Abstract
Abstract A theoretical study is made of the so-called layering/crushing agglomeration process in a rotating conical drum under steady-state continuous flow conditions. A particular application is the separation of bitumen from the solid particles in oil sands, where the nonwetting liquid is a bitumen-solvent mixture and the wetting liquid is water. It may be assumed that the water is completely imbibed by the agglomerating granules (particles), so that the system consists of granules suspended in the nonwetting liquid. In the layering/crushing process, the granules are divided into two nonoverlapping size distributions, the small crushed granules and the large granules on which the layering takes place. The agglomeration process therefore becomes a complicated example of three-phase flow. The three phases are the continuous nonwetting liquid and the two granular phases. The steady-state mass balance equations for the two groups of granules in the rotating conical drum can be integrated approximately. The ...
Published Version
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