Size-graded quaternary batch for bonded basic refractory shapes

Details Size-graded quaternary batch for bonded basic refractory shapes Size-graded quaternary batch for bonded basic refractory shapes

1974-06-17

1976-04-06

Poer, J.

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

106 63, C04B 3504

Patent

active

039486710

ABSTRACT:
A refractory of fused or dead-burned dolomitic grain bonded with fine magnesite. The dolomitic grain is divided into three coarse and intermediate particle size fractions in the batch, while the magnesite is alone in the fine fraction. The four particle fractions are separated by three discrete gaps in the size distribution of particles resulting in a burned refractory of high hot strength and corrosion resistance to furnace slags in basic oxygen furnaces. The width of each gap is at least equivalent to the gap created by removing, from a ground raw material batch with continuous particle size distribution, the raw material retained on one primary Tyler sieve after screening (sizing) the batch.

REFERENCES:
patent: 2572688 (1951-10-01), Austin
patent: 3141784 (1964-07-01), King et al.
patent: 3262795 (1966-07-01), Davies et al.

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