A method of treatment of halogenous, organic waste material

A - Human Necessities – 62 – D

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A62D 3/35 (2007.01) C08F 8/12 (2006.01)

Patent

CA 2346058

Halogenous, organic waste material such as PVC is subjected to a hydrolysis treatment by suspending 1 part by weight of the waste material in comminuted state in 1-10 parts by weight of water in the presence of a base and heating this to a temperature of between 250-280°C at a pressure sufficient to maintain the water in liquid state for a period of time sufficient to convert substantially all organically bound halogen present to inorganic halides. By the treatment valuable halogen- free organic compounds are generated as decomposition products ensuring the economy of the treatment.

L'invention concerne un procédé au cours duquel les déchets organiques halogénés tels que le PVC sont soumis à un traitement d'hydrolyse consistant à suspendre 1 partie en poids de déchets fragmentés dans 1-10 partie en poids d'eau en présence d'une base et à chauffer ce mélange à une température comprise entre 250 et 280 DEG C à une pression suffisante pour maintenir l'eau à l'état liquide, pendant une période suffisamment longue pour convertir sensiblement tout l'halogène lié de manière organique en halogénures inorganiques. Par ce traitement on obtient des composés organiques non halogénés de valeur sous forme de produits de décomposition, ce qui présente un intérêt économique.

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