pressure filter

A pressure filter is a device used in chemistry to separate solid particles from a liquid or gas. It works by applying a force, typically greater pressure on the side where the fluid enters, which pushes the fluid through a filter medium. This medium allows the fluid to pass but retains the solid particles.12

The process requires a filter medium, the fluid containing suspended solids, and a driving force like pressure. Filter media can be thin barriers, such as filter paper or cloth, or thick barriers like sand beds. The choice of medium depends on the nature of the particles being filtered. Pressure filters are commonly used in industry and everyday life, for example, in car oil filters or vacuum cleaner bags.1