化工学报 ›› 2006, Vol. 57 ›› Issue (6): 1482-1485.

• 材料科学与工程 • 上一篇    下一篇

微孔分散法制备超细CaCO3

吴国华;朴香兰;王玉军;朱慎林   

  1. 化学工程联合国家重点实验室(清华大学), 北京 100084
  • 出版日期:2006-06-25 发布日期:2006-06-25

Preparation of ultrafine calcium carbonate with micropore dispersion

WU Guohua;PIAO Xianglan;WANG Yujun;ZHU Shenlin   

  • Online:2006-06-25 Published:2006-06-25

关键词: 超细CaCO3, 微孔分散, 微反应器, 纳米颗粒

Abstract: Ultrafine particles of CaCO3 were synthesized with micropore dispersion in gas-liquid (slurry) systems.Experiments was conducted on carbonation of Ca(OH)2/H2O system.Micropore plate was used for the dispersion of mixed gas containing CO2.Therefore,the processes of momentum transfer, mass transfer and reaction were enhanced.The results showed that ultrafine particles with diameter about 40nm and specific surface area more than 30m2•g-1 were prepared successfully.The crystal structure of particles was characterized with BET, FTIR and TEM.

Key words: 超细CaCO3, 微孔分散, 微反应器, 纳米颗粒