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producers of industrial minerals commodities in south ... - InfoMine

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M<strong>in</strong>imum %<br />

By weight reta<strong>in</strong>ed <strong>in</strong> screen range<br />

Max.%<br />

by weight<br />

pass<strong>in</strong>g*<br />

92<br />

CONSTITUENTS AVERAGE % TECHNICAL DATA<br />

SiO2 38,00 S<strong>in</strong>ter<strong>in</strong>g Temp. ± 1 260°C<br />

Al2O3 8,34 Melt<strong>in</strong>g Temp. ± 1 315°C<br />

MgO 23,46 Specific Heat 0.2<br />

Fe2O3 7,57 S.G. 2.6<br />

K2O 4,60 PH 9,43<br />

CaO 3,43 LOI 10,70<br />

CO2 1,39 Moisture 4,5%<br />

TiO2 0,09 C.E.C (<strong>in</strong> meq / 100g) 90-100<br />

P2O5<br />

0,09<br />

Vermiculite is <strong>in</strong>combustible, <strong>in</strong>soluble,<br />

Cr2O3<br />

0,03<br />

non-abrasive, rot-pro<strong>of</strong>, odourless,<br />

F 0,53<br />

mouldable, non-irritant.<br />

Cl 0,01 Packag<strong>in</strong>g: 1 ton bags, conta<strong>in</strong>ers, bulk<br />

Subtotal 90,33<br />

Other 9,67<br />

Total 100,00<br />

SIZE ANALYSIS OF VERMICULITE PRODUCED BY V.B. - PALABORA MINING CO. LTD<br />

Particle<br />

Size Range<br />

-8,00mm<br />

+2,80mm<br />

-4,00mm<br />

+1,40mm<br />

-2,00mm<br />

+710µm<br />

-1,00mm<br />

+355µm<br />

-710µm<br />

+250µm<br />

-500µm<br />

+250µm<br />

-500µm<br />

+180µm<br />

CHEMICAL ANALYSIS OF VERMICULITE CONCENTRATE (Palabora)<br />

GRADE (Number & Product name)<br />

4 3 2 1 0 5 6<br />

LARGE MEDIUM FINE SUPERFINE MICRON MICRA RSU<br />

80<br />

80<br />

355µm 2 2 2 10<br />

80<br />

180µm 2 10 10 >20<br />

Note: * Screen undersize<br />

^ Non exfoliat<strong>in</strong>g content and Yield have been omitted<br />

80<br />

80<br />

70<br />

70

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