Process of recovery of exhausted ionic liquids used in the extractive desulfurization of naphthas

A process for recovering ionic liquids comprising the steps of: providing a first ionic liquid mixture, the first ionic liquid having a halogen metallate anion, the mixture containing an organic solvent; adjusting the pH of the mixture to pH 7-10 by the addition of a base to form a first precipitate...

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Hauptverfasser:	PALOMEQUE SANTIAGO JORGE FROYLAN, GUZMAN LUCERO DIEGO JAVIER, MARTINEZ PALOU RAFAEL, VICTOROVNA LIKHANOVA NATALYA, FLORES OROPEZA EUGENIO ALEJANDRO
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Sprache:	eng
Schlagworte:	PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION TRANSPORTING
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creator	PALOMEQUE SANTIAGO JORGE FROYLAN GUZMAN LUCERO DIEGO JAVIER MARTINEZ PALOU RAFAEL VICTOROVNA LIKHANOVA NATALYA FLORES OROPEZA EUGENIO ALEJANDRO
description	A process for recovering ionic liquids comprising the steps of: providing a first ionic liquid mixture, the first ionic liquid having a halogen metallate anion, the mixture containing an organic solvent; adjusting the pH of the mixture to pH 7-10 by the addition of a base to form a first precipitate; separating the first precipitate from the mixture; removing the organic solvent from the first mixture to form a second precipitate and separating the second precipitate from the first mixture; acidifying the resulting mixture to pH 2-7 by the addition of an acid; and drying the mixture to obtain a second ionic liquid having a halogen anion.
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subjects	PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION TRANSPORTING
title	Process of recovery of exhausted ionic liquids used in the extractive desulfurization of naphthas
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