Plasma vitrification of waste materials

McLaughlin, D F; Dighe, S V; Gass, W R

Title: Plasma vitrification of waste materials

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Abstract

This invention provides a process wherein hazardous or radioactive wastes in the form of liquids, slurries, or finely divided solids are mixed with finely divided glassformers (silica, alumina, soda, etc.) and injected directly into the plume of a non-transferred arc plasma torch. The extremely high temperatures and heat transfer rates makes it possible to convert the waste-glassformer mixture into a fully vitrified molten glass product in a matter of milliseconds. The molten product may then be collected in a crucible for casting into final wasteform geometry, quenching in water, or further holding time to improve homogeneity and eliminate bubbles. 4 figs.

Inventors:: McLaughlin, D F; Dighe, S V; Gass, W R

Issue Date:: 1997-06-10

Research Org.:: Westinghouse Hanford Co

Sponsoring Org.:: USDOE, Washington, DC (United States)

OSTI Identifier:: 489079

Patent Number(s):: 5637127

Application Number:: PAN: 8-566,238; TRN: 97:011393

Assignee:: Westinghouse Electric Corp., Pittsburgh, PA (United States)

DOE Contract Number:: AC06-87RL10930

Resource Type:: Patent

Resource Relation:: Other Information: PBD: 10 Jun 1997

Country of Publication:: United States

Language:: English

Subject:: 05 NUCLEAR FUELS; HAZARDOUS MATERIALS; RADIOACTIVE WASTES; VITRIFICATION; LIQUID WASTES; SLURRIES; PARTICULATES; PLASMA FURNACES; RADIOACTIVE WASTE PROCESSING

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                    McLaughlin, D F, Dighe, S V, and Gass, W R. Plasma vitrification of waste materials.  United States: N. p., 1997. 
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                    McLaughlin, D F, Dighe, S V, & Gass, W R. Plasma vitrification of waste materials.  United States.

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                    McLaughlin, D F, Dighe, S V, and Gass, W R. Tue .  
        "Plasma vitrification of waste materials".  United States.

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@article{osti_489079,

  title        = {Plasma vitrification of waste materials},

  author       = {McLaughlin, D F and Dighe, S V and Gass, W R},

  abstractNote = {This invention provides a process wherein hazardous or radioactive wastes in the form of liquids, slurries, or finely divided solids are mixed with finely divided glassformers (silica, alumina, soda, etc.) and injected directly into the plume of a non-transferred arc plasma torch. The extremely high temperatures and heat transfer rates makes it possible to convert the waste-glassformer mixture into a fully vitrified molten glass product in a matter of milliseconds. The molten product may then be collected in a crucible for casting into final wasteform geometry, quenching in water, or further holding time to improve homogeneity and eliminate bubbles. 4 figs.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1997},

  month        = {6}

}

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