Iron and/or steel treatment with magnesium and refractory coated

Details Iron and/or steel treatment with magnesium and refractory coated Iron and/or steel treatment with magnesium and refractory coated

1978-02-06

1980-02-12

Rosenberg, P. D.

Specialized metallurgical processes, compositions for use therei

Processes

Free metal or alloy reductant contains magnesium

75130A, 75130AB, 75130B, C22C 3308

Patent

active

041882105

ABSTRACT:
A method of treating molten iron is disclosed. Iron shot controlled in particle size (0.04-0.20 inches) is coated with substantially pure magnesium (0.018-0.022 inches thick) and a wash coating of refractory (0.004-0.010 inches thick) is applied as an outer shell. The shot core serves to inhibit floatation of the magnesium treating agent and acts as a chill element controlling dissolution of the magnesium to improve efficiency and recovery. The weight ratio between the core and coatings can be conveniently varied to meet critical requirements for varying the metallurgical treatment.

REFERENCES:
patent: 3833361 (1974-09-01), Kusaki

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