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DEPOLYMERIZATION OF PET AND OTHER PLASTIC WASTES: Solid waste managment (Degradation/Recycling of Plastic Waste) - Couverture souple

Abbas, Zainab

 
9783639303759: DEPOLYMERIZATION OF PET AND OTHER PLASTIC WASTES: Solid waste managment (Degradation/Recycling of Plastic Waste)
Couverture souple
ISBN 10 : 363930375X ISBN 13 : 9783639303759
Editeur : VDM Verlag Dr. Müller, 2010

Synopsis

A comparative study of hydrolysis of PET waste and other plastic waste ( compact disc. Polyethelene, polystyrene) has been carried out under various reaction conditions. PET was hydrolyzed with sodium hydroxide in different solvents at reflux as well as by fusion in solventless conditions at atmospheric pressure. Best results were obtained when PET chips were heated to dryness with sodium hydroxide in minimum amount of water. A 98% yield of terephthalic acid was obtained in ten minutes. Hydrolysis with aqueous ammonia was not promising. Acid hydrolysis with nitric acid also provided 97% yield of the terephthalic acid. The basic hydrolysis of the PET waste (in a minimum amount of water) is being recommended as preferred method for the formation of terephthalic acid. In another study compact disc, were also recycled by fusion with sodium hydroxide to get bisphenol-A. 60 % yield of bisphenol A was obtained. Polyethylene and polystyrene wastes were recycled by acid hydrolysis and distillation processes.

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Présentation de l'éditeur

A comparative study of hydrolysis of PET waste and other plastic waste ( compact disc. Polyethelene, polystyrene) has been carried out under various reaction conditions. PET was hydrolyzed with sodium hydroxide in different solvents at reflux as well as by fusion in solventless conditions at atmospheric pressure. Best results were obtained when PET chips were heated to dryness with sodium hydroxide in minimum amount of water. A 98% yield of terephthalic acid was obtained in ten minutes. Hydrolysis with aqueous ammonia was not promising. Acid hydrolysis with nitric acid also provided 97% yield of the terephthalic acid. The basic hydrolysis of the PET waste (in a minimum amount of water) is being recommended as preferred method for the formation of terephthalic acid. In another study compact disc, were also recycled by fusion with sodium hydroxide to get bisphenol-A. 60 % yield of bisphenol A was obtained. Polyethylene and polystyrene wastes were recycled by acid hydrolysis and distillation processes.

Biographie de l'auteur

Syeda Zainab Abbas Soharwardi Msc Chemistry, Punjab University, M.phil Chemistry, University of Engineering and Technology, Cheif Chemist (Lahore development Authority-Water & Sanitation Agency Lahore. Pakistan.

Les informations fournies dans la section « A propos du livre » peuvent faire référence à une autre édition de ce titre.

Éditeur
VDM Verlag Dr. Müller
Date d'édition
2010
Langue
anglais
ISBN 10 
363930375X
ISBN 13 
9783639303759
Reliure
Broché
Nombre de pages
88
Coordonnées du fabricant
non disponible
Personne responsable
non disponible