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:
- Issue Date:
- Research Org.:
- Originating Research Org. not identified
- OSTI Identifier:
- 4329503
- Patent Number(s):
- 2815277
- Assignee:
- U.S. Atomic Energy Commission
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
C - CHEMISTRY C22 - METALLURGY C22B - PRODUCTION AND REFINING OF METALS
- 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 = {Sun Dec 01 00:00:00 EST 1957},
month = {Sun Dec 01 00:00:00 EST 1957}
}