- Patent Title: Methods and systems for producing ferro-chrome in a duplex furnace
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Application No.: US14291701Application Date: 2014-05-30
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Publication No.: US09695492B2Publication Date: 2017-07-04
- Inventor: Vincent Chevrier
- Applicant: Vincent Chevrier
- Applicant Address: US NC Charlotte
- Assignee: Midrex Technologies, Inc.
- Current Assignee: Midrex Technologies, Inc.
- Current Assignee Address: US NC Charlotte
- Agency: Clements Bernard Walker PLLC
- Agent Christopher L. Bernard; Lawrence A. Baratta, Jr.
- Main IPC: C21C5/52
- IPC: C21C5/52 ; C21C7/064 ; C22C1/06 ; C22C1/02 ; C22C27/06 ; C22B34/32 ; C21B13/00 ; C21B13/10 ; C21B13/14

Abstract:
A method for producing a high purity high carbon molten chrome product from chrome and carbon bearing material, said method comprising the steps of: (a) continuously introducing chrome compacts directly into an electric melter; (b) heating and melting the chrome compacts in the electric melter at a temperature of between about 1300° C. to about 1700° C. to form high carbon molten chrome; (c) preventing oxidation of the high carbon molten chrome via minimization of the ingress of oxygen containing gas in said heating step; (d) carburizing the high carbon molten chrome to form high carbon molten metallized chrome; (e) purifying the high carbon molten metallized chrome by reducing silicon oxides to silicon and desulfurizing the high carbon molten metallized chrome to produce the high purity high carbon molten chrome product; and (f) discharging the high purity high carbon molten chrome product from the electric melter.
Public/Granted literature
- US20140352494A1 METHODS AND SYSTEMS FOR PRODUCING FERRO-CHROME IN A DUPLEX FURNACE Public/Granted day:2014-12-04
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