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Title: 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:
 [1];  [2]
  1. Hamden, CT
  2. Guilford, CT
Publication Date:
Research Org.:
Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
OSTI Identifier:
864807
Patent Number(s):
US 4421662
Application Number:
06/414,725
Assignee:
Olin Corporation (New Haven, CT)
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. 1983. "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 = {},
url = {https://www.osti.gov/biblio/864807}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Dec 20 00:00:00 EST 1983},
month = {Tue Dec 20 00:00:00 EST 1983}
}