Nonaqueous purification of mixed nitrate heat transfer media
Abstract
A nonaqueous, in-line method for removing carbonate and hydroxide contamination from a molten mixed sodium nitrate/potassium nitrate heat transfer salt. The method comprises dissolving a stoichiometric quantity of anhydrous Ca(NO.sub.3).sub.2 in the melt whereby an insoluble CaCO.sub.3 and Ca(OH).sub.2 precipitate is formed. The precipitate can be removed by settling, filtration or floatation techniques.
- Inventors:
-
- Hamden, CT
- Guilford, CT
- Issue Date:
- Research Org.:
- Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
- OSTI Identifier:
- 864807
- Patent Number(s):
- 4421662
- Application Number:
- 06/414,725
- Assignee:
- Olin Corporation (New Haven, CT)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01D - COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01F - COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- nonaqueous; purification; mixed; nitrate; heat; transfer; media; in-line; method; removing; carbonate; hydroxide; contamination; molten; sodium; potassium; salt; comprises; dissolving; stoichiometric; quantity; anhydrous; melt; whereby; insoluble; caco; oh; precipitate; formed; removed; settling; filtration; floatation; techniques; comprises dissolving; potassium nitrate; method comprises; heat transfer; sodium nitrate; oxide contamination; method comprise; removing carbon; nitrate heat; transfer media; stoichiometric quantity; /252/423/
Citation Formats
Fiorucci, Louis C, and Morgan, Michael J. Nonaqueous purification of mixed nitrate heat transfer media. United States: N. p., 1983.
Web.
Fiorucci, Louis C, & Morgan, Michael J. Nonaqueous purification of mixed nitrate heat transfer media. United States.
Fiorucci, Louis C, and Morgan, Michael J. Tue .
"Nonaqueous purification of mixed nitrate heat transfer media". United States. https://www.osti.gov/servlets/purl/864807.
@article{osti_864807,
title = {Nonaqueous purification of mixed nitrate heat transfer media},
author = {Fiorucci, Louis C and Morgan, Michael J},
abstractNote = {A nonaqueous, in-line method for removing carbonate and hydroxide contamination from a molten mixed sodium nitrate/potassium nitrate heat transfer salt. The method comprises dissolving a stoichiometric quantity of anhydrous Ca(NO.sub.3).sub.2 in the melt whereby an insoluble CaCO.sub.3 and Ca(OH).sub.2 precipitate is formed. The precipitate can be removed by settling, filtration or floatation techniques.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1983},
month = {12}
}
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