Definition of the New Mean Particle Size Based on the Settling Velocity in Liquid

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

Eiji Obata²  Rondang Tambun¹  Yuichi Ohira²  Masamitsu Shimadzu² 

[1] Division of Chemical and Materials Engineering, Graduate School of Engineering, Muroran Institute of Technology;Division of Applied Sciences, Graduate School of Engineering, Muroran Institute of Technology

关键词: Mean Particle Size;    Stokes Diameter;    Settling Velocity;    Settling Particle;    Buoyancy;   

DOI  :  10.1252/jcej.11we243

来源: Maruzen Company Ltd

【 摘 要 】

References(6)Cited-By(2)New analysis and a definition of the new mean particle size have been discovered by rediscussing theory of the buoyancy weighing-bar method, which is a type of sedimentation methods. This paper proposes a new mean particle size based on the settling velocity in liquid. The velocity mean size of all particles [equation], which is the new mean particle size defined in this paper by the buoyancy weighing-bar method, is given as follow.[equation]ΔGi is the buoyancy difference mass of particles xi. Homogenous particles and a ternary mixture of spherical glass beads are used as the samples. Although the buoyancy weighing-bar method is also time-consuming, the maximum particle size and the mean particle size can be derived within a short time after initiating measurement.

【 授权许可】

Unknown