Flux Calcined Diatomaceous Earth Type 501 CAS 68855-54-9 Coarse Grade for Pre-coat Filtration
Flux Calcined Diatomaceous Earth Type 501 CAS 68855‑54‑9 is coarse‑particle flux‑calcined diatomite designed for pre‑coat base layer. Its rigid large‑pore structure builds stable, permeable pre‑coating foundation on filter cloth or filter leaf. It prevents fine filter aid penetration, extends filter running time and reduces equipment clogging. Chemically inert and low soluble content, it is widely used as base pre‑coat material across food, chemical and industrial filtration processes.
Product Overview
Flux Calcined Diatomaceous Earth Type 501 CAS 68855‑54‑9 Coarse Grade for Pre‑coat Filtration is dedicated coarse pre‑coat base material. Fine diatomite directly coated on filter cloth is easy to penetrate fabric and cause pressure rise and short service cycle. Type 501 coarse grade forms firm rigid supporting layer as first pre‑coat base, providing good skeleton for subsequent fine filter aid covering, greatly improving overall filtration efficiency.
Key Features
- CAS Number: 68855‑54‑9, Flux Calcined Diatomaceous Earth Type 501 Coarse Grade
- Controlled coarse particle size, ideal for building pre‑coat supporting layer
- Rigid porous skeleton, forms stable, crack‑resistant pre‑coat filter bed
- Avoid fine filter aid penetrating filter cloth, extend filtration working cycle
- High permeability, lower initial filtration resistance
- Chemically inert, low soluble extractables, wide chemical compatibility
- Uniform particle‑size distribution, stable pre‑coating performance batch‑to‑batch
- Compatible with leaf filter, pressure filter and plate‑frame filter systems
Main Applications
‑ Base pre‑coat layer for industrial pre‑coat filtration procedure‑ Supporting foundation before applying fine‑grade filter aid‑ Pre‑coating for food, beverage and chemical liquid filtration equipment‑ Primary pre‑coating for large‑capacity industrial filter units
Usage Guidance
Use Type 501 for first‑layer pre‑coating to form complete supporting bed. Adjust pre‑coat dosage according to filter area requirement. After base layer forms, apply fine filter aid for working layer. Do not use alone for fine colloidal impurity removal. Control pre‑coating flow velocity properly. Conduct pilot test before formal production. Wear dust mask during powder handling.
Storage & Package
Seal packages tightly. Store in dry, clean warehouse, keep away from moisture and odorous substances. Standard package: 25kg woven bag with PE inner liner. Shelf life: 24 months under dry sealed storage.
Service Support
Filtration test samples available. COA and technical datasheet can be provided upon request. Stable bulk supply capacity. Welcome to inquire factory quotation.
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