Pure-Flo® Supreme B81 Bleaching Earth for Edible Oils
Pure-Flo® Supreme B81 Bleaching Earth for Edible Oils - Pallet - 40 x 50lb bags is backordered and will ship as soon as it is back in stock.
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Bulk pricing (2+ pallets): 2–3 @ $1,649 ea • 4+ @ $1,599 ea. Live freight quotes at checkout.
| Minimum Qty | Discount |
|---|---|
| 2 + | $1,649.00 |
| 4 + | $1,599.00 |
Overview
Pure-Flo® Supreme B81 by Oil-Dri is a surface-modified bleaching adsorbent developed for fats, edible oils, and specialty oil-processing applications. It is designed to provide a practical balance of adsorption activity and filtration performance, particularly where moderate color and chlorophyll removal are required.
Supreme B81 adsorbs metals and polar impurities while helping remove color bodies, chlorophyll, soaps, and phospholipids from compatible oils. Its filtration characteristics support long filtration cycles with reduced pressure buildup near the end of the cycle.
Minimum order: 2 pallets.
- 2–3 pallets: $1,649 per pallet
- 4+ pallets: $1,599 per pallet
Bagged pallet configuration: 40 × 50 lb (22.68 kg) bags — 2,000 lb (approximately 907 kg) net per pallet.
Bulk format: 2,000 lb (approximately 907 kg) supersack available by request. Contact Sorbents Direct for current pricing and availability.
Freight is calculated at checkout using live LTL rates for eligible configurations.
Primary applications
- Edible oil refining: Bleaching and polishing of vegetable oils where moderate color and chlorophyll removal are required
- Palm oil processing: Physical refining applications requiring a balance of bleaching activity and filtration performance
- Corn and cottonseed oil: Reduction of color bodies and selected impurities during oil purification
- Tallow and animal fats: Clarification and color removal from compatible processed fats
- Multi-oil processing: Use across facilities processing multiple oil types with one surface-modified bleaching product
- Specialty oil purification: Treatment of compatible oils requiring metals adsorption, contaminant removal, and reliable filtration
Why choose Supreme B81?
- Surface-modified adsorption: Proprietary processing enhances the natural adsorption and filtration characteristics of the mineral
- Color and chlorophyll reduction: Removes color bodies from a range of oils and effectively reduces chlorophyll in vegetable oils
- Metals adsorption: Adsorbs metals including phosphorus, calcium, iron, magnesium, and nickel
- Soap and phospholipid removal: Helps reduce polar impurities that can affect downstream processing and finished-oil quality
- Controlled free-fatty-acid response: Designed to minimize free fatty acid rise during bleaching
- Strong filtration performance: Supports long filtration cycles with reduced pressure buildup near the end of the cycle
- Processing flexibility: Suitable for facilities refining palm oil, corn oil, cottonseed oil, tallow, and other compatible oils
Typical properties
| Product family | Surface-modified bleaching adsorbent |
|---|---|
| Form | Fine powdered bleaching earth |
| Free moisture | 15.5% typical at 105°C |
| pH | 4.4 typical, measured at 5% solids in deionized water |
| Tamped density | 43 lb/ft³ typical (688 g/L) |
| Particle size | 77% typical passing 325 mesh; less than 45 microns |
| Manufacturer | Oil-Dri Corporation of America |
Values shown are published typical properties and are not absolute product specifications. Final lot-specific values, where available, should be confirmed through current manufacturer documentation or a Certificate of Analysis.
Performance characteristics
| Process objective | Published performance characteristic |
|---|---|
| Color reduction | Removes color bodies from a variety of oils |
| Chlorophyll removal | Effectively reduces chlorophyll in vegetable oils |
| Metals adsorption | Adsorbs phosphorus, calcium, iron, magnesium, nickel, and other metals |
| Polar impurity removal | Removes soaps and phospholipids from compatible oils |
| Free fatty acid control | Designed to minimize free fatty acid rise during bleaching |
| Filtration | Supports long filtration cycles with reduced pressure buildup at cycle end |
Regulatory status
Oil-Dri states that Pure-Flo® products are classified as processing aids and have Generally Recognized as Safe status from the U.S. Food and Drug Administration. Customers remain responsible for confirming that the product, treatment conditions, and finished process comply with all applicable regulations and end-use requirements.
