ON THE ROLE OF SURFACE HYDROXYLS DURING THE CR/SIO2-CATALYZED POLYMERIZATION OF ETHYLENE

被引：28

作者：

JOZWIAK, WK

LANA, IGD

FIEDOROW, R

机构：

[1] Department of Chemical Engineering, University of Alberta, Edmonton

来源：

JOURNAL OF CATALYSIS | 1990年 / 121卷 / 01期

基金：

加拿大自然科学与工程研究理事会;

关键词：

D O I：

10.1016/0021-9517(90)90228-C

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The onset of polymerization of ethylene over a 0.5% chromium supported on silica catalyst was studied using a diffraction-type IR spectrophotometer. Detailed investigations emphasizing the hydroxyl region of the IR spectrum suggested the importance of silanol groups in the processes of reaction initiation, termination, and catalyst deactivation. The formation of chromium-bound hydroxyls and their role in catalyst deactivation were suggested. © 1990.

引用

收藏

页码：183 / 195

页数：13

相关论文

共 23 条

[1] INHIBITION OF SILICA-ALUMINA-CHROMIA POLYMERIZATION CATALYSTS [J].

EDEN, C ;

FEILCHEN.H ;

HAAS, Y .

JOURNAL OF CATALYSIS, 1968, 11 (03) :263-&

[2] POLYMERIZATION OF ETHYLENE ON CHROMIUM OXIDE CATALYSTS .2. INFRARED STUDIES [J].

ELEY, DD ;

ROCHESTE.CH ;

SCURRELL, MS .

PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL AND PHYSICAL SCIENCES, 1972, 329 (1579) :375-&

[3] IR INVESTIGATION OF POLYMERIZATION CENTERS OF THE PHILLIPS CATALYST [J].

GHIOTTI, G ;

GARRONE, E ;

ZECCHINA, A .

JOURNAL OF MOLECULAR CATALYSIS, 1988, 46 (1-3) :61-77

[4] HYDROGENATION OF OLEFINS AND POLYMERIZATION OF ETHENE OVER CHROMIUM-OXIDE SILICA CATALYSTS .5. INSITU INFRARED MEASUREMENTS AND INVESTIGATION OF THE POLYMER [J].

GROENEVELD, C ;

WITTGEN, PPMM ;

SWINNEN, HPM ;

WERNSEN, A ;

SCHUIT, GCA .

JOURNAL OF CATALYSIS, 1983, 83 (02) :346-361

[5] HYDROGENATION OF OLEFINS AND POLYMERIZATION OF ETHENE OVER CHROMIUM-OXIDE SILICA CATALYSTS .4. KINETICS OF THE POLYMERIZATION REACTION [J].

GROENEVELD, C ;

WITTGEN, PPMM ;

LAVRIJSEN, JPM ;

SCHUIT, GCA .

JOURNAL OF CATALYSIS, 1983, 82 (01) :77-91

[6]

Hair M.L., 1967, INFRARED SPECTROSCOP, DOI DOI 10.1002/ANGE.19680801121

[7] ETHYLENE POLYMERIZATION CATALYSIS OVER CHROMIUM OXIDE [J].

HOGAN, JP .

JOURNAL OF POLYMER SCIENCE PART A-1-POLYMER CHEMISTRY, 1970, 8 (09) :2637-&

[8]

JOZWIAK WK, 1988, 9TH P INT C CAT CALG, P1340

[9]

KARGE HG, 1980, Z PHYS CHEM, V122, P1033

[10] KINETICS AND ESR STUDIES OF ETHYLENE POLYMERIZATION ON CHROMIA-SILICA CATALYSTS [J].

KAZANSKI, VB ;

TURKEVIC.J .

JOURNAL OF CATALYSIS, 1967, 8 (03) :231-&