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Siliver Vermiculite

Siliver Vermiculite

Place of Origin : CHINA
Brand Name : Surely
Certification : CIQ ,SGS
Model Number : Surely-V
MOQ : 20 MT
Price : USD100-200
Packaging Details : 50kg/plastic bags,or as your required
Delivery Time : Within 20 Days after received your prepayment
Payment Terms : 30% T/T In advance , 70% Balance pay against copy of BL
Supply Ability : 1000 MT per Month
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The instruction of vermiculite

1,Vermiculite is a mineraloid of hydrated laminar magnesium-aluminum- iron silicate. Its chemical composition greatly varies and chemical formation could be simplified as(Mg,Fe,Al)3(Al,Si)4O10(OH)2·4H2O. When heated to a temperature of about 850-950℃, it instantly expands(exfoliates) up to 15-25 times as water flashing into steam, maximum 30 times its original bulk volume. There is a color change during expansion from golden brown into silver white depending upon the composition of the vermiculite and temperature. With such prominent characteristics as being fireproof, heat insulating,sound and moisture absorbing,non-toxic, lightweight and disease free, it is widely used in construction, chemical industry, petroleum, electronics, light industry, environmental protection and as a medium of agricultural chemical products etc.


Our vermiculite essential has the following characteristics:

-PH 7 max.

-Asbestos-free

-Thermal conductivity: 0.045-0.06 Calorie/M

-Unit weight: Approx.0.9kg/M3

-Tensile strength: 1,000-1,500kgs/CM2

-Hardness: 1-1.8


2,CHEMICAL COMPOSITION OF VERMICULITE


ELEMEMT

SiO2

Al2O3

Fe2O3

CaO

MgO

TiO2

CONTENT%

37.56

11.85

5.15

1.51

22.44

1.05

ELEMEMT

K2O

P2O5

S

MnO

H2O

LOI

CONTENT%

6.39

0.085

0.046

0.030

7.18

6.71


3,VERMICULITE CONCENTRATE


SIZE

DENSITY

SPECIFICATION

MOISTURE

IMPURITY

EXPANSION

VOLUME

0.3-1

0.5-0.9

85MIN

5MAX

8MAX

6.5MIN

1-2

0.5-0.9

85MIN

5MAX

8MAX

8MIN

2-4

0.5-0.9

85MIN

5MAX

8MAX

7MIN

4-8

0.5-0.9

85MIN

5MAX

8MAX

7MIN


4,MAIN PROPERTY OF EXPANDED VERMICULITE


Density (kg/M3)

60-200

Thermal conductivity (W/(M.K))

0.047-0.081

Degree of fire-proof (℃)

1300-1350

Rate of Water-absorbing (%)

26.5-40.6

Rate of moisture-absorbing(%)

≤2

Anti-freezing

For 15 cycles of freezing and thawing, Particle with no any change at-20℃


Sound absorbing

0.53-0.63

Temperature in use (℃)

900-1000

Corrosion resisting

Alkali-resisting


5,The main application of vermiculite


(1). Vermiculite in industry


GASKETS OR SEALS

FIREPROOFING

INSULATIO IN STEELWORKS AND FOUNDRIES

PACKING MATERIALS

ANIMAL FEEDSTUFFS

FRICTION LININGS

REFRACTORY PRODUCTS



(2). Vermiculite in agriculture

SOIL IMPROVEMENT

FERTILIZER VARRIER

HOTICULTURE

HYDROPONICS


(3). Vermiculite in construction industry


BITUMEN COATED VERMICULITE PLATES

CONSTRUCTION COATINGS

LIGHTWEIGHT CONCRETES

LOOSE FILL INSULATION

VERMICULITE PLASTERS

FIREPROOF BOARD



Any of questions ,please kindly informed me !

Look forward your inquired and visiting !



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