Packaging & availability
| Package | Configuration |
|---|---|
| 2,000 lb (approximately 907 kg) | One pallet containing 40 × 50 lb (22.68 kg) bags |
| 2,000 lb (approximately 907 kg) | One bulk supersack |
- Minimum order: Two pallets for the published bagged-pallet pricing
- Bagged material: Palletized and unitized for LTL shipment
- Supersacks: Available by request; contact Sorbents Direct for current pricing and availability
- Freight: Live LTL rates may be calculated at checkout for eligible configurations
- Volume requirements: Contact us for recurring orders, multi-pallet pricing, or delivered bulk quotations
Use and process guidance
Bleaching-earth dosage and operating conditions depend on the incoming oil, contaminant profile, desired finished-oil specifications, filtration equipment, temperature, vacuum, residence time, and downstream process requirements.
Oil-Dri’s published laboratory example for degummed sunflower oil used the following conditions:
| Laboratory condition | Published example |
|---|---|
| Oil quantity | 200 grams |
| Vacuum | 27–29 inches Hg |
| Bleaching temperature | 220°F (104°C) |
| Residence time | 30 minutes |
| Dosage rate | 0.5% |
These conditions are a manufacturer-published laboratory example, not a universal processing recommendation. Customers should conduct bench or plant trials using their own oil and equipment before establishing a production dosage.
Quality assurance
Published properties provide a general reference for Supreme B81 performance. Because Sorbents Direct has not yet received a production lot of this material, a representative lot-specific COA is not currently displayed on this page.
Where available, documentation for shipped material may include:
- Manufacturer Technical Data Sheet
- Safety Data Sheet
- Lot-specific Certificate of Analysis
- Packaging and traceability information
Handling & storage
- Store the product in a dry, protected location
- Keep bags or supersacks closed until use
- Minimize airborne dust during transfer and handling
- Use suitable ventilation and personal protective equipment as directed by the current SDS
- Review local requirements for handling and disposal of fresh and spent bleaching earth
- Spent bleaching earth may retain oil and should be managed according to the process, SDS guidance, and applicable regulations
Always review the current Safety Data Sheet before handling or use.
Documentation & support
Available product documentation may include:
- Safety Data Sheet (SDS)
- Technical Data Sheet (TDS)
- Certificate of Analysis (COA), where available for the supplied lot
- Packaging and freight information
- Technical product-selection assistance
Visit our Documentation Center or contact Sorbents Direct to discuss your oil, process conditions, filtration system, packaging preference, and order volume.
Need help selecting a bleaching clay?
Selecting a bleaching adsorbent depends on the oil type, incoming color, chlorophyll level, soaps, phospholipids, trace metals, dosage target, filtration rate, pressure buildup, and finished-oil specifications. Sorbents Direct can help review the available Oil-Dri grades and identify appropriate materials for bench or production testing.
Questions & answers
Q: What is Pure-Flo® Supreme B81?
A: Supreme B81 is a surface-modified bleaching adsorbent manufactured by Oil-Dri for fats, edible oils, and specialty oil-purification processes.
Q: What contaminants can Supreme B81 remove?
A: Oil-Dri identifies color bodies, chlorophyll, soaps, phospholipids, and metals including phosphorus, calcium, iron, magnesium, and nickel among the materials Supreme B81 can adsorb or reduce.
Q: Which oils can be treated with Supreme B81?
A: Published applications include palm oil, corn oil, cottonseed oil, tallow, vegetable oils, and other compatible fats and oils requiring color reduction and purification.
Q: Is Supreme B81 acid activated?
A: Supreme B81 is described by Oil-Dri as a surface-modified bleaching adsorbent produced using proprietary Surface Modification Technology. Its published typical pH is 4.4.
Q: What is the typical particle size?
A: The published typical value is 77% passing a 325-mesh screen, corresponding to particles smaller than approximately 45 microns.
Q: Does Supreme B81 support fast filtration?
A: Oil-Dri describes Supreme B81 as an active, fast-filtering product with long filtration cycles and reduced pressure buildup near the end of the cycle.
Q: What dosage should I use?
A: Dosage should be established through process testing. Oil-Dri’s TDS includes a 0.5% laboratory example for degummed sunflower oil, but the correct dosage depends on the oil, contaminants, equipment, and finished-product requirements.
Q: What package options are available?
A: Sorbents Direct offers Supreme B81 in 2,000 lb bagged pallets containing forty 50 lb bags or in 2,000 lb supersacks.
Q: What is the minimum order?
A: The current minimum order for published bagged-pallet pricing is two pallets, or 4,000 lb total.
Q: Is Supreme B81 suitable for edible-oil processing?
A: Yes. Oil-Dri positions Supreme B81 for fats and oils processing and states that Pure-Flo® products are classified as processing aids with FDA GRAS status. Customers should confirm suitability for their exact process and regulatory requirements.
Q: Is a COA available?
A: Lot-specific Certificates of Analysis may be available for supplied production lots. Contact Sorbents Direct when requesting a quote or placing an order.
Related products & resources
Pure-Flo® Supreme B81 Bleaching Earth for Edible Oils
