| 碳酸锂常压鼓泡碳化宏观反应动力学研究 |
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| 引用本文： | 伊文涛,闫春燕,马培华. 碳酸锂常压鼓泡碳化宏观反应动力学研究[J]. 化工矿物与加工, 2009, 38(3) |
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| 作者姓名： | 伊文涛 闫春燕 马培华 |
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| 作者单位： | 枣庄学院化学化工系,山东,枣庄,277160;中国科学院青海盐湖研究所,青海,西宁,810008 |
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| 基金项目： | 国家科技攻关计划滚动支持项目 |
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| 摘 要： | 基于Li2CO3与CO2在水溶液中的反应,在浆态鼓泡床反应器内对粗Li2CO3常压鼓泡碳化反应的动力学进行了实验研究,且对影响碳化过程的诸因素进行了深入的研究和探讨.结果表明,Li2CO3的转化率随表观气速的增大而增大,随反应温度、固体质量浓度、颗粒粒径、反应器中浆料填充度的增大而减小.动力学研究表明:在反应的前期过程受控于化学反应,随反应的进行该过程逐渐转变为内扩散控制.通过对实验数据的拟合得出了实验范围内过程的宏观动力学方程.该研究为Li2CO3碳化工艺条件的优化和反应器的放大设计等提供了基础效据.
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| 关 键 词： | Li2CO3料浆 鼓泡碳化 常压 宏观动力学 |
Macro-kinetics study on bubbling carbonation of Li_2CO_3 slurries at atmospheric pressure |
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| YI Wen-tao,YAN Chun-yan,MA Pei-hua. Macro-kinetics study on bubbling carbonation of Li_2CO_3 slurries at atmospheric pressure[J]. Industrial Minerals and Processing, 2009, 38(3) |
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| Authors: | YI Wen-tao YAN Chun-yan MA Pei-hua |
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| Affiliation: | 1.Department of Chemistry and Chemical Engineering;Zaozhuang University;Zaozhuang Shandong 277160;China;2.Qinghai Institute of Salt Lakes;Chinese Academy of Sciences;Xining Qinghai 810008;China |
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| Abstract: | Based on the reaction of Li2CO3 with CO2-water solutions to convert the former to water-soluble LiHCO3,macro-kinetics on Li2CO3 carbonation by bubbling CO2 at atmospheric pressure was studied.The experiments were carried out in a slurry bubble column reactor with inner diameter 0.05 m and height 0.5 m.Parameters that may affect the dissolution of Li2CO3 were investigated.It was found that the dissolution rate of Li2CO3 increased with increasing CO2 flow rate,and with decreasing Li2CO3 particle size,reaction... |
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| Keywords: | Li2CO3 slurries bubbling carbonation atmospheric pressure macro-kinetics |
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