Liquid-Liquid Dispersion with Mechanical Agitation:Effect of the Difference of Specific Gravity
スポンサーリンク
概要
- 論文の詳細を見る
The purpose of this paper is to investigate the effect of the difference of the specific gravity on the dispersion process with mechanical agitation.<BR>The apparatus consists of a cylindrical vessel (<I>D<SUB>T</SUB></I> =150 mm) made of clear acrylic resin and Rushton-type impeller (<I>D<SUB>I</SUB></I>=49 mm). Water and a mixture of n-C<SUB>7</SUB>H<SUB>16</SUB> and CCl<SUB>4</SUB> were used as the continuous phase and the dispersed phase. The specific gravity of the dispersed phase was prepared for the values of 1.000, 1.050, 1.100, 1.150 and 1.200 (gr/cm<SUP>3</SUP>) respectively. Agitation was continuously carried out at 530 rpm for 60 min. The photographs of the droplets were concurrently taken by the direct and the indirect methods.<BR>The following results were obtained : <BR>(1) According as the specific gravity of the dispersed phase increased, average diameter became the smaller value.<BR>(2) It was found that the direct method was better than the indirect one, when there was the difference of specific gravity on liquid-liquid dispersion.<BR>(3) Experimental equation for the relationship between the energy efficiency of agitation η and the agitation time θ was as follows.<BR>log η=α'log θ+β'
- Japan Society of Colour Materialの論文