Chemical Recycling of Poly(ethylene terephthalate). 2. Preparation of Terephthalohydroxamic Acid and Terephthalohydrazide

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 hydroxy...

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Bibliographic Details
Published inIndustrial & engineering chemistry research Vol. 41; no. 16; pp. 3993 - 3998
Main Authors Yamaye, Makoto, Hashime, Toshiki, Yamamoto, Koji, Kosugi, Yoshio, Cho, Namiko, Ichiki, Tomoyuki, Kito, Taketoshi
Format Journal Article
LanguageEnglish
Published Washington, DC American Chemical Society 07.08.2002
Subjects
Applied sciences
Chemical industry and chemicals
Exact sciences and technology
Industrial chemicals
Organic industry
Other wastes and particular components of wastes
Pollution
Polymer industry, paints, wood
Technology of polymers
Waste treatment
Wastes
Depolymerization
Ethylene terephthalate polymer
Scrap polymer
Aminolysis
Chemical treatment
Waste treatment
Upgrading
Waste reuse
Glycolysis
Raw materials
Chemical synthesis
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Summary: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.
Bibliography:ark:/67375/TPS-Q2NB0SMB-N
istex:9F8D271316D3E4BBDE945D34DE0EB86CE8A2EE57
ISSN:0888-5885
1520-5045
DOI:10.1021/ie010894b