PURIFICATION OF ACETIC ACID FROM WOOD ACETYLATION PROCESS USING EXTRACTION

PURIFICATION OF ACETIC ACID FROM WOOD ACETYLATION PROCESS USING EXTRACTION

THERE IS SHOWN A METHOD OF PURIFYING GLACIAL ACETIC ACID CONTAINING TERPENE AND TERPENOID IMPURITIES. SUBSTANTIALLY DRY ACETIC ACID CONTAINING TERPENE AND TERPENOID IMPURITIES IS COMBINED WITH WATER AND A SUITABLE ORGANIC SOLVENT, WHICH IS SUBSTANTIALLY IMMISCIBLE WITH ACETIC ACID AND WATER, TO FORM...

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Bibliographische Detailangaben
Hauptverfasser: WARNER, R. JAY, MEILCHEN, MELCHIOR A
Format: Patent
Sprache:eng
Schlagworte:
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW ORSIMILAR MATERIALS
CHEMISTRY
METALLURGY
NAILING OR STAPLING MACHINES IN GENERAL
ORGANIC CHEMISTRY
PERFORMING OPERATIONS
PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FORIMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILARMATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITHPERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR
TRANSPORTING
WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL
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Zusammenfassung:THERE IS SHOWN A METHOD OF PURIFYING GLACIAL ACETIC ACID CONTAINING TERPENE AND TERPENOID IMPURITIES. SUBSTANTIALLY DRY ACETIC ACID CONTAINING TERPENE AND TERPENOID IMPURITIES IS COMBINED WITH WATER AND A SUITABLE ORGANIC SOLVENT, WHICH IS SUBSTANTIALLY IMMISCIBLE WITH ACETIC ACID AND WATER, TO FORM A SEPARATING COMPOSITE EXTRACTION MEDIUM HAVING A WEIGHT RATIO OF ACETIC ACID : WATER OF AT LEAST 1:1. THE COMPONENTS ARE SEPARATED INTO AN ORGANIC PHASE AND AN AQUEOUS ACID PHASE, WITH THE TERPENE AND TERPENOID IMPURITIES CONCENTRATED IN THE ORGANIC PHASE, AND WITH THE AQUEOUS ACID PHASE PURIFIED OF TERPENE AND TERPENOID IMPURITIES.THE PURIFIED AQUEOUS ACID PHASE IS RECOVERED, AND THE PURIFIED ACETIC ACID IS DRIED.