Perlite Filter Aid
Industrial Processors Limited
Filtration, Water Filtration, Filtration Systems
Perlite is a generic name for a naturally occurring siliceous volcanic rock. A unique property of perlite is that it expands up to twenty times its original volume when it is heated to its softening range.
This expansion process is caused by the presence of water in the crude rock. When perlite ore is rapidly heated to above 850c, this water vaporizes and causes the softened rock to expand. Tiny glass like bubbles are produced which account for the light weight and exceptional physical properties of expanded perlite.
It is these light weight glasslike bubbles that are milled and classified under stringent quality control conditions to produce perlite filter aids. This material exhibits a unique, jagged interlocking structure with myriads of microscopic channels affording optimum flow rates and clarities for a wide variety of applications. Perlite filter aids do not impart taste, colour or odour to liquids being filtered and they are virtually insoluble in mineral and organic acids at all temperatures. Solubility in strong alkalis varies depending on temperature and contact time.
, Filtration Systems
, Water Filtration