Precipitation characteristics of barium sulfate in stirred reactor using electrical resistance tomography

被引：0
|
作者：
Liu X. [1 ]
Jin H. [1 ]
Yang B. [1 ]
Yang S. [1 ]
He G. [1 ]
机构：
[1] Department of Chemical Engineering, Beijing Institute of Petrochemical Technology, Beijing
来源：
Jin, Haibo (jinhaibo@bipt.edu.cn) | 2016年 / Central South University of Technology卷 / 47期
基金：
中国国家自然科学基金;
关键词：
Barium sulfate; Crystallization; Electrical resistance tomography (ERT); Precipitation;
D O I：
10.11817/j.issn.1672-7207.2016.03.040
中图分类号：
学科分类号：
摘要：
The barium sulfate crystallization behavior was researched by measuring the solution conductivity changes with electrical resistance tomography (ERT). A conductivity measuring device was established, for the reaction of barium chloride and sodium sulfate in different concentration solutions, the change of conductivity in the process of homogeneous barium sulfate crystallization in real-time was detected. The conductivity change curve was analyzed. The results show that the crystallization process can be divided into induced stages, the nucleation stage and growth stage. The batch crystallization reaction of barium sulfate is mainly completed in 10-15 min, the nucleation control time is shortened significantly, and it has little effect on the crystal growth process, with the increase of solution concentration. Using electrical resistance tomography to study barium sulfate crystallization behavior has a high sensitivity. © 2016, Central South University of Technology. All right reserved.
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页码：1024 / 1029
页数：5
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