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Title: Method for treating liquid wastes

Abstract

The method of treating liquid waste in a media is accomplished by exposing the media to phosphinimines and sequestering .sup.99 Tc from the media by the phosphinimine (PN) functionalities. The system for treating the liquid waste in the media includes extraction of .sup.99 TcO.sub.4.sup.- from aqueous solutions into organic solvents or mixed organic/polar media, extraction of .sup.99 Tc from solutions on a solid matrix by using a container containing PN functionalities on solid matrices including an inlet and outlet for allowing flow of media through an immobilized phosphinimine ligand system contained within the container. Also, insoluble suspensions of phosphinimine functionalities on solid matrices in liquid solutions or present on supported liquid membranes (SLM) can be used to sequester .sup.99 Tc from those liquids.

Inventors:
 [1];  [1];  [1];  [1]
  1. (Columbia, MO)
Issue Date:
Research Org.:
University of Missouri
OSTI Identifier:
870223
Patent Number(s):
5478474
Assignee:
Curators of University of Missouri (Columbai, MO) CHO
DOE Contract Number:  
FG02-89ER60875
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
method; treating; liquid; wastes; waste; media; accomplished; exposing; phosphinimines; sequestering; 99; tc; phosphinimine; pn; functionalities; extraction; tco; aqueous; solutions; organic; solvents; mixed; polar; solid; matrix; container; containing; matrices; including; inlet; outlet; allowing; flow; immobilized; ligand; contained; insoluble; suspensions; supported; membranes; slm; sequester; liquids; liquid wastes; organic solvents; liquid solution; supported liquid; organic solvent; aqueous solution; aqueous solutions; liquid membrane; liquid waste; container containing; solid matrix; treating liquid; liquid membranes; mixed organic; /210/

Citation Formats

Katti, Kattesh V., Volkert, Wynn A., Singh, Prahlad, and Ketring, Alan R. Method for treating liquid wastes. United States: N. p., 1995. Web.
Katti, Kattesh V., Volkert, Wynn A., Singh, Prahlad, & Ketring, Alan R. Method for treating liquid wastes. United States.
Katti, Kattesh V., Volkert, Wynn A., Singh, Prahlad, and Ketring, Alan R. Sun . "Method for treating liquid wastes". United States. https://www.osti.gov/servlets/purl/870223.
@article{osti_870223,
title = {Method for treating liquid wastes},
author = {Katti, Kattesh V. and Volkert, Wynn A. and Singh, Prahlad and Ketring, Alan R.},
abstractNote = {The method of treating liquid waste in a media is accomplished by exposing the media to phosphinimines and sequestering .sup.99 Tc from the media by the phosphinimine (PN) functionalities. The system for treating the liquid waste in the media includes extraction of .sup.99 TcO.sub.4.sup.- from aqueous solutions into organic solvents or mixed organic/polar media, extraction of .sup.99 Tc from solutions on a solid matrix by using a container containing PN functionalities on solid matrices including an inlet and outlet for allowing flow of media through an immobilized phosphinimine ligand system contained within the container. Also, insoluble suspensions of phosphinimine functionalities on solid matrices in liquid solutions or present on supported liquid membranes (SLM) can be used to sequester .sup.99 Tc from those liquids.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1995},
month = {1}
}

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