Perlite Filter Aid Food Grade High Permeability Edible Oil Refining Filtration
Our perlite filter aid is produced from natural volcanic glass perlite ore. The ore is crushed, screened and expanded in a high-temperature furnace (approx. 760-1,100°C), then milled, classified and optionally flux-calcined into controlled permeability grades. The final product is a white, lightweight, highly porous powder with a sponge-like microstructure.
The unique porous structure physically traps suspended solids while allowing liquid to pass through rapidly, achieving an ideal balance between filtration clarity and flow rate. The material is chemically inert — insoluble in water, resistant to most acids and alkalis (except hydrofluoric acid), and does not react with or alter the filtrate.
Multiple grades are available with different permeability values to match various liquid viscosities and clarity requirements, from coarse grades for fast flow to fine grades for high polish. They support both precoat (pre-coating a filter cake on the filter medium) and body feed (continuous dosing into the liquid) filtration processes.
Widely used for clarification of edible oil, syrup and beverages, as well as pharmaceutical, chemical, drinking water and wastewater filtration. Suitable for food-contact applications with proper grade selection. Available in small bags and bulk packing; large-volume orders support custom grade and private-label packing.
Important note: Fine powder — wear dust mask during handling to avoid inhalation. Food-contact use requires selecting compliant grade per application. Not for direct consumption.
5.0
Product name:
Perlite Filter Aid
Brand:
QianLi
Place of Origin:
China
Packing:
Woven Bags / Bulk Bags/ Custom Packaging
ODM & OEM:
Available
Minimum order quantity:
100kg
design customization
Please fill out the form below to request a quote or to request more information about us. Please be sure to upload customized requirement documents or pictures, and we will get back to you as soon as possible with a response. we're ready to start working on your new project, contact us now to get started.
Please fill out the form below to request a quote or to request more information about us. please be as detailed as possible in your message, and we will get back to you as soon as possible with a response. we're ready to start working on your new project, contact us now to get started.
Appearance features
1. White to off-white powder: Features a uniform, clean white color, ensuring a high-purity final product that does not affect the appearance of the filtrate.
2. Sponge-like porous microstructure: Characterized by a unique honeycomb-like microporous structure with a high pore volume, which serves as the core mechanism for efficiently trapping suspended solids.
3. Lightweight with low bulk density: Possesses an apparent density of approximately 0.10–0.25 g/cm³; its loose, lightweight nature allows for a large filtration surface area per unit of weight.
4. Dry, free-flowing particles: The powder remains loose without clumping, ensuring uniform distribution during pre-coating or direct dosing, as well as consistent metering.
5. Chemically inert and stable: Insoluble in water and resistant to acids and bases (with the exception of hydrofluoric acid); it does not react with the filtrate.
6. Consistent batch-to-batch quality: Produced via standardized calcination and classification processes, ensuring uniform permeability and particle size distribution across different batches.
B3 (19)
B4 (11)
A4 (18)
Advantages
1. Excellent Clarification and Flow Rate: The porous structure strikes an optimal balance between capturing suspended solids and maintaining high filtration flow rates, ensuring both filtrate clarity and production throughput.
2. Chemically Inert—Preserves Filtrate Integrity: Insoluble and non-reactive, it does not leach substances or introduce odors and impurities, thereby maintaining the original composition and flavor profile of the filtrate.
3. Reliable for Food and Beverage Applications: When the appropriate grade is selected, it is suitable for the filtration of food and beverage products—such as beer, wine, fruit juice, and edible oils—ensuring product safety.
4. Cost-Effective Filtration: Lightweight and highly efficient, it provides a large filtration surface area per unit of material used, keeping overall filtration costs manageable.
5. Flexible Supply and Customization: Available in various formats, from small bags and bulk bags to full container loads. We also offer customized product grades, bespoke packaging/labeling, and OEM private-label services.
Building Materials Industry
Cement admixtures, concrete additives, refractory materials, raw materials for thermal insulation building materials
Application scenarios
1. Alcoholic Beverage & Drink Clarification
Clarification of beer, wine, fruit juice and beverages to remove yeast, colloids and suspended impurities for better brightness.
2. Edible Oil & Condiment Filtration
Filtration after edible oil bleaching & deodorizing, syrup and condiment clarification to remove trace suspended solids and extend shelf life.
3. Pharmaceutical & Chemical Liquid Filtration
Fine filtration of pharmaceutical solutions, chemical intermediates, solvents and high-purity liquids to remove particulate impurities.
4. Drinking Water & Wastewater Treatment
Used as filter aid in drinking water purification and industrial / municipal wastewater treatment for better solid-liquid separation.
FAQ
1
What is perlite filter aid made of?
It is produced from perlite ore through crushing, high-temperature expansion, grinding, and classification. It is a processed natural mineral product, not a chemically synthesized material.
2
What does permeability mean, and how should I choose the right grade?
Permeability refers to the rate at which liquid can pass through the filter cake. For high-viscosity liquids or applications requiring high flow rates, choose a coarse-grade, high-permeability product. For applications requiring high clarity and low turbidity, choose a fine-grade, low-permeability product; a combination of coarse and fine grades can also be used.
3
How are "pre-coating" and "body feed" used?
Pre-coating involves establishing an initial layer of filter aid (a "filter cake") on the filter screen or plate using clean water or the filtrate itself. Body feed involves continuously adding filter aid to the liquid being filtered to prevent the filter cake from becoming clogged. These two methods can be used individually or in combination.
4
What should be kept in mind regarding storage?
Store in a dry, well-ventilated warehouse. Keep packaging sealed to prevent moisture absorption and clumping. Avoid storing alongside corrosive chemicals.
5
What are the safety requirements during handling?
As this product is a fine powder, wear a dust mask and protective goggles to avoid inhaling dust. Ensure the work area is well-ventilated, and reseal the packaging promptly after opening.
6
Can perlite filter aid be reused?
Perlite filter aid is a single-use consumable; once the filter cake has trapped impurities, it must be removed and replaced. The spent filter cake should be disposed of in compliance with local regulations.
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