Method and apparatus for removal of gaseous, liquid and particulate contaminants from molten metals

Hobson, David O; Alexeff, Igor; Sikka, Vinod K

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Title: Method and apparatus for removal of gaseous, liquid and particulate contaminants from molten metals

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Abstract

Method and apparatus for removal of nonelectrically-conducting gaseous, liquid, and particulate contaminants from molten metal compositions by applying a force thereto. The force (commonly referred to as the Lorentz Force) exerted by simultaneous application of an electric field and a magnetic field on a molten conductor causes an increase, in the same direction as the force, in the apparent specific gravity thereof, but does not affect the nonconducting materials. This difference in apparent densities cause the nonconducting materials to "float" in the opposite direction from the Lorentz Force at a rapid rate. Means are further provided for removal of the contaminants and prevention of stirring due to rotational forces generated by the applied fields.

Inventors:

Hobson, David O ^[1]; Alexeff, Igor ^[1]; Sikka, Vinod K ^[2]

Oak Ridge, TN
Clinton, TN

Issue Date:: Fri Jan 01 00:00:00 EST 1988

Research Org.:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

OSTI Identifier:: 866784

Patent Number(s):: 4786320

Assignee:: United States of America as represented by Deprtment of Energy (Washington, DC)

Patent Classifications (CPCs):: B - PERFORMING OPERATIONS B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS B03C - MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS

C - CHEMISTRY C22 - METALLURGY C22B - PRODUCTION AND REFINING OF METALS

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B - PERFORMING OPERATIONS B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS B03C - MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS
B03C1/32 - acting on the medium containing the substance being separated, e.g. magnetogravimetric-, magnetohydrostatic-, or magnetohydrodynamic separation {

C - CHEMISTRY C22 - METALLURGY C22B - PRODUCTION AND REFINING OF METALS
C22B4/00 - Electrothermal treatment of ores or metallurgical products for obtaining metals or alloys
C22B9/00 - General processes of refining or remelting of metals

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Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: method; apparatus; removal; gaseous; liquid; particulate; contaminants; molten; metals; nonelectrically-conducting; metal; compositions; applying; force; thereto; commonly; referred; lorentz; exerted; simultaneous; application; electric; field; magnetic; conductor; causes; increase; direction; apparent; specific; gravity; affect; nonconducting; materials; difference; densities; float; opposite; rapid; rate; means; provided; prevention; stirring; due; rotational; forces; generated; applied; fields; molten metals; particulate contaminants; opposite direction; specific gravity; conducting material; electric field; molten metal; magnetic field; metal composition; simultaneous application; lorentz force; rapid rate; metal compositions; commonly referred; applied fields; conducting gas; /266/75/

Citation Formats


                    Hobson, David O, Alexeff, Igor, and Sikka, Vinod K. Method and apparatus for removal of gaseous, liquid and particulate contaminants from molten metals.  United States: N. p., 1988. 
        Web.

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                    Hobson, David O, Alexeff, Igor, & Sikka, Vinod K. Method and apparatus for removal of gaseous, liquid and particulate contaminants from molten metals.  United States.

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                    Hobson, David O, Alexeff, Igor, and Sikka, Vinod K. Fri .  
        "Method and apparatus for removal of gaseous, liquid and particulate contaminants from molten metals".  United States.  https://www.osti.gov/servlets/purl/866784.

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@article{osti_866784,

  title        = {Method and apparatus for removal of gaseous, liquid and particulate contaminants from molten metals},

  author       = {Hobson, David O and Alexeff, Igor and Sikka, Vinod K},

  abstractNote = {Method and apparatus for removal of nonelectrically-conducting gaseous, liquid, and particulate contaminants from molten metal compositions by applying a force thereto. The force (commonly referred to as the Lorentz Force) exerted by simultaneous application of an electric field and a magnetic field on a molten conductor causes an increase, in the same direction as the force, in the apparent specific gravity thereof, but does not affect the nonconducting materials. This difference in apparent densities cause the nonconducting materials to "float" in the opposite direction from the Lorentz Force at a rapid rate. Means are further provided for removal of the contaminants and prevention of stirring due to rotational forces generated by the applied fields.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {Fri Jan 01 00:00:00 EST 1988},

  month        = {Fri Jan 01 00:00:00 EST 1988}

}

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