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| Categories | Metallurgy Processing Line |
|---|---|
| Brand Name: | hengyang |
| Model Number: | kiln |
| Certification: | ISO9001 |
| Place of Origin: | China |
| MOQ: | 1 |
| Price: | 35000-95700USD/set |
| Payment Terms: | T/T |
| Supply Ability: | 30sets/month |
| Delivery Time: | 25-40 days |
| Packaging Details: | Negociated |
| OEM: | Accept |
| Voltage: | Up to Buyer |
| Capacity: | 0.5-50t/h |
| Function: | expanded Vermiculite |
| Company Info. |
| Zhengzhou Hengyang Industrial Co., Ltd |
| Verified Supplier |
| View Contact Details |
| Product List |
Vermiculite is a natural mineral from the group of micas. Formed mainly by silicates of iron and magnesium, its manufacture goes through the extraction of raw material in mines. The extraction is done in open-pit mines.
The extracted vermiculite is processed by separating rocks and other impurities. In this way only the mineral remains, which is classified according to sizes.
Subsequently a heat treatment, known as exfoliation, is performed to expand the mineral. Vermiculite has a great capacity to exfoliate when heated.
When heated, vermiculite expands (exfoliates) to up to 12 times its original volume. The exfoliation process converts the dense flakes of ore into lightweight porous granules containing innumerable air layers.
The exfoliated vermiculite is light and clean, has a high thermal and acoustic insulation value, is incombustible and insoluble in water and has the ability to absorb liquids. That makes it as a natural insulation for the industry and the agriculture.

Processed Vermiculite
Vermiculite may be milled before or after exfoilation according to
the range of particle sizes required. Such milled or ground
material may be used for the production of anti-drumming coatings,
condensation control paints, high performance gaskets and seals and
for upgrading the fire resistance of organic foams and other
polymer based systems. Exfoliated vermiculite can be coloured to
suit its end use (eg. retail display).
Refractory Products
Vermiculite for refractory and high temperature insulation is
normally bonded with alumina cements, fire clays and silicates to
produce a wide range of vermiculite products which, depending on
type and application can withstand hot face temperatures of up to
1100°C.
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