Calcined Diatomite CAS 91053-39-3 for Lightweight Insulation Brick and Refractory
Calcined diatomite CAS 91053‑39‑3 is high‑temperature processed porous mineral material. With outstanding thermal stability, low bulk density and low thermal conductivity, it is widely adopted as core raw material for lightweight insulation brick and refractory components. The well‑retained pore structure effectively blocks heat transfer, making it ideal for thermal insulation layers in industrial high‑temperature equipment.
Overview
Our calcined diatomite CAS 91053‑39‑3 is produced via high‑temperature calcination of natural diatomite ore. The product maintains abundant interconnected pores after thermal treatment, featuring low thermal conductivity, high refractoriness and stable volume under high‑temperature conditions. It is specially developed for lightweight insulation brick, castable refractory and other thermal‑insulating refractory manufacturing. It can significantly reduce product bulk density while guaranteeing high‑temperature service stability.
Key Features
- Low thermal conductivity, superior heat insulation effect, reduce heat loss of high‑temperature furnaces.
- Good high‑temperature volume stability, less shrinkage under working temperature.
- Light bulk density, help produce lightweight refractory finished parts.
- Rich porous structure, excellent thermal shock resistance.
- Inorganic mineral composition, non‑combustible, chemically inert in most high‑temperature environments.
- Controllable particle size and gradation, convenient for batching and moulding in brick production.
Main Applications
- Lightweight diatomite insulation brick for industrial kilns and furnaces
- Insulating castable refractory, refractory mortar and refractory coating
- Back‑up thermal insulation layer for high‑temperature industrial equipment
- Heat‑preserving refractory precast blocks
- Other low‑density high‑temperature insulating refractory materials
Usage Recommendation
- Dosage should be adjusted according to target bulk density, refractoriness and compression strength of finished refractory products.
- Match with refractory clay, binder and other aggregate components for proportioning.
- Strictly control moisture content before forming to avoid cracking during sintering process.
- Suitable for batching, mixing, pressing and high‑temperature sintering craft of insulation brick.
Storage & Package
- Store in dry and ventilated warehouse, keep sealed to avoid moisture contamination.
- Standard package: 25kg woven bag with inner PE liner.
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