Influence of earth gravity on reaction engineering of tubular reactor for high concentration tungsten ion-exchange

• Published in: Transactions of Nonferrous Metals Society of China Vol. 20; no. 12; pp. 2379 - 2386
• Main Author: 赵中伟 肖露萍 郭持皓 陈星宇 陈爱良 霍广生 李洪桂
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01.12.2010; School of Metallurgical Science and Engineering, Central South University, Changsha 410083, China
• Subjects: China; downflow-feeding mode; Fluid dynamics; Fluid flow; Gravitation; reaction engineering; Reactors; Residence time distribution; Tungsten; tungsten ion-exchange; Tungsten oxides; upflow-feeding mode; 反应工程; 喂养方式; 浓度增加; 离子交换柱; 管式反应器; 钨冶金; downflow-feeding mode; reaction engineering; upflow-feeding mode; tungsten ion-exchange
• ISSN: 1003-6326
• DOI: 10.1016/S1003-6326(10)60658-9

The influence of gravity on the reaction engineering of tubular reactor is studied by analyzing the residence time distribution curves.The results show that upflow-feeding mode is more beneficial compared with downflow-feeding mode,since the flow pattern of the fluid in the reactor is closer to plug flow.The result of dynamic experiment conducted in ion-exchange of tungsten metallurgy is as good as that in reaction engineering of ion-exchange column.Whether downflow-feeding or upflow-feeding mode is adopted,breakthrough time decreases when solution concentration increases.Upflow-feeding mode has longer breakthrough time and greater improvement in adsorption capacity especially with high WO3 concentration in ion-exchange.