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\DOI{10.5802/crchim.400}
\datereceived{2025-04-18}
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\def\cdr@specialtitle@english{GDR Prom\'eth\'ee - French Research Network on \textit{Hydrometallurgical Processes for Primary and Secondary Resources}}
\def\cdr@specialtitle@french{GDR Prom\'eth\'ee - Groupement de Recherche sur les Proc\'ed\'es Hydrom\'etallurgiques pour la Gestion Int\'egr\'ee des Ressources Primaires ...}
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\dateposted{2025-04-30}
\datepublished{2025-07-18}
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\title{Guest Editors}

\alttitle{R\'{e}dacteurs en chef invit\'{e}s}

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\guesteditor{Laurent Cassayre}{fx01}
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\guesteditor{Herv\'{e} Muhr}{fx02}
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\noindent
\textbf{Laurent Cassayre} is CNRS Research Director at the
\textit{Laboratoire de G\'{e}nie Chimique} in Toulouse. He holds a PhD
in Process Engineering from the University of Toulouse (2005) and an
Habilitation to Supervise Research from the \textit{Institut National
Polytechnique de Toulouse} (2015). His areas of interest include
pyrometallurgy (high-temperature electrochemical processes) and
hydrometallurgical processes, with applications in metal recycling and
recovery. Its current scientific activities focus on the problems
associated with the calculation of thermodynamic equilibria, and the
contribution that this type of approach can make to the understanding,
implementation, and optimisation of hydrometallurgical processes. 
He has been the director of the GDR PROMETHEE since 2022.\vadjust{\vfill\eject}

\noindent
\textbf{Herv\'{e} Muhr} is CNRS Research Director at the
\textit{{Laboratoire R\'{e}actions et G\'{e}nie des Proc\'{e}d\'{e}s}}
in Nancy. He obtained his PhD in Chemical Engineering in 1993 and
an Habilitation to Supervise Research from the \textit{Institut
National Polytechnique de Lorraine} in 2000. He is a specialist in
precipitation and crystallization processes, which are major unit
operations in hydrometallurgy. His current scientific activities focus
on the recycling of Li-ion batteries and electronic cards for optimal
metal recovery. He has been the deputy director of the GDR PROMETHEE
since~2022.\looseness=1
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