Using high pure light burned magnesia and alumina production in large smelting furnace of spinel, has the characteristics of large volume density, good luster, strong corrosion resistance, good thermal stability, widely used in steelmaking EAF roof, converter and electric furnace ladle, non-ferrous smelting furnace, cement industry transition zone of rotary kiln and glass melting kiln regenerator etc.. According to the needs of the user can be divided into three kinds of alumina content of 70%, 85%, 90% different spinel clinker and spinel solid solution, according to user needs processing a variety of specifications for products.

Physicochemical properties

Grade

Physical and chemical indicators

AM-70

AM-80

AM-90

Al2O3

71-77%

81-86%

88-92%

MgO

22-27%

13-17%

7-11%

SiO2

0.30%

0.30%

0.25%

CaO

0.6%

0.5%

0.4%

Na2O

0.3%

0.4%

0.4%

Fe2O3

0.3%

0.3%

0.3%

Bulk density

More than 3.35 g/cm3

More than 3.40 g/cm3

More than 3.45 g/cm3

True density

More than 3.50 g/cm3

More than 3.53 g/cm3

More than 3.56 g/cm3

Apparent porosity

3.5%

4%

5%

The mineral phase composition

Spinel

Corundum spinel, trace

Spinel, corundum

Grain size

8-5MM 5-3MM 3-1MM 1-0MM

A fine powder

180F 200F 240F 325F (Fe2O3 ≤ 0.4%)

Packing.

The 1 outer woven bag, the inner layer plastic lining, bags of 1000 kg net each, upper and lower opening;

2.25 kg kraft paper bag, 40 bag into a tray, the outer winding film.

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