TREATMENT OF LOW-CONCENTRATION LYE OF RED MUD MOUND
来源期刊：中南大学学报(英文版)1999年第2期
论文作者：Zhang Qixiu Luo Aiping Shi Chongguang Zheng Qicai
文章页码：73 - 77
Key words：electrodialysis; dealuminum with CO2; recovery; alkali; alumina
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.
