Lancaster EPrints

Hydrolysis of Hydroxamic Acid Complexants in the Presence of Non-Oxidizing Metal Ions

Boxall, Colin and Andrieux, Fabrice and Edwards, Scott and Taylor, Robin J. and Woodhead, Dave (2012) Hydrolysis of Hydroxamic Acid Complexants in the Presence of Non-Oxidizing Metal Ions. Materials Research Society Symposium Proceedings, 1383. ISSN 0272-9172

[img]
Preview
PDF (Hydrolysis of Hydroxamic Acid Complexants in the Presence of Non-Oxidizing Metal Ions) - Published Version
Download (1846Kb) | Preview

    Abstract

    Simple Hydroxamic acids (XHAs) are salt free, organic compounds with affinities for hard cations such as Fe3+, Np4+, Pu4+ and have been identified as suitable reagents for the control of Pu and Np in advanced nuclear fuel reprocessing. Building upon previous work on the neptunium(IV)-formohydroxamic(FHA) acid system [1], a model that describes the hydrolysis of the acetohydroxamate moiety has been extended to include hydrolysis of bishydroxamatoneptunium(IV) complex. The model has been used to determine the rate constants for hydrolysis of mono- and bis-acetohydroxamatoneptunium(IV) at 25 °C, which were found to be 1.0×10-5 dm3 mol-1 s-1 and 5.0×10-5 dm3 mol-1 s-1, respectively.

    Item Type: Article
    Journal or Publication Title: Materials Research Society Symposium Proceedings
    Uncontrolled Keywords: HYDROXAMIC ACID COMPLEXANTS ; neptunium ; urex
    Subjects:
    Departments: Faculty of Science and Technology > Engineering
    ID Code: 52726
    Deposited By: ep_importer_pure
    Deposited On: 23 Feb 2012 14:27
    Refereed?: Yes
    Published?: Published
    Last Modified: 09 Apr 2014 23:07
    Identification Number:
    URI: http://eprints.lancs.ac.uk/id/eprint/52726

    Actions (login required)

    View Item