We are manufacturers, exporters and suppliers of a wide range of filter aid products, perlite filter aid and filter aid manufacturer. These filter aid products use perlite as the filtering agent. Our perlite-based filter aids are uniform, low density filter aids for economical liquid and/or solid separation.
Perlite is a generic name for naturally occurring siliceous or volcanic rock readily available throughout the world. A unique property of perlite is that it expands up to 20 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 8500C (16000F), this water vaporizes and causes the softened rock to expand. Tiny glass-like bubbles are produced which account for the lightweight, pure whiteness and exceptional physical properties of expanded perlite.
It is these light weight glass - like 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. However, their solubility in strong alkalies varies depending on temperature and contact time.
We offer a wide range of perlite filter products. The perlite is sourced from the best mines all over the world. Our filter aids are sterile and inert and are widely used for filtering liquids in the beverage, food and pharmaceutical industries. They do not impart taste, odour or colour. The quality and purity of food grade substances is retained and enhanced after filtration through our filters.
Our filter products offer users the following benefits
Major Cost Advantage
Our perlite filter aids provide the user with a density advantage of from 20 to 50% over other filter aids. This is an important consideration when comparing costs. Perlite filter cake density is only 110 to 270 kg/m3 (7 to 17 lb/ft3). The dry density of perlite filter aid ranges from 100 to 200 kg/m3 (6 to 12 lb/ft3). Experience in a variety of applications in many industries has shown that users of filter aids can substantially reduce filtration costs without sacrificing performance by converting to perlite filter aids.
Usable With Standard Equipment
Our filter aids can be used with both pressure and vacuum filtration equipment by merely replacing present filter aid. Plant or laboratory filtration studies will enable the selection of the optimum filter aid to be specified and the dosage that is required. As leading perlite filter aid manufacturers, we have wide experience in a variety of different filtration applications. Of special interest is the fact that when perlite filter aids are used with rotary vacuum filters, filter cakes exhibit less cracking than when other filter aids are used.
High flow Rates
Due to their unique physical structure, perlite filter aids offer high flow rates with optimum clarity. They are especially applicable to highly viscous liquids such as syrup or gelatinous slurries requiring fast flow rates. Productivity, clarity and flow rates may be increased through the use of perlite filter aids.
Full Range of Grades
We manufacture perlite filter aids in a wide range of grades to economically meet the flow rate and clarity requirements of almost every industry.
Easy Cake Release
Because they remain porous and do not compact, perlite filter aids afford easy cake release at the completion of a filtration cycle. Not only does this facilitate filter cleaning, but it reduces manpower requirements and increases productivity.
Use of Spent Filter Cake as Animal Feed
A unique benefit to manufacturers using perlite filter aids in food processing is that spent filter cake is used as a component in animal feed in many countries throughout the world. This reduces spent filter cake disposal costs. In the U.S. this application has been approved by the Association of American Feed Control Officials (AAFCO).
In the past 30 years, perlite filter aids have gained acceptance in almost every industry concerned with the separation of liquids and solids. Our perlite filter aids are being used in the following industries: