自然科学版 英文版
自然科学版 英文版
自然科学版 英文版

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中南大学学报(英文版)

Journal of Central South University

Vol. 6    No. 2    December 1999

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TREATMENT OF LOW-CONCENTRATION LYE OF RED MUD MOUND
Zhang Qixiu1 Luo Aiping1 Shi Chongguang2 Zheng Qicai2

1.Laboratory of Separation Science and Engineering in Metallurgy, Central South
University of Technology, Changsha 410083, China;
2.Light Metal Research Institute of Guizhou Aluminum Plant, Guiyang 550058, China

Abstract:Based on the systematic experiment of treating low-concentration lye in the red-mud mound, several key problems in the selection of technological process for industrial trial, such as aluminum precipitation in the process of electrodilalysis, dealuminum with carbon dioxide at lowtemperature, the selection of the technology for electrodialysis and estimation of benefit of the trial production line, are studied in the paper. For a production line with the handling capacity of 50 m3/h, its annual direct economic benefit can reach RMB 4 million yuan, calculated by 300 working days a year.

 

Key words: electrodialysis; dealuminum with CO2; recovery; alkali; alumina

中南大学学报(自然科学版)
  ISSN 1672-7207
CN 43-1426/N
ZDXZAC
中南大学学报(英文版)
  ISSN 2095-2899
CN 43-1516/TB
JCSTFT
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