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Title: Continuous ion exchange separation of zirconium and hafnium

Abstract

A pressurized continuous annular chromatograph (CAC) has been developed for truly continuous ion exchange preparative separations. This device utilizes a slowly rotating annular bed of sorbent material, fixed multiple feed points, and fixed withdrawal locations. Most of our investigations have been performed with a 28-cm-diam by 60-cm-long CAC, but a larger model has recently been designed and constructed. A detailed study has been made of the separation of copper, nickel, and cobalt components from a simulated carbonate leach liquor of the Caron process for recovering nickel and cobalt from laterite ores. Recent studies have investigated the ion exchange separation of zirconium and hafnium from a sulfate feed solution. Nuclear reactor-grade zirconium, containing < 0.01 wt % hafnium, and hafnium, containing < 1% zirconium, have been continuously prepared using cation exchange resin in the pressurized CAC. This device, because of its continuous feed and product withdrawal, its adaptability to largescale operations, and its ability to separate many components, is expected to make chromatography a more competitive process in the industrial sector.

Authors:
;
Publication Date:
Research Org.:
Oak Ridge National Lab., TN (USA)
OSTI Identifier:
6644933
Report Number(s):
CONF-810203-3
TRN: 81-004808
DOE Contract Number:  
W-7405-ENG-26
Resource Type:
Conference
Resource Relation:
Conference: AIME annual meeting, Chicago, IL, USA, 22 Feb 1981
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; HAFNIUM; ION EXCHANGE CHROMATOGRAPHY; ZIRCONIUM; CATIONS; DESIGN; EQUIPMENT; MEDIUM PRESSURE; RESINS; SULFURIC ACID; CHARGED PARTICLES; CHROMATOGRAPHY; ELEMENTS; HYDROGEN COMPOUNDS; INORGANIC ACIDS; IONS; METALS; ORGANIC COMPOUNDS; ORGANIC POLYMERS; PETROCHEMICALS; PETROLEUM PRODUCTS; POLYMERS; REFRACTORY METALS; SEPARATION PROCESSES; TRANSITION ELEMENTS; 400105* - Separation Procedures

Citation Formats

Begovich, J. M., and Sisson, W. G. Continuous ion exchange separation of zirconium and hafnium. United States: N. p., 1981. Web.
Begovich, J. M., & Sisson, W. G. Continuous ion exchange separation of zirconium and hafnium. United States.
Begovich, J. M., and Sisson, W. G. 1981. "Continuous ion exchange separation of zirconium and hafnium". United States. https://www.osti.gov/servlets/purl/6644933.
@article{osti_6644933,
title = {Continuous ion exchange separation of zirconium and hafnium},
author = {Begovich, J. M. and Sisson, W. G.},
abstractNote = {A pressurized continuous annular chromatograph (CAC) has been developed for truly continuous ion exchange preparative separations. This device utilizes a slowly rotating annular bed of sorbent material, fixed multiple feed points, and fixed withdrawal locations. Most of our investigations have been performed with a 28-cm-diam by 60-cm-long CAC, but a larger model has recently been designed and constructed. A detailed study has been made of the separation of copper, nickel, and cobalt components from a simulated carbonate leach liquor of the Caron process for recovering nickel and cobalt from laterite ores. Recent studies have investigated the ion exchange separation of zirconium and hafnium from a sulfate feed solution. Nuclear reactor-grade zirconium, containing < 0.01 wt % hafnium, and hafnium, containing < 1% zirconium, have been continuously prepared using cation exchange resin in the pressurized CAC. This device, because of its continuous feed and product withdrawal, its adaptability to largescale operations, and its ability to separate many components, is expected to make chromatography a more competitive process in the industrial sector.},
doi = {},
url = {https://www.osti.gov/biblio/6644933}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Jan 01 00:00:00 EST 1981},
month = {Thu Jan 01 00:00:00 EST 1981}
}

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