National Technical Reports Library - NTRL

National Technical Reports Library

The National Technical Information Service acquires, indexes, abstracts, and archives the largest collection of U.S. government-sponsored technical reports in existence. The NTRL offers online, free and open access to these authenticated government technical reports. Technical reports and documents in its repository may be available online for free either from the issuing federal agency, the U.S. Government Publishing Office’s Federal Digital System website, or through search engines.




Details
Actions:

Extraction of Lanthanides and Actinides (III) By DI-2 Ethyl Dithiophosphoric Acid and DI-2 Ethyl Hexyl Monothiophosphoric Acid. Structure of the Complexes in the Organic Phase.


DE87752225

Publication Date 1986
Personal Author Pattee, D.; Musikas, C.; Faure, A.; Chachaty, C.
Page Count 9
Abstract To operate a trivalent actinide-lanthanide (III) group chemical separation from low pH nitric solutions we studied the extractive properties of the di-2 ethyl hexyl dithiophosphoric acid (HDEHDTP); this bidentate ligand which possesses a sulfur donor atom is a good extractant of soft acids. We so expect a better selectivity for the actinides (III) extraction. We also have investigated extractive properties of di-2 ethyl hexyl monothiophosphoric acid (HDEHTP) for trivalent actinides and lanthanides; HDEHDTP is a bidentate ligand with one oxygen donor atom and so is a better extractant for hard acids like actinides and lanthanides (III); but its selectivity is weak. The addition of TBP (tri-n butyl phosphate) to HDEHDTP deals to strong synergistic organic complexes with a great selectivity for Am(III). We explicited this phenomenon. When the metal is macroconcentrated the organic complexes aggregate and form inverted micelles. (ERA citation 12:043034)
Keywords
  • Americium
  • Europium
  • Neodymium
  • Ligands
  • Nitric Acid
  • Partition
  • Solvent Extraction
  • Synergism
  • Thiophosphoric Acid Esters
  • Foreign technology
  • ERDA/050800
Source Agency
  • TIC Foreign Exchange Reports
NTIS Subject Category
  • 99E - Photochemistry and Radiation Chemistry
  • 99F - Physical & Theoretical Chemistry
Corporate Authors CEA Centre d'Etudes Nucleaires de Fontenay-aux-Roses (France). Dept. de Genie Radioactif.
Supplemental Notes ISEC '86: international solvent extraction conference, Munich, F.R. Germany, 11 Sep 1986.
Document Type Conference Proceedings
NTIS Issue Number 198803
Extraction of Lanthanides and Actinides (III) By DI-2 Ethyl Dithiophosphoric Acid and DI-2 Ethyl Hexyl Monothiophosphoric Acid. Structure of the Complexes in the Organic Phase.
Extraction of Lanthanides and Actinides (III) By DI-2 Ethyl Dithiophosphoric Acid and DI-2 Ethyl Hexyl Monothiophosphoric Acid. Structure of the Complexes in the Organic Phase.
DE87752225

  • Americium
  • Europium
  • Neodymium
  • Ligands
  • Nitric Acid
  • Partition
  • Solvent Extraction
  • Synergism
  • Thiophosphoric Acid Esters
  • Foreign technology
  • ERDA/050800
  • TIC Foreign Exchange Reports
  • 99E - Photochemistry and Radiation Chemistry
  • 99F - Physical & Theoretical Chemistry
Loading