Surface micro-alcoholysis treatment : a novel approach towards froth flotation based separation for binary mixtures of polyethylene terephthalate and polyvinyl chloride

It is known that selective separation is the prerequisite of recycling pathways for waste plastics, which brings the potential economic and environmental benefits for cleaner production. A novel approach, surface micro-alcoholysis treatment (SMAT), was proposed for improvement of froth flotation tow...

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Main Authors:	Zhao, Yue, Mishra, Puranjan, Han, Fengrong, Liu, Xinni, Shen, Zhou
Format:	Article
Language:	English
Published:	Elsevier 2019
Subjects:	TP Chemical technology TS Manufactures
Online Access:	http://umpir.ump.edu.my/id/eprint/25425/ http://umpir.ump.edu.my/id/eprint/25425/ http://umpir.ump.edu.my/id/eprint/25425/ http://umpir.ump.edu.my/id/eprint/25425/1/Surface%20micro-alcoholysis%20treatment%20_%20a%20novel%20approach%20towards%20froth%20.pdf

id	ump-25425
recordtype	eprints
spelling	ump-254252019-10-15T03:42:03Z http://umpir.ump.edu.my/id/eprint/25425/ Surface micro-alcoholysis treatment : a novel approach towards froth flotation based separation for binary mixtures of polyethylene terephthalate and polyvinyl chloride Zhao, Yue Mishra, Puranjan Han, Fengrong Liu, Xinni Shen, Zhou TP Chemical technology TS Manufactures It is known that selective separation is the prerequisite of recycling pathways for waste plastics, which brings the potential economic and environmental benefits for cleaner production. A novel approach, surface micro-alcoholysis treatment (SMAT), was proposed for improvement of froth flotation towards the separation of plastics. By means of the SMAT, binary mixtures of polyethylene terephthalate (PET) and polyvinyl chloride (PVC) were selective modified to achieve effective separation. The mechanism of SMAT was examined by multiple characterization tests, response surface methodology was employed for its statistical optimization and simulation of pilot plant was first applied. The results suggested that selective wetting could be achieved through SMAT. PET surface was partially replaced by hydrophilic oligomers after ester exchange reaction, leading to the final flotation separation. Based on Plackett-Bueman design, zinc acetate concentration, temperature and operating time were identified as the significant factors controlled in SMAT. The maximum validation separation purity of PET could even reach 99.25% under the optimal condition predicated by Box-Behnken design. Such condition was performed in detail as the mass volume ratio of 1:5 (poly mixtures: 2-ethylhexanol), 0.3 wt% addition of zinc acetate, temperature of 346.5 K, stirring intensity of 100 rpm and operating time of 84.13 min. The PET purity was verified to be steady around 95% in simulation of pilot plant. The proposed technology is efficient, reliable in operation, widespread of application and potential of industrialization. Elsevier 2019-06-04 Article PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/25425/1/Surface%20micro-alcoholysis%20treatment%20_%20a%20novel%20approach%20towards%20froth%20.pdf Zhao, Yue and Mishra, Puranjan and Han, Fengrong and Liu, Xinni and Shen, Zhou (2019) Surface micro-alcoholysis treatment : a novel approach towards froth flotation based separation for binary mixtures of polyethylene terephthalate and polyvinyl chloride. Journal of Cleaner Production, 232. pp. 848-857. ISSN 0959-6526 (print), 1879-1786 (online) https://doi.org/10.1016/j.jclepro.2019.06.031 https://doi.org/10.1016/j.jclepro.2019.06.031
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	TP Chemical technology TS Manufactures
spellingShingle	TP Chemical technology TS Manufactures Zhao, Yue Mishra, Puranjan Han, Fengrong Liu, Xinni Shen, Zhou Surface micro-alcoholysis treatment : a novel approach towards froth flotation based separation for binary mixtures of polyethylene terephthalate and polyvinyl chloride
description	It is known that selective separation is the prerequisite of recycling pathways for waste plastics, which brings the potential economic and environmental benefits for cleaner production. A novel approach, surface micro-alcoholysis treatment (SMAT), was proposed for improvement of froth flotation towards the separation of plastics. By means of the SMAT, binary mixtures of polyethylene terephthalate (PET) and polyvinyl chloride (PVC) were selective modified to achieve effective separation. The mechanism of SMAT was examined by multiple characterization tests, response surface methodology was employed for its statistical optimization and simulation of pilot plant was first applied. The results suggested that selective wetting could be achieved through SMAT. PET surface was partially replaced by hydrophilic oligomers after ester exchange reaction, leading to the final flotation separation. Based on Plackett-Bueman design, zinc acetate concentration, temperature and operating time were identified as the significant factors controlled in SMAT. The maximum validation separation purity of PET could even reach 99.25% under the optimal condition predicated by Box-Behnken design. Such condition was performed in detail as the mass volume ratio of 1:5 (poly mixtures: 2-ethylhexanol), 0.3 wt% addition of zinc acetate, temperature of 346.5 K, stirring intensity of 100 rpm and operating time of 84.13 min. The PET purity was verified to be steady around 95% in simulation of pilot plant. The proposed technology is efficient, reliable in operation, widespread of application and potential of industrialization.
format	Article
author	Zhao, Yue Mishra, Puranjan Han, Fengrong Liu, Xinni Shen, Zhou
author_facet	Zhao, Yue Mishra, Puranjan Han, Fengrong Liu, Xinni Shen, Zhou
author_sort	Zhao, Yue
title	Surface micro-alcoholysis treatment : a novel approach towards froth flotation based separation for binary mixtures of polyethylene terephthalate and polyvinyl chloride
title_short	Surface micro-alcoholysis treatment : a novel approach towards froth flotation based separation for binary mixtures of polyethylene terephthalate and polyvinyl chloride
title_full	Surface micro-alcoholysis treatment : a novel approach towards froth flotation based separation for binary mixtures of polyethylene terephthalate and polyvinyl chloride
title_fullStr	Surface micro-alcoholysis treatment : a novel approach towards froth flotation based separation for binary mixtures of polyethylene terephthalate and polyvinyl chloride
title_full_unstemmed	Surface micro-alcoholysis treatment : a novel approach towards froth flotation based separation for binary mixtures of polyethylene terephthalate and polyvinyl chloride
title_sort	surface micro-alcoholysis treatment : a novel approach towards froth flotation based separation for binary mixtures of polyethylene terephthalate and polyvinyl chloride
publisher	Elsevier
publishDate	2019
url	http://umpir.ump.edu.my/id/eprint/25425/ http://umpir.ump.edu.my/id/eprint/25425/ http://umpir.ump.edu.my/id/eprint/25425/ http://umpir.ump.edu.my/id/eprint/25425/1/Surface%20micro-alcoholysis%20treatment%20_%20a%20novel%20approach%20towards%20froth%20.pdf
first_indexed	2023-09-18T22:39:02Z
last_indexed	2023-09-18T22:39:02Z
_version_	1777416790181150720

Surface micro-alcoholysis treatment : a novel approach towards froth flotation based separation for binary mixtures of polyethylene terephthalate and polyvinyl chloride

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