What is the Usage and Purpose of Perlite Filter Aid

What is the usage and purpose of perlite filter aid? Let's take a look together. The purpose of using the perlite filter aid is to select small particles of mineral sand from the selected perlite filter aid, which are heated by purified gas and selectively expanded in a vertical vertical kiln. The expansion is achieved through grinding and   purification to obtain a certain particle size of split- type chemical acid. The color of the perlite filter additive is white, and the product has a unit weight of 230~460   kilograms/m3. There are different standards for selecting product varieties, such as dissolution, particle level formula, and pore size formed by expansion.

     Compared with filter agents such as diatomaceous earth, perlite filter aids have advantages such as less harmful metal and non-metallic components, lightweight,   fast filtration speed, and good filtration effect. This product has been widely used in rapid filtration production practices in beverage industries such as beer,   pharmaceuticals, paint and coating industries, and petroleum industries. Introduction to the production process and general usage characteristics of perlite filtration   additives. Packaging auxiliary materials used to reduce the resistance of filter cake or filter medium during filtration operations. Usually solid powder or fibrous solid.

Assisting in filtration is only used for filtration operations to obtain clean filtrate. There are two types of filters formed by filtration. A structure with considerable stiffness does not change with increasing working pressure. It is called an incompressible filter. The structure of another type of filter cake changes with the increase of working pressure, resulting in a decrease in the liquid flow channel of the filter cake and a sharp increase in the flow resistance of the filter cake, which is called a   compressible filter cake. When filtering suspensions containing viscous particles, a tight filtration layer is often formed. Adding a perlite filter can change the filtration   structure and reduce filtration resistance.