Analysis of Particle Size Control in the Preparation of Nano-size CaCO_3 Particles
摘要
Cubic shaped CaCO3 particles with mean size of 30-40 nm were prepared by intermittent carbonation process without any additives. It was found that the flow rate of CO2 has no distinct influence on the particle size in the range of 30-120ml·min-1 under conditions of 13℃ and stirring rate of 680r·min-1. A further increase of flow rate makes the particles larger. When CO2 flow rate is 70ml·min-1, a high agitation rate is in favor of the reduction of the crystal size in the range of 70-680 r·min-1. When flow rate is 120 ml·min-1, the particles prepared at agitation rates of 680r·min-1 and 280r·min-1 have similar sizes, while products prepared at 90r·min-1 have larger size.
引用本文（GB/T 7714）
Cao Weiliang, Jingchang Zhang. Analysis of Particle Size Control in the Preparation of Nano-size CaCO_3 Particles[J]. 未知来源, 2003.
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