Environmentally Friendly Synthesis of Magnetic Iron Oxide Nanoparticles with Controlled Particle Size and Agglomeration

开发了一种可以在环境友好条件下提供磁性氧化铁（磁铁矿）纳米颗粒的合成方法。在该工艺中，使用工业上用作颗粒材料微粉化研磨机的水平翻滚球磨机作为反应器。通过合成实验和磨球运动的数值模拟，分析了磁铁矿的形成。其结果是，反应机理是明确的，可以控制的初级粒子和聚集体的大小。

A synthesis process which can provide magnetic iron oxide(magnetite) nanoparticles under environmentally friendly conditions has been developed. In this process, a horizontal tumbling ball mill, which is industrially used as a grinding machine for micronization of particulate materials, is used as a reactor. The formation of magnetite was analyzed through the synthesis experiments and the numerical simulation of balls behavior in the mill. As a result, the reaction mechanism was clarified and the sizes of primary particles and aggregates could be controlled.