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首页> 外文期刊>Chemical Engineering Research & Design: Transactions of the Institution of Chemical Engineers >CONTINUOUS SYNTHESIS OF TITANIUM DIOXIDE FINE PARTICLES USING A SLUG FLOW AGEING TUBE REACTOR
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CONTINUOUS SYNTHESIS OF TITANIUM DIOXIDE FINE PARTICLES USING A SLUG FLOW AGEING TUBE REACTOR

机译：连续合成二氧化钛的好粒子使用弹状流管老化的反应堆

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摘要

A continuous reactor system for titanium dioxide fine particle synthesis has been proposed, in which a packed bed for the nucleation of fine particles was connected in series with a slug flow ageing tube for growth of the particles. By injection of nitrogen gas into the inlet of the ageing tube, the continuous liquid feed was separated into small portions so that slug flow was formed. Spherical unagglomerated fine particles of titanium dioxide were obtained using this reactor system, and the effectiveness of using slug flow was elucidated. The effects of some operation variables such as liquid flow rate in the ageing tube and tube diameter were also examined. The particles obtained under the slug flow condition had narrower particle size distribution than those under a laminar flow condition at any flow rate. Particle geometric standard derivation (GSD) was found to be as small as that obtained in a batch process. No quality difference in particle GSD exists between ageing tubes of 2 mm i.d. and 3 mm i.d. for the slug flow. Chronomal analysis assuming diffusion-controlled growth was applied and was found to be effective for simulating a continuous particle synthesis process of titanium dioxide. [References: 9]
机译：二氧化钛的连续反应器系统细粒合成提出了,成核的填充床的罚款颗粒连接在系列蛞蝓流管老化对粒子的增长。注入氮气的入口管老化,连续液体饲料分成一小部分弹状流成立。二氧化钛粒子得到使用这个反应堆系统的有效性使用弹状流是阐明。液体流量等一些操作变量在老龄化管和管直径也检查。水流条件有更窄的粒径比在层流分布在任何流量条件。标准推导(德牧)被发现小如,在一个批处理过程中获得的。在粒子之间存在德牧质量差异管老化2毫米的身份证和3毫米的身份证弹状流。diffusion-controlled增长并被应用发现连续模拟是有效的粒子合成二氧化钛的过程。(引用:9)

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