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Specifications
SpecificationsOur vermiculite essential has the follow characteristics:
-PH 7max. aaAsbestos-free
aaThermal conductivity:A
1.Size:0.3-1, 1-2mm -, 2-4mm,,4-8 mm
3.Use: industry,agriculture,construction,chemical industry,petroleum,electronics,light industry,environmental protection and as a medium of agriculitural chemical products ect.
GENERAL INTRODUCTION
When 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 heated to a temperature of about 850-950°C, vermiculite 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.
VERMICULITE CONCENTRATE
SIZE (MM) | DENSITY (G/ML) | SPECIFICATION (%) | MOISTURE (%)
| IMPURITY (%)
| EXPANSION VOLUME (ML/G)
|
1-2 | 0.5-0.9 | 85MIN | 5MAX | 8MAX | 8MIN |
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 |
VERMICULITE APPLICATION
VERMICULITE IN INDUSTRY
1.GASKETS OR SEALS
2.FIREPROOFING
3.INSULATION IN STEELWORKS AND FOUNDRIES
4.PACKING MATERIALS
5.ANIMAL FEEDSTUFFS
6.FRICTION LININGS
7.REFRACTORY PRODUCTS
8.Processed Vermiculite
VERMICULITE IN AGRICULTURE
1.SOIL IMPROVEMENT
2.FERTILIZER CARRIER
3.HORTICULTURE
4.HYDROPONICS
VERMICULITE IN CONSTRUCTION INDUSTRY
1.BITUMEN COATED VERMICULITE PLATES
2.CONSTRUCTION COATINGS
3.LIGHTWEIGHT CONCRETES
4.LOOSE FILLINSULATION
5.VERMICULITE PLASTERS
6.FIREPROOF BOARD
company
Shijiazhuang Mining Imp&Exp Trade Co.,Ltd. owns self import and export right. Our company has strong economic base.Now we have one sepiolite mine and one vermiculite mine.The mining capacity is 60,000 tons per year. Besides,our company has own sepiolite factory and vermiculite factory. The production capacity is 30,000 tons per year.Our products are mainly exported(above 80%) and also sold domestically. Our market covers various countries and regions like USA,Germany,France,Italy,Mexico,Singapore,Malaysia,Japan, South Korea, Taiwan etc. The market share is growing rapidly and firmly.
