DOI > 10.5291/ILL-DATA.9-10-1637

This proposal is publicly available since 01/24/2025

Title

Understanding of extraction mechanisms of uranium by tertiary amines in sulfuric environment

Abstract

Amine Extraction (AMEX) process uses tertiary amines as selective extracting agent, which enables the selective extraction of uranyl cations from sulfuric acid leach liquors. Despites its extensive application, the AMEX process is still facing several problems. In this context, this project has the objective to test different tertiary amines molecules, with alkyl chains of different lengths or branching. Coupled SAXS and SANS measurements are necessary as they will provide us the core and aggregates radius of the formed aggregates. SANS measurements will indeed provide a complementary contrast of the aggregates, and allow performing a simultaneous fit of SAXS and of SANS, which is necessary to recover the exact microstructure of the reverse micellar aggregates.

Experimental Report

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Data Citation

The recommended format for citing this dataset in a research publication is in the following format:

Dourdain; BEN GHOZI BOUVRANDE Justine; DEME Bruno and LU Zijun. (2020). Understanding of extraction mechanisms of uranium by tertiary amines in sulfuric environment. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.9-10-1637

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Metadata

Experiment Parameters

  • Environment temperature

    20-25

  • Experiment energy

    4.5 Å

  • Experiment moment

    0.02-0.6 Å-1

  • Experiment res energy

    0.01

Sample Parameters

  • Formula

    • Tridecylamine, 5% 1-octanol, natural uranium, deuterated dodecane
    • Triisooctylamine, 5% deuterated 1-octanol, natural uranium, deuterated dodecane
    • Trihexylamine, 5% deuterated 1-octanol, natural uranium, deuterated dodecane
    • Tridecylamine, 5% deuterated 1-octanol, natural uranium, deuterated dodecane
    • Trioctylamine, 5% deuterated 1-octanol, natural uranium, deuterated dodecane
    • Trinonylamine, 5% 1-octanol, natural uranium, deuterated dodecane
    • Triisooctylamine, 5% deuterated 1-octanol
    • Triheptylamine, 5% 1-octanol, natural uranium, deuterated dodecane
    • Triheptylamine, 5% deuterated 1-octanol, natural uranium, deuterated dodecane
    • Trioctylamine, 5% 1-octanol, natural uranium, deuterated dodecane
    • Trinonylamine, 5% deuterated 1-octanol, natural uranium, deuterated dodecane
    • Tris(2-ethylhexyl)amine, 5% 1-octanol, natural uranium, deuterated dodecane
    • Tris(2-ethylhexyl)amine, 5% deuterated 1-octanol, natural uranium, deuterated dodecane

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