Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
Chemical recycling of rigid-PVC by oxygen oxidation in NaOH solutions at elevated temperatures
Autore:
Yoshioka, T; Furukawa, K; Okuwaki, A;
Indirizzi:
Tohoku Univ, Grad Sch Engn, Dept Appl Chem, Aoba Ku, Sendai, Miyagi 9808579, Japan Tohoku Univ Sendai Miyagi Japan 9808579 Ku, Sendai, Miyagi 9808579, Japan
Titolo Testata:
POLYMER DEGRADATION AND STABILITY
fascicolo: 2, volume: 67, anno: 2000,
pagine: 285 - 290
SICI:
0141-3910(2000)67:2<285:CRORBO>2.0.ZU;2-Q
Fonte:
ISI
Lingua:
ENG
Soggetto:
THERMAL-DEGRADATION; POLY(VINYL CHLORIDE); DEHYDROCHLORINATION BEHAVIOR; HYDROGEN-CHLORIDE; LIQUID-PHASES; POLYVINYL-CHLORIDE); PYROLYSIS; COALS; MODEL; HCL;
Keywords:
chemical recycling; rigid-PVC; oxalic acid; benzenecarboxylic acids; base-catalyzed oxygen oxidation; dehydrochlorination; NaOH solution;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
31
Recensione:
Indirizzi per estratti:
Indirizzo: Yoshioka, T Tohoku Univ, Grad Sch Engn, Dept Appl Chem, Aoba Ku, Aramaki Aza Aoba 07, Sendai, Miyagi 9808579, Japan Tohoku Univ Aramaki Aza Aoba 07 Sendai Miyagi Japan 9808579 an
Citazione:
T. Yoshioka et al., "Chemical recycling of rigid-PVC by oxygen oxidation in NaOH solutions at elevated temperatures", POLYM DEGR, 67(2), 2000, pp. 285-290

Abstract

Oxidative degradation of rigid-PVC pellets (R-PVC) with oxygen was carriedout in 1-25 mol/kg-H2O (m) NaOH solutions, at 150-260 degrees C and Po-2 of 1-10 MPa in order to investigate the chemical recycling of PVC materials. The apparent rate of oxidative degradation of R-PVC progressed as a zero order reaction, and the apparent activation energy was 38.5 kJ mol(-1). The major products were oxalic acid, a mixture of benzenecarboxylic acids, and CO2. The tin in R-PVC was extracted completely. This paper reports the possibility of converting PVC materials into raw materials such as carboxylic acids by chemical recycling. (C) 2000 Elsevier Science Ltd. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 20/01/21 alle ore 11:20:08