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Separation of hafnium from zirconium in their tetrachloride solution in molten alkali metal chlorides

Journal Article:

Abstract

The coefficient of HfCl/sub 4/ and ZrCl/sub 4/ separation in the process of vapour sublimation from their solutions in molten NaCl, KCl, CsCl, NaCl-KCl and NaCl-CsCl equimolar mixtures is found to vary in the series from approximately 1.10 to approximately 1.22 and practically not to depend on the temperature (in the 600-910 deg) range and concentration (2-25 mol.% ZrCl/sub 4/+HfCl/sub 4/). HfCl/sub 4/ and ZrCl/sub 4/ are shown to form almost perfect solutions with each other, which in their turn form imperfect solutions with molten alkali metal chlorides, with the strength of hafnium complex chloride anions increasing higher than that of zirconium in the series from NaCl to CsCl.
Authors:
Salyulev, A B; Kudyakov, V Ya; Smirnov, M V; Moskalenko, N I [1] 
  1. AN SSSR, Sverdlovsk. Inst. Ehlektrokhimii
Publication Date:
Aug 01, 1984
Product Type:
Journal Article
Reference Number:
AIX-16-029740; EDB-85-073304
Resource Relation:
Journal Name: Zh. Prikl. Khim. (Leningrad); (USSR); Journal Volume: 57:8; Other Information: For English translation see the journal Journal of Applied Chemistry of the USSR (USA)
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; HAFNIUM CHLORIDES; DISTILLATION; ZIRCONIUM CHLORIDES; CESIUM CHLORIDES; HAFNIUM COMPLEXES; HIGH TEMPERATURE; MOLTEN SALTS; POTASSIUM CHLORIDES; QUANTITY RATIO; SODIUM CHLORIDES; SOLUTIONS; STABILITY; TEMPERATURE DEPENDENCE; VERY HIGH TEMPERATURE; ZIRCONIUM COMPLEXES; ALKALI METAL COMPOUNDS; CESIUM COMPOUNDS; CHLORIDES; CHLORINE COMPOUNDS; COMPLEXES; DISPERSIONS; HAFNIUM COMPOUNDS; HALIDES; HALOGEN COMPOUNDS; MIXTURES; POTASSIUM COMPOUNDS; REFRACTORY METAL COMPOUNDS; SALTS; SEPARATION PROCESSES; SODIUM COMPOUNDS; TRANSITION ELEMENT COMPLEXES; TRANSITION ELEMENT COMPOUNDS; ZIRCONIUM COMPOUNDS; 400201* - Chemical & Physicochemical Properties
OSTI ID:
5769111
Country of Origin:
USSR
Language:
Russian
Other Identifying Numbers:
Journal ID: CODEN: ZPKHA
Submitting Site:
HEDB
Size:
Pages: 1847-1850
Announcement Date:

Journal Article:

Citation Formats

Salyulev, A B, Kudyakov, V Ya, Smirnov, M V, and Moskalenko, N I. Separation of hafnium from zirconium in their tetrachloride solution in molten alkali metal chlorides. USSR: N. p., 1984. Web.
Salyulev, A B, Kudyakov, V Ya, Smirnov, M V, & Moskalenko, N I. Separation of hafnium from zirconium in their tetrachloride solution in molten alkali metal chlorides. USSR.
Salyulev, A B, Kudyakov, V Ya, Smirnov, M V, and Moskalenko, N I. 1984. "Separation of hafnium from zirconium in their tetrachloride solution in molten alkali metal chlorides." USSR.
@misc{etde_5769111,
title = {Separation of hafnium from zirconium in their tetrachloride solution in molten alkali metal chlorides}
author = {Salyulev, A B, Kudyakov, V Ya, Smirnov, M V, and Moskalenko, N I}
abstractNote = {The coefficient of HfCl/sub 4/ and ZrCl/sub 4/ separation in the process of vapour sublimation from their solutions in molten NaCl, KCl, CsCl, NaCl-KCl and NaCl-CsCl equimolar mixtures is found to vary in the series from approximately 1.10 to approximately 1.22 and practically not to depend on the temperature (in the 600-910 deg) range and concentration (2-25 mol.% ZrCl/sub 4/+HfCl/sub 4/). HfCl/sub 4/ and ZrCl/sub 4/ are shown to form almost perfect solutions with each other, which in their turn form imperfect solutions with molten alkali metal chlorides, with the strength of hafnium complex chloride anions increasing higher than that of zirconium in the series from NaCl to CsCl.}
journal = {Zh. Prikl. Khim. (Leningrad); (USSR)}
volume = {57:8}
journal type = {AC}
place = {USSR}
year = {1984}
month = {Aug}
}