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Title: Steel refining with an electrochemical cell

Abstract

Apparatus is described for processing a metallic fluid containing iron oxide, container for a molten metal including an electrically conductive refractory disposed for contact with the molten metal which contains iron oxide, an electrolyte in the form of a basic slag on top of the molten metal, an electrode in the container in contact with the slag electrically separated from the refractory, and means for establishing a voltage across the refractory and the electrode to reduce iron oxide to iron at the surface of the refractory in contact with the iron oxide containing fluid. A process is disclosed for refining an iron product containing not more than about 10% by weight oxygen and not more than about 10% by weight sulfur, comprising providing an electrolyte of a slag containing one or more of calcium oxide, magnesium oxide, silica or alumina, providing a cathode of the iron product in contact with the electrolyte, providing an anode in contact with the electrolyte electrically separated from the cathode, and operating an electrochemical cell formed by the anode, the cathode and the electrolyte to separate oxygen or sulfur present in the iron product therefrom. 2 figs.

Inventors:
;
Issue Date:
OSTI Identifier:
7022116
Patent Number(s):
4744875 A
Application Number:
PPN: US 7-028989
Assignee:
Dept. of Energy, Washington, DC (United States) PTO; EDB-94-115934
DOE Contract Number:  
W-31109-ENG-38
Resource Type:
Patent
Resource Relation:
Patent File Date: 23 Mar 1987
Country of Publication:
United States
Language:
English
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; ELECTROCHEMICAL CELLS; DESIGN; IRON; PRODUCTION; IRON OXIDES; DESULFURIZATION; ELECTROLYSIS; REDUCTION; ALUMINIUM OXIDES; LIQUID METALS; SILICON OXIDES; ALUMINIUM COMPOUNDS; CHALCOGENIDES; CHEMICAL REACTIONS; ELEMENTS; FLUIDS; IRON COMPOUNDS; LIQUIDS; LYSIS; METALS; OXIDES; OXYGEN COMPOUNDS; SILICON COMPOUNDS; TRANSITION ELEMENT COMPOUNDS; TRANSITION ELEMENTS; 320303* - Energy Conservation, Consumption, & Utilization- Industrial & Agricultural Processes- Equipment & Processes

Citation Formats

Blander, M., and Cook, G.M. Steel refining with an electrochemical cell. United States: N. p., 1988. Web.
Blander, M., & Cook, G.M. Steel refining with an electrochemical cell. United States.
Blander, M., and Cook, G.M. Tue . "Steel refining with an electrochemical cell". United States.
@article{osti_7022116,
title = {Steel refining with an electrochemical cell},
author = {Blander, M. and Cook, G.M.},
abstractNote = {Apparatus is described for processing a metallic fluid containing iron oxide, container for a molten metal including an electrically conductive refractory disposed for contact with the molten metal which contains iron oxide, an electrolyte in the form of a basic slag on top of the molten metal, an electrode in the container in contact with the slag electrically separated from the refractory, and means for establishing a voltage across the refractory and the electrode to reduce iron oxide to iron at the surface of the refractory in contact with the iron oxide containing fluid. A process is disclosed for refining an iron product containing not more than about 10% by weight oxygen and not more than about 10% by weight sulfur, comprising providing an electrolyte of a slag containing one or more of calcium oxide, magnesium oxide, silica or alumina, providing a cathode of the iron product in contact with the electrolyte, providing an anode in contact with the electrolyte electrically separated from the cathode, and operating an electrochemical cell formed by the anode, the cathode and the electrolyte to separate oxygen or sulfur present in the iron product therefrom. 2 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1988},
month = {5}
}