1.Vermiculite----there are ore and expanded in flake and powder.

It is one of the safest, most unique minerals. A hydrated Magnesium Aluminum

Silicate,

it is lightweight, inorganic (incombustible), compressible, highly absorbent,

non-reactive, may have a high cation exchange capacity (surface chemistry

may be modified), and is available locally and globally.

Vermiculite, with layer construction and inter laminar water .It begins expand

when it is heated over 200°C, become the worm-like shape and it can be

reached the maximum volume(15-25times bigger) when it is heated rapidly

to 800°C. This forms the material with low density (100-130 kg/m3), excellent

insulation properties and good absorption and exchange capacity.

A.chemical composition

SiO2 Al2O3 MgO Fe2O3 CaO PH H2O

37-42% 9-17% 11-23% 5-18% 0.5-0.8% 8-11 <1%

B.Main technical items

Density g/cm3 Temperature Heat exchange rate /W.(M.K)-1

30.1 1000°C 0.17-0.21

Appearance Golden-yellow, Silver-white

C.Application of expanded Vermiculite powder

1),10-150Mesh is used in heat preservation material for

buildings, household congealer, sound-proofing plaster,

inner material for safe and cellar.

2),20-40M is used in cars, planes, ice box, fire extinguisher, filter etc.

3),40-120M is used in linoleum, ceiling etc.

4),120-270M is used in wall paper printing,paint, outdoor advertisement etc.

5),325M is used in golden brown and bronze-colored printing ink,filling

material for anti fire dope.

Raw vermiculite Application:

TG3（3.5-7mm), TG4（1-3.5mm) are mainly used in construction,

ship-building, smelting, oil-refining, chemical industry and soil

improving.

TG5（≤1mm） is used in anti-fire board and dope.

2. K2O Na2O Fe2O3 SiO2 Al2O3 CaO MgO TiO2 Loss on ignition

Sodium feldspar: 1% 9.5+-0.5% 0.2% 68+-1%19+-1% 0.05% 0.05% 0.05% 0.47%

Pottasium feldspar:11+-0.5% 1% 0.15% 68+-1%19+-1% 0.36% 0.14% 0.05% 0.96%

Packing:In 50kg plastic woven bag inner plastic bag.

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