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Title: Method and apparatus for regenerating cold traps within liquid-metal systems

Abstract

Oxide and hydride impurities of a liquid metal such as sodium are removed from a cold trap by heating to a temperature at which the metal hydroxide is stable in a molten state. The partial pressure of hydrogen within the system is measured to determine if excess hydride or oxide is present. Excess hydride is removed by venting hydrogen gas while excess oxide can be converted to molten hydroxide through the addition of hydrogen. The resulting, molten hydroxide is drained from the trap which is then returned to service at cold trap temperatures within the liquid-metal system.

Inventors:
 [1]
  1. (Hinsdale, IL)
Issue Date:
Research Org.:
Argonne National Laboratory (ANL), Argonne, IL
OSTI Identifier:
862473
Patent Number(s):
3941586
Assignee:
United States of America as represented by United States Energy (Washington, DC) ANL
DOE Contract Number:  
W-31109-ENG-38
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
method; apparatus; regenerating; cold; traps; liquid-metal; systems; oxide; hydride; impurities; liquid; metal; sodium; removed; trap; heating; temperature; hydroxide; stable; molten; partial; pressure; hydrogen; measured; determine; excess; venting; gas; converted; addition; resulting; drained; returned; service; temperatures; cold trap; hydrogen gas; liquid metal; partial pressure; metal hydroxide; metal systems; /75/210/376/423/976/

Citation Formats

McKee, Jr., John M. Method and apparatus for regenerating cold traps within liquid-metal systems. United States: N. p., 1976. Web.
McKee, Jr., John M. Method and apparatus for regenerating cold traps within liquid-metal systems. United States.
McKee, Jr., John M. Thu . "Method and apparatus for regenerating cold traps within liquid-metal systems". United States. https://www.osti.gov/servlets/purl/862473.
@article{osti_862473,
title = {Method and apparatus for regenerating cold traps within liquid-metal systems},
author = {McKee, Jr., John M.},
abstractNote = {Oxide and hydride impurities of a liquid metal such as sodium are removed from a cold trap by heating to a temperature at which the metal hydroxide is stable in a molten state. The partial pressure of hydrogen within the system is measured to determine if excess hydride or oxide is present. Excess hydride is removed by venting hydrogen gas while excess oxide can be converted to molten hydroxide through the addition of hydrogen. The resulting, molten hydroxide is drained from the trap which is then returned to service at cold trap temperatures within the liquid-metal system.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1976},
month = {1}
}

Patent:

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