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Titolo:
KINETICS OF DEHYDRATION AND DESULFATION P ROCESS OF TITANIA COATED MICA
Autore:
ZHOU JH; XIAO WD; GU YF; GU HC; HU LM;
Indirizzi:
E CHINA UNIV SCI & TECHNOL,UNILAB,RES CTR CHEM REACT ENGN SHANGHAI 200237 PEOPLES R CHINA E CHINA UNIV SCI & TECHNOL,NATL ENGN RES CTR ULTRAFINE POWDER SHANGHAI PEOPLES R CHINA
Titolo Testata:
Gaodeng xuexiao huaxue xuebao
fascicolo: 3, volume: 18, anno: 1997,
pagine: 439 - 443
SICI:
0251-0790(1997)18:3<439:KODADP>2.0.ZU;2-X
Fonte:
ISI
Lingua:
CHI
Keywords:
MICA TITANIA; HYDRATED TITANIA; PROCESS OF DEHYDRATION AND DESULFATION; REACTION RATE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
9
Recensione:
Indirizzi per estratti:
Citazione:
J.H. Zhou et al., "KINETICS OF DEHYDRATION AND DESULFATION P ROCESS OF TITANIA COATED MICA", Gaodeng xuexiao huaxue xuebao, 18(3), 1997, pp. 439-443

Abstract

Based on TG curve, the Freeman-Carroll method was applied to calculate the kinetic parameters of the process of dehydration and desulfationof hydrous titanium oxide film on the titania-coated mica pearl pigments. As a result, the kinetic parameters were obtained. The dehydration period: E = 93.32 kJ/mol, n = 5.16, A = 5.31 x 10(11) min(-1); desulfation period: E = 149.25 kJ/mol, n = 5.13, A = 2.75 x 10(11) min(-1). Simultaneously, comparing with the kinetic parameters of the hydrous tiania powder obtained under the same condition indicated that both the dehydroation process and the desulfation process were more difficultin pigments than in powder.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 23/09/20 alle ore 09:35:22