论文摘要
The comprehensive utilization and environment-friendliness of processes for recovering fresh water or valuable salt from seawater, salt-lakes, or mineral deposits are of utmost importance for sustainable development.One primitive sustainable process for recovering salt from sodium-sulfate-type brine in Yuncheng salt lake had been considered one of the greatest inventions of ancient China, however, the replaced process of mass extraction of single Na2SO4 in recent years, has reduced a large amount of residual brine.In this research, relying on the salt-forming diagram in the non-equilibrium state, the technical secrets of ancient salt processes were uncovered, and a new comprehensive utilization system was proposed and tested experimentally.The new system includes a vacuum salt-making process and a normal pressure kieserite process, which can gradually eliminate the existed waste liquid and aid in the sustainable development of the Yuncheng salt-lake.The continuous experiment of salt-making process running stably in the double salt region without double salt formation, which proves the feasibility of salt-forming diagram applied in industrial process.Thus salt-forming diagram would be extremely valuable to industry process design and control, especially, the treatment of concentrated brine.
论文目录
文章来源
类型: 期刊论文
作者: Huan Zhou,Jingjing Tang,Jian Guo,Yaping Dai,Guangbi Li,Bo Yan
来源: Chinese Journal of Chemical Engineering 2019年01期
年度: 2019
分类: 工程科技Ⅰ辑
专业: 轻工业手工业
单位: College of Chemical Engineering and Materials Science,Tianjin Key Laboratory of Marine Resources and Chemistry,Tianjin University of Science and Technology
基金: Supported by the National Natural Science Foundation of China(U1407204),the Yangtze Scholarsand Research Team in university of Ministry of Education of China(IRT_17R81),the Innovative Research Team of Tianjin Municipal Education Commission(TD12-5004),the Foundation of Tianjin Key Laboratory of Marine Resources and Chemistry(201602)
分类号: TS311
页码: 182-190
总页数: 9
文件大小: 3359K
下载量: 4
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