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Title: METHOD FOR REMOVING SODIUM OXIDE FROM LIQUID SODIUM

Abstract

A method is described for removing sodium oxide from a fluent stream of liquid sodium by coldtrapping the sodium oxide. Apparatus utilizing this method is disclosed in United States Patent No. 2,745,552. Sodium will remain in a molten state at temperatures below that at which sodium oxide will crystallize out and form solid deposits, therefore, the contaminated stream of sodium is cooled to a temperature at which the solubility of sodium oxide in sodium is substantially decreased. Thereafter the stream of sodium is passed through a bed of stainless steel wool maintained at a temperature below that of the stream. The stream is kept in contact with the wool until the sodium oxide is removed by crystal growth on the wool, then the stream is reheated and returned to the system. This method is useful in purifying reactor coolants where the sodium oxide would otherwise deposit out on the walls and eventually plug the coolant tubes.

Inventors:
;
Publication Date:
Research Org.:
Originating Research Org. not identified
OSTI Identifier:
4329503
Patent Number(s):
US 2815277
Assignee:
U.S. Atomic Energy Commission DTIE; NSA-12-006993
NSA Number:
NSA-12-006993
Resource Type:
Patent
Resource Relation:
Other Information: Orig. Receipt Date: 31-DEC-58
Country of Publication:
United States
Language:
English
Subject:
PATENTS; CLEANING; CONTAMINATION; COOLING; CRYSTALLIZATION; HEATING; LIQUIDS; PATENT; SODIUM; SODIUM OXIDES; SOLUBILITY; STAINLESS STEELS; TEMPERATURE

Citation Formats

Bruggeman, W.H., and Voorhees, B.G. METHOD FOR REMOVING SODIUM OXIDE FROM LIQUID SODIUM. United States: N. p., 1957. Web.
Bruggeman, W.H., & Voorhees, B.G. METHOD FOR REMOVING SODIUM OXIDE FROM LIQUID SODIUM. United States.
Bruggeman, W.H., and Voorhees, B.G. Sun . "METHOD FOR REMOVING SODIUM OXIDE FROM LIQUID SODIUM". United States.
@article{osti_4329503,
title = {METHOD FOR REMOVING SODIUM OXIDE FROM LIQUID SODIUM},
author = {Bruggeman, W.H. and Voorhees, B.G.},
abstractNote = {A method is described for removing sodium oxide from a fluent stream of liquid sodium by coldtrapping the sodium oxide. Apparatus utilizing this method is disclosed in United States Patent No. 2,745,552. Sodium will remain in a molten state at temperatures below that at which sodium oxide will crystallize out and form solid deposits, therefore, the contaminated stream of sodium is cooled to a temperature at which the solubility of sodium oxide in sodium is substantially decreased. Thereafter the stream of sodium is passed through a bed of stainless steel wool maintained at a temperature below that of the stream. The stream is kept in contact with the wool until the sodium oxide is removed by crystal growth on the wool, then the stream is reheated and returned to the system. This method is useful in purifying reactor coolants where the sodium oxide would otherwise deposit out on the walls and eventually plug the coolant tubes.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1957},
month = {12}
}