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:
-
- (Hinsdale, IL)
- Issue Date:
- Research Org.:
- Argonne National Laboratory (ANL), Argonne, IL (United States)
- OSTI Identifier:
- 862473
- Patent Number(s):
- 3941586
- Assignee:
- United States of America as represented by United States Energy (Washington, DC)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C22 - METALLURGY C22B - PRODUCTION AND REFINING OF METALS
G - PHYSICS G21 - NUCLEAR PHYSICS G21C - NUCLEAR REACTORS
- 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 = {Thu Jan 01 00:00:00 EST 1976},
month = {Thu Jan 01 00:00:00 EST 1976}
}
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