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Title: Solvent for the simultaneous recovery of radionuclides from liquid radioactive wastes

Abstract

The present invention relates to solvents, and methods, for selectively extracting and recovering radionuclides, especially cesium and strontium, rare earths and actinides from liquid radioactive wastes. More specifically, the invention relates to extracting agent solvent compositions comprising complex organoboron compounds, substituted polyethylene glycols, and neutral organophosphorus compounds in a diluent. The preferred solvent comprises a chlorinated cobalt dicarbollide, diphenyl-dibutylmethylenecarbamoylphosphine oxide, PEG-400, and a diluent of phenylpolyfluoroalkyl sulfone. The invention also provides a method of using the invention extracting agents to recover cesium, strontium, rare earths and actinides from liquid radioactive waste.

Inventors:
 [1];  [1];  [1];  [2];  [3]
  1. (St. Petersburg, RU)
  2. (Aberdeen, ID)
  3. (Arco, ID)
Issue Date:
Research Org.:
Idaho National Engineering and Environmental Laboratory, Idaho Falls, ID
OSTI Identifier:
874820
Patent Number(s):
6468445
Assignee:
The United States of America as represented by the United States Department (Washington, DC) INEEL
DOE Contract Number:  
AC07-94ID13223
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
solvent; simultaneous; recovery; radionuclides; liquid; radioactive; wastes; relates; solvents; methods; selectively; extracting; recovering; especially; cesium; strontium; rare; earths; actinides; specifically; agent; compositions; comprising; complex; organoboron; compounds; substituted; polyethylene; glycols; neutral; organophosphorus; diluent; chlorinated; cobalt; dicarbollide; diphenyl-dibutylmethylenecarbamoylphosphine; oxide; peg-400; phenylpolyfluoroalkyl; sulfone; provides; method; agents; recover; waste; rare earth; radioactive waste; polyethylene glycol; liquid radioactive; selectively extract; /252/423/

Citation Formats

Romanovskiy, Valeriy Nicholiavich, Smirnov, Igor V., Babain, Vasiliy A., Todd, Terry A., and Brewer, Ken N. Solvent for the simultaneous recovery of radionuclides from liquid radioactive wastes. United States: N. p., 2002. Web.
Romanovskiy, Valeriy Nicholiavich, Smirnov, Igor V., Babain, Vasiliy A., Todd, Terry A., & Brewer, Ken N. Solvent for the simultaneous recovery of radionuclides from liquid radioactive wastes. United States.
Romanovskiy, Valeriy Nicholiavich, Smirnov, Igor V., Babain, Vasiliy A., Todd, Terry A., and Brewer, Ken N. Tue . "Solvent for the simultaneous recovery of radionuclides from liquid radioactive wastes". United States. https://www.osti.gov/servlets/purl/874820.
@article{osti_874820,
title = {Solvent for the simultaneous recovery of radionuclides from liquid radioactive wastes},
author = {Romanovskiy, Valeriy Nicholiavich and Smirnov, Igor V. and Babain, Vasiliy A. and Todd, Terry A. and Brewer, Ken N.},
abstractNote = {The present invention relates to solvents, and methods, for selectively extracting and recovering radionuclides, especially cesium and strontium, rare earths and actinides from liquid radioactive wastes. More specifically, the invention relates to extracting agent solvent compositions comprising complex organoboron compounds, substituted polyethylene glycols, and neutral organophosphorus compounds in a diluent. The preferred solvent comprises a chlorinated cobalt dicarbollide, diphenyl-dibutylmethylenecarbamoylphosphine oxide, PEG-400, and a diluent of phenylpolyfluoroalkyl sulfone. The invention also provides a method of using the invention extracting agents to recover cesium, strontium, rare earths and actinides from liquid radioactive waste.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2002},
month = {1}
}

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