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Sintered MA spinel is made with industrial alumina and dead-burned magnesia as starting materials, through multi-stage homogenization process, and sintered at high temperature in shaft kiln.
This synthesized material is featured by high bulk density, high level of spine phase, well developed spinel crystal, consistent properties, enabling its good resistances to slag attack, spalling and thermal shock.
Sintered MA spinel is made with industrial alumina and dead-burned magnesia as starting materials, through multi-stage homogenization process, and sintered at high temperature in shaft kiln.
This synthesized material is featured by high bulk density, high level of spine phase, well developed spinel crystal, consistent properties, enabling its good resistances to slag attack, spalling and thermal shock.
Sintered MA spinel can be used as an important raw material in shaped and unshaped refractories, for example, magnesia-spinel bricks for cement rotary kiln, steel ladle bricks and castables, etc. It is widely used in refractories for steelmaking, cement rotary kilns, glass furnaces, etc.
|
Chemical composition |
Unit |
JMA-78 |
JMA-66 |
|
Al2O3 |
% |
≥ 75 |
≥ 64 |
|
MgO |
% |
≥ 20 |
≥ 32 |
|
CaO |
% |
≤ 0.40 |
≤ 0.50 |
|
Na2O |
% |
≤ 0.35 |
≤ 0.30 |
|
SiO2 |
% |
≤ 0.30 |
≤ 0.35 |
|
Fe2O3 |
% |
≤ 0.25 |
≤ 0.30 |
|
Physical properties |
|||
|
Bulk density |
g/cm3 |
≥ 3.20 |
≥ 3.20 |
|
Apparent porosity |
% |
≤ 3.00 |
≤ 3.00 |
Sizes: 3-1/2-1/1-0/1-0.5/1-0.15/0.5-0mm
Fines: -200mesh, -325mesh
Packing: 25kg bag / 1000kg big bag / as per customer’s request
