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Title: Method for purifying bidentate organophosphorous compounds

Abstract

Bidentate organophosphorous compounds are purified of undesirable impurities by contacting a solution of the compounds with a mercuric nitrate solution to form an insoluble mercuric bidentate compound which precipitates while the impurities remain in solution. The precipitate is washed and then contacted with a mixture of an aqueous solution of a strong mercuric ion complexing agent and an organic solvent to complex the mercuric ion away from the bidentate compound which then dissolves in the solvent. The purified bidentate compounds are useful for extracting the actinide elements from aqueous acidic nuclear waste solutions.

Inventors:
 [1];  [2];  [3]
  1. (Blackfoot, ID)
  2. (Idaho Falls, ID)
  3. (Pocatello, ID)
Issue Date:
Research Org.:
ALLIED CHEMICAL CORP
OSTI Identifier:
863920
Patent Number(s):
4276235
Assignee:
United States of America as represented by United States (Washington, DC) OSTI
DOE Contract Number:  
AC07-76ID01540
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
method; purifying; bidentate; organophosphorous; compounds; purified; undesirable; impurities; contacting; solution; mercuric; nitrate; form; insoluble; compound; precipitates; remain; precipitate; washed; contacted; mixture; aqueous; strong; complexing; agent; organic; solvent; complex; dissolves; useful; extracting; actinide; elements; acidic; nuclear; waste; solutions; nitrate solution; aqueous acid; aqueous acidic; organic solvent; aqueous solution; waste solutions; nuclear waste; complexing agent; waste solution; bidentate organophosphorous; acidic nuclear; mercuric nitrate; actinide elements; purifying bidentate; organophosphorous compounds; /999/423/987/

Citation Formats

McIsaac, Lyle D., Krupa, Joseph F., and Schroeder, Norman C. Method for purifying bidentate organophosphorous compounds. United States: N. p., 1981. Web.
McIsaac, Lyle D., Krupa, Joseph F., & Schroeder, Norman C. Method for purifying bidentate organophosphorous compounds. United States.
McIsaac, Lyle D., Krupa, Joseph F., and Schroeder, Norman C. Thu . "Method for purifying bidentate organophosphorous compounds". United States. https://www.osti.gov/servlets/purl/863920.
@article{osti_863920,
title = {Method for purifying bidentate organophosphorous compounds},
author = {McIsaac, Lyle D. and Krupa, Joseph F. and Schroeder, Norman C.},
abstractNote = {Bidentate organophosphorous compounds are purified of undesirable impurities by contacting a solution of the compounds with a mercuric nitrate solution to form an insoluble mercuric bidentate compound which precipitates while the impurities remain in solution. The precipitate is washed and then contacted with a mixture of an aqueous solution of a strong mercuric ion complexing agent and an organic solvent to complex the mercuric ion away from the bidentate compound which then dissolves in the solvent. The purified bidentate compounds are useful for extracting the actinide elements from aqueous acidic nuclear waste solutions.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1981},
month = {1}
}

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