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Title: Alkali metal nitrate purification

Abstract

A process is disclosed for removing contaminants from impure alkali metal nitrates containing them. The process comprises heating the impure alkali metal nitrates in solution form or molten form at a temperature and for a time sufficient to effect precipitation of solid impurities and separating the solid impurities from the resulting purified alkali metal nitrates. The resulting purified alkali metal nitrates in solution form may be heated to evaporate water therefrom to produce purified molten alkali metal nitrates suitable for use as a heat transfer medium. If desired, the purified molten form may be granulated and cooled to form discrete solid particles of purified alkali metal nitrates.

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:
865755
Patent Number(s):
US 4568352
Application Number:
06/613,667
Assignee:
Olin Corporation (Cheshire, CT)
DOE Contract Number:  
84-3878
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
alkali; metal; nitrate; purification; process; disclosed; removing; contaminants; impure; nitrates; containing; comprises; heating; solution; form; molten; temperature; time; sufficient; effect; precipitation; solid; impurities; separating; resulting; purified; heated; evaporate; water; therefrom; produce; suitable; heat; transfer; medium; desired; granulated; cooled; discrete; particles; purified molten; removing contaminants; molten form; metal nitrates; solid particles; time sufficient; alkali metal; heat transfer; process comprises; molten alkali; transfer medium; comprises heating; metal nitrate; water therefrom; solid particle; solution form; nitrates containing; form discrete; impure alkali; /23/252/

Citation Formats

Fiorucci, Louis C, and Morgan, Michael J. Alkali metal nitrate purification. United States: N. p., 1986. Web.
Fiorucci, Louis C, & Morgan, Michael J. Alkali metal nitrate purification. United States.
Fiorucci, Louis C, and Morgan, Michael J. Tue . "Alkali metal nitrate purification". United States. https://www.osti.gov/servlets/purl/865755.
@article{osti_865755,
title = {Alkali metal nitrate purification},
author = {Fiorucci, Louis C and Morgan, Michael J},
abstractNote = {A process is disclosed for removing contaminants from impure alkali metal nitrates containing them. The process comprises heating the impure alkali metal nitrates in solution form or molten form at a temperature and for a time sufficient to effect precipitation of solid impurities and separating the solid impurities from the resulting purified alkali metal nitrates. The resulting purified alkali metal nitrates in solution form may be heated to evaporate water therefrom to produce purified molten alkali metal nitrates suitable for use as a heat transfer medium. If desired, the purified molten form may be granulated and cooled to form discrete solid particles of purified alkali metal nitrates.},
doi = {},
url = {https://www.osti.gov/biblio/865755}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1986},
month = {2}
}

Patent:

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