PROCESSO PARA PURIFICACAO DE PRODUTOS DE ADICAO DE OXIDO DE ALQUILENO

In the novel process for the purification of an alkylene oxide adduct which has been prepared using halogen-containing metal catalysts and contains halogen-containing compounds and metals as impurities, the alkylene oxide adduct to be purified is treated with an excess of the alkali metal compound,...

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Bibliographische Detailangaben
Hauptverfasser:	IGNAZ WIMMER, SIEGFRIED BILLENSTEIN
Format:	Patent
Sprache:	por
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS APPARATUS THEREFOR CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COMPOSITIONS BASED THEREON GENERAL METHODS OF ORGANIC CHEMISTRY MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC CHEMISTRY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR PREPARATION OR CHEMICAL WORKING-UP THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	In the novel process for the purification of an alkylene oxide adduct which has been prepared using halogen-containing metal catalysts and contains halogen-containing compounds and metals as impurities, the alkylene oxide adduct to be purified is treated with an excess of the alkali metal compound, and the alkaline mixture obtained is brought to a pH of not more than 7 using an acid, with the proviso that the amount of water present in the resulting product mixture is at least 0.1% by weight, relative to the weight of the product. This product mixture is freed from water and other solvents, as a result of which the salts insoluble in the alkylene oxide adduct precipitate in the form of coarse crystals and can be easily separated off to give the desired pure alkylene oxide adduct.