Influence of earth gravity on reaction engineering of tubular reactor for high concentration tungsten ion-exchange |
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Authors: | ZHAO Zhong-wei XIAO Lu-ping GUO Chi-hao CHEN Xing-yu CHEN Ai-liang HUO Guang-sheng LI Hong-gui |
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Affiliation: | School of Metallurgical Science and Engineering, Central South University, Changsha 410083, China |
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Abstract: | 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. |
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Keywords: | reaction engineering downflow-feeding mode upflow-feeding mode tungsten ion-exchange |
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