文章摘要
王光龙,张保林.超声对硫酸钙结晶过程影响的研究[J].,2003,22(4):21-24,10
超声对硫酸钙结晶过程影响的研究
The effect of ultrasonic wave on calcium sulfate crystallization
  
中文摘要:
      研究了超声对硫酸钙结晶过程的影响。实验表明,与对比样相比,超声可以明显缩短成核时间,改变结晶量,影响结晶在不同方向的成长速度,使结晶的形状比例(长/宽)减小。粒度分布的定量测定和计算显示,超声使硫酸钙结晶粒度分布范围由200μm缩小到100μm,体积平均直径从69.95μm降到26.59μm;硫酸钙的成核速率提高2.74倍,但结晶成长速率减少到对比样的40.9%。两者叠加的结果体现为结晶过程总速率的增加。
英文摘要:
      The effect of ultrasonic wave on calcium sulfate crystallization is studied. Experimental results show that, comparing with the reference sample, nucleation time is noticeably decreased, the crystal quantity changed, the growth rate on different directions effected and the crystal length & width ratio reduced. The quantitative measure and calculation of granularity distribution indicated that, with ultrasonic wave, the sphere of granularity is reduced from 200μm to 100μm and the volume mean diameter of crystal from 69.95μm to 26.95μm, the growth rate of crystal only 40.9% of that of the reference sample, but the nucleation rate 2.74 times higher. The total rate of the crystallization is increased as combining effect of the two rates change.
DOI:10.11684/j.issn.1000-310X.2003.04.006
中文关键词: 超声  硫酸钙  结晶
英文关键词: Ultrasonic wave  Calcium sulfate  Crystallization
基金项目:
作者单位
王光龙 郑州大学化工学院 郑州 450002 
张保林 郑州大学化工学院 郑州 450002 
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