Description

SIZE OF MEGNESIA ALUMINA SPINEL:

refractory sand           segment sand        "FEPA" 0-1mm 1-3mm 3-5mm 5-8mm 8-10mm 10-15mm...
fine powder "FEPA" -180mesh -200mesh -325mesh...

 

Specification

PHYSICAL AND CHEMICAL INDEX OF MEGNESIA ALUMINA SPINEL:

Grade AM-70 AM-90
Chemical Composition Al2O3 71-76 88-92
MgO 22-27 8-12
CaO ≤0.65 ≤0.4
SiO2 ≤0.4 ≤0.25
Fe2O3 ≤0.4 ≤0.4
Na2O ≤0.4 ≤0.4
Physical Index  volume density ≥3.2 ≥3.3

APPLICATION OF MEGNESIA ALUMINA SPINEL:

1. To replace magnesia chrome sand to make high grade refractory bricks in lining bricks for cement rotary kiln to avoid chrome pollution and has higher resistance againt flaking.
2.Used to make refractory castables for ladles to improve anti-corrosion of steel plate lining. It is widely applied in refractory material, steel smelting, cement rotary kiln and glass kiln.
3.As an ideal material to make continuous casting sliding plate, ladle lining brick, nozzle bricks, continuous casting nozzle and open hearth bricks. Also as a basic material in big large cement kiln, bricks in transition zone of neutral cement kiln and kiln furniture for medium and high temperature applications.

 

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