Method of carrying out heat-requiring chemical and/or physical p

Details Method of carrying out heat-requiring chemical and/or physical p Method of carrying out heat-requiring chemical and/or physical p

1974-04-22

1976-04-06

Rosenberg, Peter D.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 26, C21C 552, C22B 110

Patent

active

039486400

ABSTRACT:
A bed of coke or other material having a resistivity within the range of between 10.sup..sup.-4 and 10 ohm m is heated in a reaction chamber by means of an induction coil surrounding said chamber. The heat is generated in the bed itself by passing through said coil an alternating current having a frequency of at most ten times the mains frequency. There is maintained between the least cross dimension (d) of the bed area and the penetration depth (.delta.) of the inductive field a ratio determined by the relationship ##EQU1## WHERE K IS A NUMERICAL VALUE BETWEEN 1.1 AND 1.5.

REFERENCES:
patent: 3440731 (1969-04-01), Tuthill
patent: 3661554 (1972-05-01), Wijard

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