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Abstract
Addition of polyacrylamide (264 ppm) to a 2 wt% water-clay suspension results in significant changes in the centrifugal separation efficiency of a 10 mm hydrocyclone operating at entrance Reynolds numbers larger than 104. Because conical hydrocyclones have several flow structures which can be significantly influenced by small amounts of a high molecular weight polymer, the observed physical phenomena may be related to the underlying viscoelastic behavior of dilute polymer solutions.