Purifying oils with natural and activated clays
Product Range
Get a quote
BENTON-earths bleaching earth are key processing aids for edible oil refineries and bio-fuel processors, designed to produce clear, clean and stable outputs. The range is organised into three families: Natural, Performa, and Ultima. Products originate from selective mineral deposits in Kutch and North Karnataka, chosen for high surface area and micro-pore volume suited to removing chlorophyll, colour bodies, soaps and other impurities.
Applications
- Refining of edible oils including palm, sunflower, canola, coconut, soybean, rice bran, cottonseed, corn and palm kernel.
- Effective removal of carotenoids, chlorophyll, soaps, peroxides, metal traces, crop residues and foreign matter.
- Purification for bio-fuels.
Benefits
- Efficient impurity removal while preserving nutritional value of edible oils.
- Fast filtration and low oil retention due to controlled particle size distribution.
- No colour reversion and no free-iron content.
- 3-MCPD and GE compliant as part of the refining safety approach.
Natural
Natural family products use the clay’s inherent properties to adsorb impurities and protect the nutritional value of the oil. They are intended for easy to bleach edible oils such as CPO, CPL, corn, canola, sunflower, coconut and olive.
Naturally mined fullers earth with no acid treatment. Highly effective in removing carotenoids, chlorophyll, peroxides and trace metals from light edible oils.
Technical specifications:
| Parameter | Value |
|---|---|
| Surface area | 180 to 240 m² per g |
| Average particle size | 20 to 30 μm |
| Activation | None |
| Key features | Fast filtration and low oil retention. No colour reversion. No free-iron. |
| Typical oils | Palm, sunflower, canola, coconut. |
Thermally activated and selectively acid treated clay sourced from smectite minerals including montmorillonite and attapulgite. Designed for high surface area and strong binding.
Technical specifications:
| Parameter | Value |
|---|---|
| Surface area | 250 to 320 m² per g |
| Average particle size | 25 to 35 µm |
| Activation | None |
| Key features | Fast filtration and low oil retention. No colour reversion. No free-iron. Removes chlorophyll, metal traces and crop residues. |
| Typical oils | Palm, sunflower, canola, coconut. |
Thermally activated and selectively acid treated clay with strong adsorption capacity.
Technical specifications:
| Parameter | Value |
|---|---|
| Surface area | 220 to 280 m² per g |
| Average particle size | 25 to 35 µm |
| Activation | Thermally activated with strong absorption capacity. |
| Key features | Fast filtration and low oil retention. No colour reversion. No free-iron. |
| Typical oils | Palm, sunflower, canola, coconut. |
Natural bleaching earth produced from smectite minerals with high temperature treatment and selective acid treatment, engineered for palm oil and other light oils.
Technical specifications:
| Parameter | Value |
|---|---|
| Surface area | About 300 m² per g |
| Average particle size | 25 to 35 µm |
| Activation | Selective acid treatment with thermal processing. |
| Key features | Fast filtration and low oil retention. No colour reversion. No free-iron. |
| Typical oils | Palm, sunflower, canola, coconut. |
Performa
Performa are activated bleaching earth made from high quality smectite minerals. Activation breaks chlorophyll chain length for easier adsorption, providing fast filtration and strong removal of carotenoids, chlorophyll, soap traces, peroxides, gums and crop traces. This range is recommended for difficult to bleach edible oils such as soybean, cottonseed and palm kernel.
Acid activated bleaching earth with more than 90 percent activation. High surface area and acidic pH enable effective adsorption.
Technical specifications:
| Parameter | Value |
|---|---|
| Surface area | 300 to 350 m² per g |
| Average particle size | 29 to 35 µm |
| Activation | Acid Activation |
| Key features | Fast filtration and low oil retention. No colour reversion. No free-iron. |
| Typical oils | Soybean, rice bran, cottonseed, corn, canola, palm kernel. |
Acid activated bleaching earth with more than 90 percent activation. High surface area and acidic pH enable effective adsorption.
Technical specifications:
| Parameter | Value |
|---|---|
| Average particle size | 25 to 35 µm |
| Activation | Acid Activation |
| Key features | Fast filtration and low oil retention. No colour reversion. No free-iron. Effective removal of carotenoids and chlorophyll. |
| Typical oils | Soybean, cottonseed, corn, canola, palm kernel. |
Ultima
Ultima are specialised bleaching earths designed to purify edible oils and bio-fuels with record-high filtration time, ensuring long filtration cycles and high running efficiency at the plant.
Mid Activated clay of Selectively Smecite group specifically Montmorillonite and Attapulgite. Designed for 3 MCPD and GE removal from the oil during its refining. It removes Chlorophyll effectively. It prevents the formation of chlorine during refining step.
Technical specifications:
| Parameter | Value |
|---|---|
| Surface area | 200 - 250 m2/gm |
| Average particle size | 24 - 35 |
| Activation | Mild Activated clay |
| Key features | It is highely recommanded for the 3 MCPD and GE Removal |
| Typical oils | Palm oil, Soybean oil, Rice bran oil, Rapeseed oil, Canola oil |
Acid Activated clay of Selectively Smecite group specifically Montmorillonite and Attapulgite. Designed for 3 MCPD and GE removal from the oil during its refining. It removes Chlorophyll effectively. It removes chlorine during the refining step to prevent the generation of 3 MPCD and GE
Technical specifications:
| Parameter | Value |
|---|---|
| Surface area | 250 - 300 m2/gm |
| Average particle size | 24 - 35 |
| Activation | Acid Activated clay |
| Key features | It is highely recommanded for the 3 MCPD and GE Removal |
| Typical oils | Palm oil, Soybean oil, Rice bran oil, Rapeseed oil, Canola oil |
Let’s Work Together
Don't hesitate to reach out to us for technical questions, sample requests, inquiries or regulatory information. Our team is ready to help and meet your requests.
