Apparatus and methods for purifying lead

Title: Apparatus and methods for purifying lead

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Abstract

Disclosed is an exemplary method of purifying lead which includes the steps of placing lead and a fluoride salt blend in a container; forming a first fluid of molten lead at a first temperature; forming a second fluid of the molten fluoride salt blend at a second temperature higher than the first temperature; mixing the first fluid and the second fluid together; separating the two fluids; solidifying the molten fluoride salt blend at a temperature above a melting point of the lead; and removing the molten lead from the container. In certain exemplary methods the molten lead is removed from the container by decanting. In still other exemplary methods the molten salt blend is a Lewis base fluoride eutectic salt blend, and in yet other exemplary methods the molten salt blend contains sodium fluoride, lithium fluoride, and potassium fluoride.

Inventors:: Tunison, Harmon M.

Issue Date:: 2016-01-12

Research Org.:: Knolls Atomic Power Lab. (KAPL), Niskayuna, NY (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1234644

Patent Number(s):: 9234258

Application Number:: 14/182,788

Assignee:: U.S. Department of Energy

Patent Classifications (CPCs):: C - CHEMISTRY C22 - METALLURGY C22B - PRODUCTION AND REFINING OF METALS

G - PHYSICS G21 - NUCLEAR PHYSICS G21F - PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT

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C - CHEMISTRY C22 - METALLURGY C22B - PRODUCTION AND REFINING OF METALS
C22B13/02 - by dry processes
C22B13/06 - Refining
C22B9/106 - {the refining being obtained by intimately mixing the molten metal with a molten salt or slag}

G - PHYSICS G21 - NUCLEAR PHYSICS G21F - PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT
G21F9/308 - {by melting the waste

C - CHEMISTRY C22 - METALLURGY C22B - PRODUCTION AND REFINING OF METALS
C22B9/103 - {Methods of introduction of solid or liquid refining or fluxing agents}
C22B13/025 - {Recovery from waste materials}
C22B9/10 - with refining or fluxing agents

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DOE Contract Number:: AC12-00SN39357

Resource Type:: Patent

Resource Relation:: Patent File Date: 2014 Feb 18

Country of Publication:: United States

Language:: English

Subject:: 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 36 MATERIALS SCIENCE

Citation Formats


                    Tunison, Harmon M. Apparatus and methods for purifying lead.  United States: N. p., 2016. 
        Web.

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                    Tunison, Harmon M. Apparatus and methods for purifying lead.  United States.

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                    Tunison, Harmon M. Tue .  
        "Apparatus and methods for purifying lead".  United States.  https://www.osti.gov/servlets/purl/1234644.

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@article{osti_1234644,

  title        = {Apparatus and methods for purifying lead},

  author       = {Tunison, Harmon M.},

  abstractNote = {Disclosed is an exemplary method of purifying lead which includes the steps of placing lead and a fluoride salt blend in a container; forming a first fluid of molten lead at a first temperature; forming a second fluid of the molten fluoride salt blend at a second temperature higher than the first temperature; mixing the first fluid and the second fluid together; separating the two fluids; solidifying the molten fluoride salt blend at a temperature above a melting point of the lead; and removing the molten lead from the container. In certain exemplary methods the molten lead is removed from the container by decanting. In still other exemplary methods the molten salt blend is a Lewis base fluoride eutectic salt blend, and in yet other exemplary methods the molten salt blend contains sodium fluoride, lithium fluoride, and potassium fluoride.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2016},

  month        = {1}

}

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