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Title: Method for the simultaneous recovery of radionuclides from liquid radioactive wastes using a solvent

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:
873841
Patent Number(s):
6258333
Assignee:
United States of America as represented by United States Department (Washington, DC) INEEL
DOE Contract Number:  
AC07-94ID13223
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
method; simultaneous; recovery; radionuclides; liquid; radioactive; wastes; solvent; 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; preferred; comprises; chlorinated; cobalt; dicarbollide; diphenyl-dibutylmethylenecarbamoylphosphine; oxide; peg-400; phenylpolyfluoroalkyl; sulfone; provides; agents; recover; waste; selectively extracting; simultaneous recovery; liquid radioactive; phosphine oxide; ethylene glycol; polyethylene glycol; rare earths; rare earth; radioactive waste; radioactive wastes; solvent composition; compositions comprising; cobalt dicarbollide; solvent comprises; organophosphorus compounds; boron compound; polyethylene glycols; selectively extract; neutral organophosphorus; organophosphorus compound; substituted poly; solvent comprise; phosphorus compounds; /423/

Citation Formats

Romanovskiy, Valeriy Nicholiavich, Smirnov, Igor V., Babain, Vasiliy A., Todd, Terry A., and Brewer, Ken N. Method for the simultaneous recovery of radionuclides from liquid radioactive wastes using a solvent. United States: N. p., 2001. Web.
Romanovskiy, Valeriy Nicholiavich, Smirnov, Igor V., Babain, Vasiliy A., Todd, Terry A., & Brewer, Ken N. Method for the simultaneous recovery of radionuclides from liquid radioactive wastes using a solvent. United States.
Romanovskiy, Valeriy Nicholiavich, Smirnov, Igor V., Babain, Vasiliy A., Todd, Terry A., and Brewer, Ken N. Mon . "Method for the simultaneous recovery of radionuclides from liquid radioactive wastes using a solvent". United States. https://www.osti.gov/servlets/purl/873841.
@article{osti_873841,
title = {Method for the simultaneous recovery of radionuclides from liquid radioactive wastes using a solvent},
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 = {2001},
month = {1}
}

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