Filters for applications in etching processes are required to be capable of withstanding a broad range of aggressive chemicals, from strong acids to strong bases or strong solvents. The filters must exhibit low levels of extractables under the operating conditions of this broad range of chemicals, and must not be susceptible to releasing fibres. The […]
In the dry filtration processes that use pads or panels to capture dust, the filter surface is basically flat – one side of the filter sheet in a pad filter, or the upstream surface of a pleated medium panel. The group of filter types to be described next capture the dust inside or on the […]
In the fixed bed centrifuges just described, the separated solids form a cake in the basket that is stationary with respect to the basket while filtration is occurring, and the solids then have to be dug out of the basket in some way. In the moving bed centrifuges, on the other hand, the separating cake […]
