Crude And Exfolaited Silver Vermiculite?
Origin :Xinjiang,China
Expansion ratios:7-11times
Asbestos :None
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Vermiculite?is?a?member?of?the?phyllosilicate?group?of?minerals,?resembling?mica?in?appearance.??It?is?found??in?various?parts?of?the?world,?vermiculite?is?basically?a?hydrated?phlogopite?mica?which?has?the?remarkable?ability?to?expand?to?many?times?its?original?volume?when?heated?at?850?-1100°C.
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Crude?vermiculite?consists?of?golden?and?silver?vermiculite?which?are?carefully?classified?into?many?sizes?,includes?0.3-1mm1.5-2.5mm0.5-1.41mm1-2mm2-4mm3-6mm4-8mm.
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Exfoliated?Vermiculite
The?exfoliation?process?is?carried?out?commercially?by?passing?crude?vermiculite?through?a?furnace?chamber?in?a?controlled?manner.?The?crude?vermiculite?then?expands?at?right?angles?to?the?cleavage?planes,?producing?concertina-shaped?particles?many?times?their?original?volume.Exfoliated?vermiculite?size?,includes?0.3-1mm1-3mm1-2mm2-4mm2-3mm
3-5mm3-6mm4-8mm6-8mm,special?size?can?be?done?as?per?customer’s?demands?.
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Silver raw vermiculite photos
silver expanded vermiculite photo
?1.Silver vermiculite size
?Xinjiang silver vermiculite(crude/raw/unexpanded)
Size | Grade | Expansion ratios | Impurity | Asbestos |
0.3-1mm | Superfine | 7times min | 10%max | None |
0.71-2mm/1-2mm | Fine | 9-10times | 10%max | None |
2-4mm | Medium | 10-11times | 10%max | None |
3-6mm 4-8mm | Large | 11times min | 10%max | None |
?Xinjiang silver vermiculite(exfoliated/expanded )
Size | Geade | Expansion ratios | Impurity | Asbestos |
0.3-1mm | Superfine | 120-150kgs/m3 | 2%max | None |
1-3mm | Fine | 100-130kgs/m3 | 2%max | None |
2-4mm | Medium | 100-130kgs/m3 | 2%max | None |
3-6mm 4-8mm | Large | 100-130kgs/m3 | 2%max | None |
?2.Silver Vermiculite chemicals
Composition | SiO2 | MgO | Al2O3 | Fe2O3 | CaO | K2O | ph |
Percentage | 37-42 | 11-23 | 9-17 | 3.5-18 | 1-2 | 5-8 | 7-11 |
3.Applications:
Animal?Feedstuffs | Lightweight?Concretes?And?Screeds |
Bitumen?Coated?Vermiculite?Screeds | Insulation |
Chemically?Processed?Vermiculite | Packing?Materials |
Fire?Protection | Vermiculite?Board |
Friction?Lining | Refractory?Products |
Horticulture?Agriculture?Hydroponics | Silicate?Bonded?Shapes?and?Blocks |
Insulation?in?Steelworks?and?Foundaries | Vermiculite?Plasters |
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?Raw vermiculite:50kgs/bag,ton bag
Expanded vermiculite:100liter bag,1000liter bag ,1500liter bag .Or as client's demands.
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