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Title: Removal of radium from acidic solutions containing same by adsorption on coal fly ash

Abstract

The invention is a process for the removal of radium from acidic aqueous solutions. In one aspect, the invention is a process for removing radium from an inorganic-acid solution. The process comprises contacting the solution with coal fly ash to effect adsorption of the radium on the ash. The radium-containing ash then is separated from the solution. The process is simple, comparatively inexpensive, and efficient. High radium-distribution coefficients are obtained even at room temperature. Coal fly ash is an inexpensive, acid-resistant, high-surface-area material which is available in large quantities throughout the United States. The invention is applicable, for example, to the recovery of .sup.226 Ra from nitric acid solutions which have been used to leach radium from uranium-mill tailings.

Inventors:
 [1]
  1. (Oak Ridge, TN)
Issue Date:
Research Org.:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN
OSTI Identifier:
864877
Patent Number(s):
4431609
Assignee:
United States of America as represented by United States (Washington, DC) ORNL
DOE Contract Number:  
W-7405-ENG-26
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
removal; radium; acidic; solutions; containing; adsorption; coal; fly; ash; process; aqueous; aspect; removing; inorganic-acid; solution; comprises; contacting; effect; radium-containing; separated; simple; comparatively; inexpensive; efficient; radium-distribution; coefficients; obtained; temperature; acid-resistant; high-surface-area; material; available; quantities; throughout; united; applicable; example; recovery; 226; nitric; acid; leach; uranium-mill; tailings; coal fly; acid solutions; acid solution; comprises contacting; nitric acid; fly ash; aqueous solution; process comprises; aqueous solutions; solutions containing; acidic aqueous; acidic solution; acidic solutions; comparatively inexpensive; /423/210/

Citation Formats

Scheitlin, Frank M. Removal of radium from acidic solutions containing same by adsorption on coal fly ash. United States: N. p., 1984. Web.
Scheitlin, Frank M. Removal of radium from acidic solutions containing same by adsorption on coal fly ash. United States.
Scheitlin, Frank M. Sun . "Removal of radium from acidic solutions containing same by adsorption on coal fly ash". United States. https://www.osti.gov/servlets/purl/864877.
@article{osti_864877,
title = {Removal of radium from acidic solutions containing same by adsorption on coal fly ash},
author = {Scheitlin, Frank M.},
abstractNote = {The invention is a process for the removal of radium from acidic aqueous solutions. In one aspect, the invention is a process for removing radium from an inorganic-acid solution. The process comprises contacting the solution with coal fly ash to effect adsorption of the radium on the ash. The radium-containing ash then is separated from the solution. The process is simple, comparatively inexpensive, and efficient. High radium-distribution coefficients are obtained even at room temperature. Coal fly ash is an inexpensive, acid-resistant, high-surface-area material which is available in large quantities throughout the United States. The invention is applicable, for example, to the recovery of .sup.226 Ra from nitric acid solutions which have been used to leach radium from uranium-mill tailings.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1984},
month = {1}
}

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