The effect of fine particles on slurry transport processes

The effect of varying the proportion of fine particulates in a polydisperse phosphate slurry on pressure losses during hydraulic transportation is described. Experimental data showing the benefits which can be derived by tailoring the particle size distribution are presented. Regions of optimal operation are identified for pipe diameters of 1, 1.5 and 2 inch for solids loadings of 1.45% by volume. New qualitative phenomenological correlations are proposed to describe the results.