Document Type

Thesis

Date of Award

Spring 5-31-1967

Degree Name

Master of Science in Chemical Engineering - (M.S.)

Department

Chemical Engineering

First Advisor

Jerome J. Salamone

Second Advisor

John E. McCormick

Third Advisor

Deran Hanesian

Abstract

This investigation attempts to obtain a better understanding of flow behavior of a pigmented dispersion in a ball mill.

A power-law fluid model was used to approximate the rheological behavior of the milled fluid. To correlate power data on each of 276 milled dispersions, this model was used together with power number, Reynolds number, Froude number; and some geometrical variables.

Laboratory size stainless steel jars containing stainless steel balls from 1/8 to 3/4 inches in diameter were used to Mill a pigment/binder/solvent system at various speeds for different periods of time.

A correlation of power number as a function of a modified Reynaldo number, Froude number and mill diameter-to-ball diameter ratio was found.

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