Classification of Dispersion with Cross-flow Technology

Abstract

In order to confirm whether cross-flow filtration could be adopted for classification of dispersion or not, we measured transmittance performance of dispersed particles. A pigmented ink was filtered with “Pall TFF (tangential flow filtration) Membrane Cassette” at various operating conditions. Flux increased when TMP (transmembrane pressure) was increased up to 0.05 MPa. Then it leveled off regardless of pressure in up to 0.1 MPa. Flux increased when CFF (cross-flow flux rate) was increased. Transmittance performance of dispersed particles changed by operation conditions, such as TMP and CFF. Test results suggested that cross-flow filtration could be adopted for the classification of dispersion by the optimization of the operating conditions.