Production of compounds by reaction of solid materials at high t

Details Production of compounds by reaction of solid materials at high t Production of compounds by reaction of solid materials at high t

1986-03-05

1988-08-23

Paschall, M. H.

Electric heating

Metal heating

By arc

219 7616, 21912147, 75 05B, 75 1019, 427 34, B23K 900, B22F 900

Patent

active

047662840

ABSTRACT:
Reactions between solid materials to form useful products, for example, strontium ferrites, are effected by heating a primary solid feed material with a plasma gas stream to melt the primary feed material and then contacting a secondary solid feed material with the molten primary feed material and the plasma gas stream to melt the secondary feed material and enable reaction among the reactants to occur. The method of the invention simplifies the effecting of solid-solid reactions using plasma gas streams and permits the use of impure materials as the secondary feed material, strontium carbonate or strontium oxide and ferric oxide (hematite), so as to form a strontium ferrite.

REFERENCES:
patent: 3179784 (1965-04-01), Johnson
patent: 3710070 (1973-01-01), Hirt et al.
patent: 4162914 (1979-07-01), Cremer
patent: 4370538 (1983-01-01), Browning

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