Sell Siver-white vermiculite

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Sell Siver-white vermiculite
Posting date : Aug 09, 2007
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27-
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Vermiculite 1, Brief introduction: The mineral name of the vermiculite is from Latin, the meaning with " worm's form ", " worm's mark shape ". it is the kinds of mineral hydrous magnesium aluminium silicate mineral iron, which Chinese calls vermiculite the crooked mineral as leech. it is formed, grown and weathered function or hot liquid alteration by black (gold) glimmer, chemical composition (Mg、Fe、AL) 3[(Si、AL) 4O10(OH)2]•4H2O but often change. The shape is brilliant monocline, usually take the form of film, which color is Brown, yellowish-brown or bronze-colored. Oil gloss. Hardness 1~1.5. Density 2.4~2.7g/cm3, the shape of the vermiculite has two kinds of thickness, the thick one is transformed by black (gold) glimmer,etc. keep the characteristic of glimmer slice or scale's flaky; the thin one takes the form of soil. It is so difficult to distinguish mixed with other clay mineral, when roasted for 0.5~1.0 minutes at 800~1000 ℃, the volume swells rapidly, increase 8~15 times, the high one can be up to 30 times. average unit weight is 100~130Kg/m3 of expand vermiculite. Because of roast, the function of expand vermiculite have tiny air separate layer, so have fine warm-keeping performance. 2, Chemical ingredient and Specification A, Ingredient of Golden vermiculite Component SiO2 Al2O3 MgO CaO Ph Fe2O3 Other Content 41% 18% 21% 0.8% 8-1% 3.5% < 8% Specification produced: Specification 2# 3# 4# 5# Granule 7-12mm 3.5-7mm 1-3.5mm 0.3-1mm B, Ingredient of Silver-white vermiculite Ingredient SiO2 AL2O3 MgO CaO FeO Fe2O3 TiO2 Content 43.2 12.68 24.23 0.96 1.54 4.06 1.33 Ingredient K2O P2O5 H2O Na2O MnO TiO loss Content 5.95 0.08 3 1.6 0.043 5.097 6.50 Specification produced: Spec. 2# 3# 4# 5# 6# Granule 4-8mm 2-4mm 1-2mm 0.3-1mm 0.25-0.71mm、0.3-0.6mm Besides the above common spec. we also can produce other spec. according to customer’s requirement. 3, Use and Function: Vermiculite extensively use in the industries of the building, electricity, petroleum, chemical industry, metallurgy, textile, communications and transportation, horticulture, car, aircraft manufacturing, agriculture and food,etc. because of it has the character of light weight, freezing, keeping warm, insulating against heat, sound insulation, ect. when roasted. As improving the soil on agriculture, the adjuvants of chemical fertilizers carriers, also is material carrier such as animal's feed, deodorant, domestic animal medicine, pesticide,etc., can also make insecticide, bactericide, disinfectant, organic compound (purlin brain), and in order to store vegetables and other scarce plants roots, as good intermediaries of the stem, leaf. The vermiculite felt has performance of absorbing to the radioactive element, still can deal with the waste water of some radioactive elements.

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