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Title: Preparation and use of tetra-alkyl cobalt dicarbollide for extraction of cesium and strontium into hydrocarbon solvents

Abstract

Preparation and use of tetra-C-alkyl cobalt dicarbollide for extraction of cesium and strontium into hydrocarbon solvents. Tetra-C-alkyl derivatives of cobalt dicarbollide, Co(C.sub.2 R.sub.2 B.sub.9 H.sub.9).sub.2.sup.- (CoB.sub.2 R.sub.4.sup.- ; R=CH.sub.3 and C.sub.6 H.sub.13) are demonstrated to be significant cesium and strontium extractants from acidic and alkaline solutions into non-toxic organic solvent systems. Extractions using mesitylene and diethylbenzene are compared to those with nitrobenzene as the organic phase. CoB.sub.2 -hexyl.sub.4.sup.- in diethylbenzene shows improved selectivity (10.sup.4) for Cs over Na in acidic solution. In dilute alkaline solution, CoB.sub.2 -hexyl.sub.4.sup.- extracts Cs less efficiently, but more effectively removes Sr from higher base concentrations. A general synthesis of tetra-C-alkyl cobalt dicarbollides is described.

Inventors:
 [1];  [2];  [1];  [1]
  1. Los Alamos, NM
  2. Santa Fe, NM
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
OSTI Identifier:
870833
Patent Number(s):
US 5603074
Assignee:
Regents of University of California (Los Alamos, NM)
DOE Contract Number:  
W-7405-ENG-36
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
preparation; tetra-alkyl; cobalt; dicarbollide; extraction; cesium; strontium; hydrocarbon; solvents; tetra-c-alkyl; derivatives; cob; 13; demonstrated; significant; extractants; acidic; alkaline; solutions; non-toxic; organic; solvent; systems; extractions; mesitylene; diethylbenzene; compared; nitrobenzene; phase; -hexyl; improved; selectivity; 10; cs; na; solution; dilute; extracts; efficiently; effectively; removes; sr; base; concentrations; synthesis; dicarbollides; described; alkaline solutions; organic phase; organic solvent; cobalt dicarbollide; acidic solution; improved selectivity; alkaline solution; solvent systems; hydrocarbon solvent; effectively removes; toxic organic; hydrocarbon solvents; effectively remove; /423/210/

Citation Formats

Miller, Rebecca L, Pinkerton, Anthony B, Abney, Kent D, and Kinkead, Scott A. Preparation and use of tetra-alkyl cobalt dicarbollide for extraction of cesium and strontium into hydrocarbon solvents. United States: N. p., 1997. Web.
Miller, Rebecca L, Pinkerton, Anthony B, Abney, Kent D, & Kinkead, Scott A. Preparation and use of tetra-alkyl cobalt dicarbollide for extraction of cesium and strontium into hydrocarbon solvents. United States.
Miller, Rebecca L, Pinkerton, Anthony B, Abney, Kent D, and Kinkead, Scott A. 1997. "Preparation and use of tetra-alkyl cobalt dicarbollide for extraction of cesium and strontium into hydrocarbon solvents". United States. https://www.osti.gov/servlets/purl/870833.
@article{osti_870833,
title = {Preparation and use of tetra-alkyl cobalt dicarbollide for extraction of cesium and strontium into hydrocarbon solvents},
author = {Miller, Rebecca L and Pinkerton, Anthony B and Abney, Kent D and Kinkead, Scott A},
abstractNote = {Preparation and use of tetra-C-alkyl cobalt dicarbollide for extraction of cesium and strontium into hydrocarbon solvents. Tetra-C-alkyl derivatives of cobalt dicarbollide, Co(C.sub.2 R.sub.2 B.sub.9 H.sub.9).sub.2.sup.- (CoB.sub.2 R.sub.4.sup.- ; R=CH.sub.3 and C.sub.6 H.sub.13) are demonstrated to be significant cesium and strontium extractants from acidic and alkaline solutions into non-toxic organic solvent systems. Extractions using mesitylene and diethylbenzene are compared to those with nitrobenzene as the organic phase. CoB.sub.2 -hexyl.sub.4.sup.- in diethylbenzene shows improved selectivity (10.sup.4) for Cs over Na in acidic solution. In dilute alkaline solution, CoB.sub.2 -hexyl.sub.4.sup.- extracts Cs less efficiently, but more effectively removes Sr from higher base concentrations. A general synthesis of tetra-C-alkyl cobalt dicarbollides is described.},
doi = {},
url = {https://www.osti.gov/biblio/870833}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1997},
month = {1}
}

Works referenced in this record:

A New Series of Organoboranes. III. Some Reactions of 1,2-Dicarbaclovododecaborane(12) and its Derivatives
journal, December 1963


.pi.-Dicarbollyl derivatives of the transition metals. Metallocene analogs
journal, February 1968


Extraction of Cesium and Strontium into Hydrocarbon Solvents Using Tetra-C-Alkyl Cobalt Dicarbollide
journal, August 1995