Method for melting and reducing chrome ore

Details Method for melting and reducing chrome ore Method for melting and reducing chrome ore

1986-11-10

1988-11-08

Rosenberg, Peter D.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 49, 75 5919, 75 5921, C21C 534

Patent

active

047832193

ABSTRACT:
A method for melting and reducing chrome ore, which comprises charging chrome ore and carbonaceous material, and blowing in oxygen gas under a pressure ranging from 1 to 600 Torr, while molten metal is being stirred by a stirring gas blown in. In this method, a reaction vessel capable of allowing top blowing and bottom blowing onto the molten metal and decreasing pressure within the vessel is employed. Chrome ore and carbonaceous material can be used in the form of lumps or powder. When powdered ore and material are used, they can be injected through a lance or a tuyere into the vessel.

REFERENCES:
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patent: 3773496 (1973-11-01), Kruppel
patent: 3844768 (1974-10-01), Leroy
patent: 3854932 (1974-12-01), Bishop
patent: 4178173 (1979-12-01), Gorges
patent: 4497656 (1985-02-01), Robert
patent: 4497656 (1985-02-01), Robert

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