Filtration solutions
Reliable filtration is needed across beverage, pharma, energy, industrial & environmental applications: High-performance mineral filter aids are crucial.
Imerys is a trusted global supplier of mineral-based filter aids used in industries where clarity, purity and efficiency matter. Our filtration solutions, diatomaceous earth (DE) and expanded perlite, enhance solid-liquid separation performance in systems from juice clarification to lithium extraction, edible oil purification and wastewater treatment.
The use of our filter aids is the most economical and versatile filtration technology on the market. The filtration outcome can be enhanced by simply changing the grade and amount of filter aid, without requiring any changes to the process equipment.
Why use mineral filter aids?
Filter aids create a porous, stable filter cake on a filter medium (such as a screen or cloth), trapping fine particles within the pore structure while allowing the fluid to continue to pass through. Imerys’ mineral solutions improve:
- Extended Filtration Cycles by enhancing Filtration speed and throughput
- Particle retention while providing required product clarity
- Cake stability and drying time
- Filter system lifespan
- Aid in the cleaning of the filtration system
- Grades certified for USP [Pharmacopia], FDA, Codex and NSF use
- Purified Silaceous Earth
We work with multiple industries to provide tailored filtration performance using commercial-grade products certified to the Food Chemical Codex. We also offer high-purity grades that service the USP-NF monographs for high-purity applications.
Filtration solutions by application
Systems used:
- Rotary Vacuum filters
- Horizontal pressure leaf filters
- Vertical pressure leaf filters
- Candle filters
- Recessed plate and frame filters
- Many other types of pressure filters
Filtration needs:
- Remove yeast, protein and hop residues
- Preserve flavor, color and mouthfeel
Imerys minerals in action:
- Diatomaceous earth (DE) offers high particle retention and consistent flow rate, crucial for bright beer filtration
- Perlite is used for lightweight pre-coating and intermediate filtering, reducing spent material weight and disposal cost
- Cynergy - designed for the removal of soluble proteins in beer
Filtration systems used:
- Lenticular filters
- Plate and frame
- Sheet filters
Filtration needs:
- Retention of fine particulates, tartrates and microbes
- Clarity without compromising mouthfeel or aroma
- Flexible grades for red, white and sparkling wines
Mineral benefits:
- Provides bright clarification without stripping flavors or color
- Enhances stability and microbial control pre-bottling
Filtration systems used:
- Horizontal leaf filters
- Rotary drum filters
- Pressure filters
Filtration needs:
- Removal of pulp, pectin, starch and microbial load
- Bright appearance and shelf stability
- Compatibility with high-acid and high-sugar products
Minerals in action:
Diatomaceous earth for high-capacity solids loading with superior clarity
Perlite with lightweight prepcoat option for fast cycles
Filtration systems used:
- Sparkler filters
- Candle filters
- Plate & frame filters
Filtration needs:
- Ultra-fine filtration of APIs, vitamins, and antibiotics
- Compliance with USP, EP, FDA, and GMP standards
- Bioburden reduction and high-purity requirements
Imerys minerals in action:
- Diatomaceous earth: Low extractables, sterile-grade filter aids
- Validated for pharmaceutical, nutraceutical, and vaccine filtration
- Celpure
- AW USP-NF
Filtration systems used:
- Rotary vacuum filters
- Pressure leaf and disc filters
- Filter presses
Filtration needs:
- Removal of pigments, fillers, catalysts, and suspended solids
- Resistance to harsh chemical and thermal conditions
- Continuous, high-volume system compatibility
- Blood plasma
Imerys minerals in action:
- Diatomaceous earth: Reliable performance across oil, resin, and polymer streams
- Perlite: Consistent flow and chemical resistance
Filtration systems used:
- Candle and pressure leaf filters
- Rotary vacuum filters
Filtration needs:
- Removal of soaps, glycerin, catalyst fines, and feedstock impurities
- Clarity and quality to meet ASTM/EN biodiesel standards
- Adaptability to feedstock variability (soy, waste oils, etc.)
Imerys minerals in action:
- Cynersorb for Biofuel: Optimized for high impurity loads
- Celite-BF for EMEA Biofuel market
- DE and Perlite: Flexibility to remove different contaminants with the wide range of permeability available
Filtration systems used:
- Drum filters
- Plate and frame
- Filter presses
Filtration needs:
- Removal of silica, manganese, and other contaminants in lithium brine and hydroxide refining
- High throughput with consistent purity
- Compatibility with high-pH and corrosive process streams
Imerys minerals in action:
- Diatomaceous earth: High-flow, high-purity DE filter aids
- Perlite: Low-density filtration for improved throughput
Filtration systems used:
- Pressure leaf filters
- Plate & frame filters
- Rotary drum filters
Filtration needs:
- Removal of phospholipids, soaps, waxes and heavy metals in vegetable/seed oil refining
- Brightness, long shelf life, and neutral flavor retention
- Food-safe filtration for edible use
Imerys minerals in action:
- Diatomaceous earth: Ideal for winterization and bleaching stages
- Perlite: Low-oil retention for cost savings
Filtration systems used:
- Pressure and gravity filters
- Sand filter media support
- Cartridge filters with precoat
Filtration needs:
- Removal of suspended solids, algae, bacteria, and iron/manganese
- Municipal, industrial, and potable water clarity
- NSF-certified materials for safe water use
Imerys minerals in action:
- Diatomaceous earth (DE): Effective turbidity and contaminant removal
- Perlite: Lightweight, high-surface-area filter aid
Filtration systems used:
- Pressure sand filters with DE or perlite precoat
- Regenerative media filters
- Vertical and horizontal pressurized filter tanks
Filtration needs:
- Removal of fine particles, oils, algae, and bacteria
- Crystal-clear water with minimal chlorine use
- Safe, effective alternatives to sand media
- Lightweight, easy-to-dispose spent filter cake
Imerys minerals in action:
- Diatomaceous earth precoat for superior particle retention
- Expanded perlite solution that’s NSF-certified and low-density
Why work with Imerys?
- Application-specific mineral grades
- Global supply with local technical support
- Food, pharma, and environmental compliance (USP, FDA, NSF, Codex)
- Waste reduction and improved operational efficiency
