Recovery of Terephthalic Acid by employing magnetic nanoparticles as a solid support

Ghamary, Elmira; Nikje, Mir Mohammad Alavi; Andabil, Seyedeh Leila Rahmani; Sarchami, Lida

doi:10.1590/0104-1428.2201

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Original Article • Polímeros 28 (1) • Jan-Mar 2018 • https://doi.org/10.1590/0104-1428.2201 copy

Recovery of Terephthalic Acid by employing magnetic nanoparticles as a solid support

Authorship SCIMAGO INSTITUTIONS RANKINGS

Abstract

The aim of this research work is focused on the improvement of Terephthalic acid recovery from PET wastes by using organically modified nano-Fe₃O₄@Cyanuric Chloride as the solid support. The performance of organically modified nano magnetic was examined in detail and the obtained results were compared with the unsupported reaction data. Required reaction time for complete glycolysis of the wastes, consumption of the solvent as well as catalyst decreases up 99%, 37.5% and 40% respectively. Result showed that nano-Fe ₃O₄@Cyanuric Chloride delivered good performance as solid support in depolymerizing of PET to the terephthalic acid.

Keywords:
poly (ethylene terephthalate); recycling; solid support; terephthalic acid

Entry	Fe₃O₄@Cyanoric Chloride	Time	Unreacted PET	TPA yield
Entry	(g)	(min)	(g)	%
1	0.00	101	0.00	90
2	0.02	101	0.00	95
3	0.02	50	0.00	94
4	0.02	30	0.00	90
5	0.02	20	0.00	90
6	0.02	15	0.00	92
7	0.02	10	0.00	91
8	0.02	5	0.00	90
9	0.02	2	0.00	89
10	0.02	1	0.00	87
11	0.02	0.5	0.32	54

Entry	Fe₃O₄@Cyanoric Chloride	NaOH	Unreacted PET	TPA yield
Entry	(g)	(g)	(g)	%
1	0.00	0.50	0.00	90
2	0.02	0.50	0.00	95
3	0.02	0.40	0.00	89
4	0.02	0.30	0.00	87
5	0.02	0.20	0.21	53
6	0.02	0.10	0.52	34

Entry	Fe₃O₄@Cyanoric Chloride	TPA yield
Entry	(g)	%
1	0.01	77
2	0.02	87
3	0.03	88
4	0.05	87
5	0.08	88
6	0.10	84
7	0.20	82
8	0.30	79

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[1] * drmm.alavi@gmail.com