Recovery of hydrogen peroxide from an aqueous solution by distillation with organic extractants
Abstract
Abstract HYDROGEN PEROXIDE IS CONVERTED FROM AN AQUEOUS SOLUTION INTO VAPOR OR LIQUID MIXTURES WITH NON AQUEOUS COMPOUNDS BY EXTRACTING AQUEOUS SOLUTIONS OF HYDROGEN PEROXIDE WITH HIGH BOILING SOLVENTS WHICH HAVE A HIGH SELECTIVITY FOR HYDROGEN PEROXIDE AND ARE RESISTANT TO HYDROGEN PEROXIDE AND WATER. A PORTION OF THE WATER ALSO EXTRACTED IS DIRECTLY DISTILLED FROM THE RESULTING EXTRACTION MIXTURE WITHOUT ADDITION OF AN ENTRAINING AGENT. SUBSEQUENTLY THE HYDROGEN PEROXIDE IS VAPORIZED IN A VACUUM FROM THE WATER POOR EXTRACT WITH ADDITION IN THE VAPOR PHSE OF THE DESIRED MIXING PARTENER WHICH BOILS LOWER THAN THE EXTRACTING AGENT WHEREUPON THE HYDROGEN PEROXIDE CONTAINING VAPORS ARE DRAWN OFF OR CONDENSED. THE HYDROGEN PEROXIDE CONTAINING VAPORS CAN BE PURIFIED BY PARTIAL CONDENSATION AND THE HIGH BOILING SOLVENT CAN BE RETURNED TO THE EXTRACTION STEP.
Inventors
- 👤 G Schreyer
- 👤 O Weiberg
- 👤 G Giesselmann
- 👤 H Monch
Bibliographic Details
Claims Analysis
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