摘要
研究了工业废料电石泥的可利用性,并实现了其向平均粒径约为100nm超微碳酸钙的实用性转化。本文中对比了涡流高剪切法和苛化法制备超微碳酸钙的优劣,并证实前者比后者优越。采用激光粒度分析仪、TEM等手段对颗粒形态与结构进行表征,证实上述方法可靠可行。在上述实验结果的基础上,本文中首次将第四统计力学群子统计理论用于解释碳酸钙的微观结构和剪切速率之间的关系,发现剪切破碎速率对碳酸钙粒径有很大影响。
The recycle of calcium carbide residue is studied by the newly turbo-flow equipment, which is taken into the useful ultra-fine CaCO3 powder with the average particle size less than 100 nm. It is approved that the methodology of turbo-flow is superior to that of basification. The prepared particles are characterized by laser particle sizes distribution and TEM.Basing on above research results,JRG sub-cluster statistics theory is first used to explain the relationship between the microstructures of CaCO3 and the rate of shear. The rate of shear affects the particle size of CaCO3.
出处
《中国粉体技术》
CAS
2004年第6期13-16,共4页
China Powder Science and Technology
基金
国家教育部基础研究重要课题
编号:99014。
关键词
电石泥
超微碳酸钙
涡流高剪切法
苛化法
calcium carbide residue
ultra-fine calcium carbide
turbo-flow process
basification
