Process for the removal of rust from cast iron borings and the l

Details Process for the removal of rust from cast iron borings and the l Process for the removal of rust from cast iron borings and the l

1980-05-12

1982-11-23

Andrews, M. J.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 13, 75 44S, 209 20, 209144, C21C 542

Patent

active

043603793

ABSTRACT:
Process and means for the removal of iron rust from cast iron borings or chips to prepare the same for melting. The process involves the heating and agitation of such borings or chips, converting the rust of the same to magnetite and chemically uncombined water, eliminating the water from the chips or borings, screening the particles to remove the converted material, charging the balance of the substantially oxide free borings into a melting furnace, wherein the rate of the charge and the melting temperatures can be maintained substantially constant during the melting process to provide a uniform slag-free operation.

REFERENCES:
patent: 2294920 (1942-09-01), Lykken
patent: 4162156 (1979-07-01), Naffziger
patent: 4209321 (1980-06-01), Harvey et al.

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