N, N′-Dicyclohexyl-N″-Isotridecylguanidine as Suppressor for the Next Generation Caustic Side Solvent Extraction (NG-CSSX) Process

Nathan C. Duncan; Benjamin D. Roach; Neil J. Williams; Peter V. Bonnesen; Arbin Rajbanshi; Bruce A. Moyer

doi:10.1080/01496395.2012.697517

N, N′-Dicyclohexyl-N″-Isotridecylguanidine as Suppressor for the Next Generation Caustic Side Solvent Extraction (NG-CSSX) Process

Nathan C. Duncan, Benjamin D. Roach, Neil J. Williams, Peter V. Bonnesen, Arbin Rajbanshi, Bruce A. Moyer

Research output: Contribution to journal › Article › peer-review

17 Scopus citations

Abstract

The purity, concentration, and source of the N,N′-dicyclohexyl-N″-isotridecylguanidine (DCiTG) suppressor (guanidine) used in the NG-CSSX process were found to influence solvent performance. As the starting isotridecanol used in the preparation of DCiTG is comprised of a mixture of branched-chain aliphatic alcohols, varying in composition with manufacturer, the resulting DCiTG itself is a mixture. Thus, it is necessary to address how the solvent performance will be affected by the different preparations of the DCiTG solvent component. In this study, four preparations of DCiTG from three sources were analyzed and evaluated for purity and performance, both in the absence and presence of a deliberately added anionic surfactant impurity.

Original language	English
Pages (from-to)	2074-2087
Number of pages	14
Journal	Separation Science and Technology (Philadelphia)
Volume	47
Issue number	14-15
DOIs	https://doi.org/10.1080/01496395.2012.697517
State	Published - Jan 2012

Funding

This research was sponsored by the Office of Technology Innovation and Development, Office of Environmental Management, U.S. Department of Energy. The complimentary sample of LIX 79 active ingredient supplied by Cognis and the complimentary samples of DCiTG from Marshallton are gratefully acknowledged. The authors are grateful to F. V. Sloop, Jr. for review of this paper and for helpful suggestions.

Keywords

guanidine
nuclear waste
solvent extraction

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10.1080/01496395.2012.697517

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title = "N, N′-Dicyclohexyl-N″-Isotridecylguanidine as Suppressor for the Next Generation Caustic Side Solvent Extraction (NG-CSSX) Process",

abstract = "The purity, concentration, and source of the N,N′-dicyclohexyl-N″-isotridecylguanidine (DCiTG) suppressor (guanidine) used in the NG-CSSX process were found to influence solvent performance. As the starting isotridecanol used in the preparation of DCiTG is comprised of a mixture of branched-chain aliphatic alcohols, varying in composition with manufacturer, the resulting DCiTG itself is a mixture. Thus, it is necessary to address how the solvent performance will be affected by the different preparations of the DCiTG solvent component. In this study, four preparations of DCiTG from three sources were analyzed and evaluated for purity and performance, both in the absence and presence of a deliberately added anionic surfactant impurity.",

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AU - Williams, Neil J.

AU - Bonnesen, Peter V.

AU - Rajbanshi, Arbin

AU - Moyer, Bruce A.

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N, N′-Dicyclohexyl-N″-Isotridecylguanidine as Suppressor for the Next Generation Caustic Side Solvent Extraction (NG-CSSX) Process

Abstract

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Keywords

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