vermiculite

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Vermiculite I plant specialized in the production of fire insulation materials dedicated vermiculite, the main models are :1-3mm scholar-4mm. 10-20 head ,20-40 head ,40-60 ,80 Head-120 etc.. Vermiculite series : Vermiculite golden yellow, silver and white vermiculite, such as vermiculite slate Vermiculite note Vermiculite is a layered structure of the magnesium aluminum silicate secondary water metamorphic minerals, ore outside like mica, usually black (DRC) by hydrothermal biotite alteration or winds, because the heat was dehydrating inflates deflection form shape resembles leeches, it said vermiculite. Vermiculite the chemical formula for （Mg，Ca）0.7（Mg，Fe，Al）6.0[（Al，Si）8.0]（OH4.8H2O） Vermiculite is divided into stages by the vermiculite ore and expanded vermiculite, according to the color separation can be divided into golden vermiculite, silvery white vermiculite. Milky white vermiculite. I plant the vermiculite ore after baking volume can be quickly expanded 8 -20 times. After expanding the proportion of 130 -180kg/m3. Fire in the insulation with good thermal insulation properties. Silver white vermiculite Golden vermiculite Vermiculite the chemical composition Constituents SiO2 Al2O3 MgO Fe2O3 CaO PH H2O Content%） 37-42 9-17 11-23 5-18 0.5-0.8 8-11 <1 The main specifications and technical indicators Vermiculite ore ： Specs On the 2nd unit On the 3nd unit On the 4nd unit On the 52nd unit Size（mm） 5-7 3-5 1-3 <1 Vermiculite expansion： Level Loose weight (kg/m3) Superabsorbent（%） Impurity（kg/m3） 1 130 480 <1 2 160 450 <1 3 180 420 <1

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The North Mineral Factory

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