METHOD FOR PURIFYING AN EXTRACTION LIQUID

This invention relates to a method for the purification of a depleted organic extraction liquid from a production process, said method comprising the following steps in the given sequence: a. intensive mixing the depleted organic extraction liquid with an amine-containing liquid in a first liquid-li...

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Bibliographic Details
Main Authors Almhofer, Lukas, Bischof, Robert, Schlackl, Klaus, Madera, Martin
Format Patent
LanguageEnglish
French
German
Published 21.12.2022
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
TRANSPORTING
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Summary:This invention relates to a method for the purification of a depleted organic extraction liquid from a production process, said method comprising the following steps in the given sequence: a. intensive mixing the depleted organic extraction liquid with an amine-containing liquid in a first liquid-liquid extraction step, b. phase separation of the two liquids of step a., c. washing of the organic extraction liquid phase of step b. with an aqueous liquid in a second liquid-liquid extraction step, d. phase separation of the two liquids of step c., and e. recycling of the purified organic extraction liquid into the production process, wherein the enriched amine-containing phase of step b. and the enriched aqueous phase of step d. are purified and recycled into steps a. resp. step c..
Bibliography:Application Number: EP20210180315