Perlite Filter

Pearlite filter aid is white in color, with a volume weight of 230-460kg / m3. According to the volume weight, grain size distribution and pore diameter formed by expansion, the product varieties are classified.

Compared with silicon bath soil and other filter aids, the product has the advantages of less harmful metal and non-metal components, light volume weight, fast filtering speed and good filtering effect.

The product has been widely used in beer and other beverage industry, pharmaceutical industry, paint and coating industry, oil industry and other rapid filtration production practice.

Brief introduction of production process and general use characteristics of perlite filter aid

After perlite expansion, it is carefully grinded through many grades to make the particle surface uneven, so that the filter cake forming process can squeeze each other, and the final product surface is zigzag, There are many in-line channels, which are small enough to block micron sized particles, but at the same time, they have 80% - 90% voidage, and retain a high continuous permeability.

Perlite filter aid is a white solid powder composed of inert amorphous glass particles. The main components are potassium, sodium and aluminosilicate. It does not contain any organic matter. It can be sterilized by high temperature combustion in the production process, and its bulk density is 20% lighter than diatomite.

Gk-110 perlite filter aid particles are very irregular and curly. The filter cake formed has a porosity of 80% - 90%. Each particle has many pores, so it can be filtered quickly and catch ultra-small particles below 1 micron. The special advantage of perlite filter media is to retain solid while maintaining high liquid flow rate. Its chemical stability is excellent and there is no potential pollutant. The content of heavy metal ions is generally 0.005%, so it can be used in food grade filtration.