title: Investigation of thermal treatment on selective separation of post consumer plastics prior to froth flotation.
abstract: Plastics have become the widely used materials because of their advantages, such as cheapness, endurance, lightness, and hygiene. However, they cause waste and soil pollution and they do not easily decompose. Many promising technologies are being investigated for separating mixed thermoplastics, but they are still uneconomical and unreliable. Depending on their surface characteristics, these plastics can be separated from each other by flotation method which is useful mineral processing technique with its low cost and simplicity. The main objective of this study is to investigate the flotation characteristics of PET and PVC and determine the effect of plasticizer reagents on efficient plastic separation. For that purpose, various parameters such as pH, plasticizer concentration, plasticizer type, conditioning temperature and thermal conditioning were investigated. As a result, PET particles were floated with 95.1% purity and 65.3% efficiency while PVC particles were obtained with 98.1% purity and 65.3% efficiency.
authors.affiliation: Istanbul Technical University, Faculty of Mines, Mineral Processing Engineering Department, 34469 Maslak, Istanbul, Turkey.
authors.forename: Ali
authors.initials: A
authors.lastname: Guney
authors.forename: M Ibrahim
authors.initials: MI
authors.lastname: Poyraz
authors.forename: Olgac
authors.initials: O
authors.lastname: Kangal
authors.forename: Firat
authors.initials: F
authors.lastname: Burat
mesh_terms: D006863:Hydrogen-Ion Concentration; D008293:Malates / Q000737:chemistry; D010968:Plasticizers / Q000737:chemistry; D010969:Plastics; D011093:Polyethylene Terephthalates / Q000737:chemistry / Q000302:isolation & purification; D011143:Polyvinyl Chloride / Q000737:chemistry / Q000302:isolation & purification; D012037:Refuse Disposal / Q000379:methods*; D013634:Tannins / Q000737:chemistry; D013696:Temperature
chemical_list: D008293:Malates; D010968:Plasticizers; D010969:Plastics; D011093:Polyethylene Terephthalates; D013634:Tannins; C030298:malic acid; D011143:Polyvinyl Chloride
keywords: PET; PVC; Plasticizer; Polymer; Thermal effect