Verfahren zur Gewinnung von Terephthalsäure und Äthylenglykol, insbesondere aus Polyäthylenterephthalat-Abfällen und Vorrichtung zur Durchführung des Verfahrens

摘要

The subject of the invention is the method of obtaining of terephtalic acid and ethylene glycol, particularly from poly/ethyleneterephtalate/wastes comprising a hydrolytic decomposition of polyester with an aqueous solution of alkali metal or ammonium carbonate at the increased temperature and under the increased pressure, oxidation and neutralisation of a reaction mixture, separation of the product phases and purification of ethylene glycol by distillation and the plant for realisation of this method.