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首页> 外文期刊>Crystal growth & design >Hybrid Control Mechanism of Crystal Morphology Modification for Ternary Solution Treatment via Membrane Assisted Crystallization
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Hybrid Control Mechanism of Crystal Morphology Modification for Ternary Solution Treatment via Membrane Assisted Crystallization

机译:通过膜辅助结晶进行三元溶液处理晶体形态学改性的杂种控制机制

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摘要

Herein, the hybrid control mechanism of the crystal morphology modification for the treatment of a classic industrial ternary solution system (NaCl–EG–H_(2)O) via membrane assisted crystallization was demonstrated. Solution concentration and component diffusion played the hybrid role on determining the polymorphic outcome of the crystal products. Metastable zone width under various operation temperatures and solution composition was simulated and validated by experimental results. The impact of the dominating growth mechanism (diffusion controlled growth or polynuclear growth) on the crystal morphology was also investigated. An optimized operation route aimed to simultaneously improve the crystal morphology and the separation effect was then developed based on the hybrid control mechanism. The solvent loss decreased from 4.8 to 1.2 wt %. Benefitting from the improved crystal morphology, the operative duration of corresponding downstream was also shortened. Advanced membrane assisted crystallization is a promising technology toward targeted crystal morphology for high-end solid products.
机译:这里,证明了通过膜辅助结晶处理经典工业三元溶液系统(NaCl-Eg-H_(2)O)的晶体形态改性的晶体形态改性的混合控制机制。溶液浓度和组分扩散在确定晶体产物的多态结果上起杂化作用。通过实验结果模拟和验证各种操作温度和溶液组合物下的亚稳区域宽度。考虑了主导的生长机制(扩散控制生长或多核生长)对晶体形态的影响。基于混合控制机制,开发了一种优化的操作路线,然后同时提高晶体形态和分离效果。溶剂损耗从4.8降至1.2wt%。从改善的晶体形态受益,对应下游的操作持续时间也缩短。先进的膜辅助结晶是对高端固体产品的靶向晶体形态的有希望的技术。

著录项

  • 来源
    《Crystal growth & design》 |2018年第2期|共10页
  • 作者单位

    State Key Laboratory of Fine Chemicals Engineering Laboratory for Petrochemical Energy-Efficient Separation Technology of Liaoning Province School of Chemical Engineering Dalian University of Technology Dalian Liaoning 116024 China;

    State Key Laboratory of Fine Chemicals Engineering Laboratory for Petrochemical Energy-Efficient Separation Technology of Liaoning Province School of Chemical Engineering Dalian University of Technology Dalian Liaoning 116024 China;

    State Key Laboratory of Fine Chemicals Engineering Laboratory for Petrochemical Energy-Efficient Separation Technology of Liaoning Province School of Chemical Engineering Dalian University of Technology Dalian Liaoning 116024 China;

    State Key Laboratory of Fine Chemicals Engineering Laboratory for Petrochemical Energy-Efficient Separation Technology of Liaoning Province School of Chemical Engineering Dalian University of Technology Dalian Liaoning 116024 China;

    Petrochemical Energy-Efficient Separation Technology Engineering Lab of Liaoning Province Dalian Liaoning 116024 China;

    State Key Laboratory of Fine Chemicals Engineering Laboratory for Petrochemical Energy-Efficient Separation Technology of Liaoning Province School of Chemical Engineering Dalian University of Technology Dalian Liaoning 116024 China;

    State Key Laboratory of Fine Chemicals Engineering Laboratory for Petrochemical Energy-Efficient Separation Technology of Liaoning Province School of Chemical Engineering Dalian University of Technology Dalian Liaoning 116024 China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 晶体学;
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