Quartz crystal microbalance as a tool for scale deposition monitoring in Bayer process conditions

F. Brisach; A. Brisach-Wittmeyer; N.-A. Bouchard; H. Menard

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Quartz crystal microbalance as a tool for scale deposition monitoring in Bayer process conditions

机译：石英晶体微量天平作为拜耳工艺条件下水垢沉积监测的工具

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This paper describes the study of bayerite or gibbsite scale formation and growth from supersaturated sodium aluminate solutions using a quartz crystal microbalance. Analysis of frequency vs time curves and scanning electron microscopy images allowed us to propose a surface nucleation mechanism that leads to cementation of particles produced by catastrophic secondary nucleation. We also highlighted the influence of the filtration of the supersaturated sodium aluminate solution step on the scale nucleation kinetics. It was observed that use of filter with porosity below 2.5 urn delays the formation of scale.

机译：本文介绍了使用石英晶体微量天平从过饱和铝酸钠溶液中形成钙铝石或三水铝石垢和生长的研究。频率-时间曲线和扫描电子显微镜图像的分析使我们能够提出一种表面成核机制，从而导致由灾难性二次成核产生的颗粒胶结。我们还强调了过饱和铝酸钠溶液步骤的过滤对水垢成核动力学的影响。观察到，使用孔隙率低于2.5微米的过滤器会延迟水垢的形成。

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来源
《Journal of Crystal Growth》 |2012年第1期|p.176-181|共6页
作者
F. Brisach; A. Brisach-Wittmeyer; N.-A. Bouchard; H. Menard;
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作者单位

Department of Chemistry, Universite de Sherbrooke, Sherbwoke, Quebec, Canada J1K 2RI;

Department of Chemistry, Universite de Sherbrooke, Sherbwoke, Quebec, Canada J1K 2RI,Rio Tinto Alcan, Arvida Research and Development Centre, Quebec, Canada C7S 4K8;

Rio Tinto Alcan, Arvida Research and Development Centre, Quebec, Canada C7S 4K8;

Department of Chemistry, Universite de Sherbrooke, Sherbwoke, Quebec, Canada J1K 2RI;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
原文格式 PDF
正文语种 eng
中图分类
关键词
A1. surface nucleation mechanism; A1. induction time; B1. bayer liquor; B3. quartz crystal microbalance;

机译：A1。表面成核机理;A1。诱导时间;B1。拜耳酒B3。石英晶体微量天平;

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机译：使用石英晶体微天平作为分析工具，监测干燥环境和加压条件下的颗粒/表面和颗粒/颗粒相互作用：使用常见吸入器组件的研究

Quartz crystal microbalance as a tool for scale deposition monitoring in Bayer process conditions

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