Synthesis of Nano-CaCO3 by Simultaneous Absorption of CO2 and NH3 into CaCl2 Solution in a Rotating Packed Bed

摘要：

This article presents investigations on the synthesis of nano-CaCO3 by the simultaneous absorption of CO2 and NH3 into CaCl2 solution in a rotating packed bed (RPB). The influence of the experimental parameters including the high gravity level, gas volumetric flow rate, liquid volumetric flow rate, and initial CaCl2 concentration on the particle size of CaCO3 were studied. Transmission Electron Microscope image of the as-prepared CaCO3 shows that the mean size of the nano-CaCO3 particles was about 50 nm with a particle size distribution (PSD) of 10 - 80 nm. X-ray Diffraction pattern demonstrates that the nano-CaCO3 has a calcite crystal structure.

关键词： Rotating packed bed Nano-CaCO3 CaCl2 Simultaneous absorption NH3 and CO2

作者: Bao-Chang Sun Xue-Mei Wang Jian-Ming Chen Guang-Wen Chu Jian-Feng Chen Lei Shao

作者单位: Research Center of the Ministry of Education for High Gravity Engineering and Technology,Beijing University of Chemical Technology, Beijing 100029, P. R China Key Lab for Nanomaterials, Ministry of Education, Beijing University of Chemical Technology,Beijing 100029, P. R. China

会议类型: 国内会议

会议名称: 中国颗粒学会超微颗粒专委会2011年年会暨第七届海峡两岸超微颗粒学术研讨会

会议地点: 辽宁丹东

会议语种:英文

页码: 40-49

在线出版日期: 2011-08-08（万方平台首次上网日期，不代表论文的发表时间）