4.6 Article

Chemical recycling of poly(ethylene terephthalate). 2. Preparation of terephthalohydroxamic acid and terephthalohydrazide

Journal

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
Volume 41, Issue 16, Pages 3993-3998

Publisher

AMER CHEMICAL SOC
DOI: 10.1021/ie010894b

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A convenient one-pot-two-step process for chemical recycling of waste PET to produce terephthalohydroxamic acid (TPHA) and terephthalohydrazide (TPHD) was proposed. Decomposition of PET pellets to the corresponding oligomeric mixture in boiling ethylene glycol, followed by its treatment with hydroxylamine and hydrazine at room temperature in 1 h, produced >90% overall yields of TPHA and TPHD, respectively.

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