𝔖 Bobbio Scriptorium
✦   LIBER   ✦

EXAFS study of supported TiCl4/MgCl2 catalyst

✍ Scribed by Alexandr G. Potapov; Vladimir V. Kriventsov; Dmitrii I. Kochubey; Gennadii D. Bukatov; Vladimir A. Zakharov

Publisher
John Wiley and Sons
Year
1997
Tongue
English
Weight
383 KB
Volume
198
Category
Article
ISSN
1022-1352

No coin nor oath required. For personal study only.

✦ Synopsis

Extended X-ray absorption fine structure analysis (EXAFS) has been used to study supported TiCl,/MgCI, catalysts containing 1.8 wt.-% Ti. Adsorbed TiCI, was found to exist on the MgC12 surface as a dimeric complex. The possible structures of dimeric TiC14 complexes on the (100) face of MgCl, are discussed.

πŸ“œ SIMILAR VOLUMES

Propene polymerization with MgCl2-suppor
Propene polymerization with MgCl2-supported TiCl4/dioctylphthalate catalyst. I. Catalyst behavior
✍ Chun B. Yang; Cheng C. Hsu πŸ“‚ Article πŸ“… 1995 πŸ› John Wiley and Sons 🌐 English βš– 814 KB

Slurry polymerization of propene using MgC1,-supported TiClJdioctylphthalate catalysts were carried out in a semibatch reactor at a constant pressure to examine the effects of polymerization conditions on catalyst activity and polymer isotacticity. The catalysts were prepared at 80, 90, and 105"C, w

Kinetic study of ethylene polymerization
Kinetic study of ethylene polymerization by highly active silica supported TiCL4/MgCl2 catalysts
✍ Il Kim; Jae Ha Kim; Seong Ihl Woo πŸ“‚ Article πŸ“… 1990 πŸ› John Wiley and Sons 🌐 English βš– 846 KB

The kinetics of ethylene polymerization with TiCl,/MgCl,/SiO, has been investigated in the range of temperatures between 40 and 90Β°C and in the range of ethylene pressures between 4 and 12.4 kg/cm2. The role of MgCI, was discussed from the dependence of the Mg/Ti ratio on the catalytic activity. The

Morphological study of spherical MgCl2.n
Morphological study of spherical MgCl2.nEtOH supported TiCl4 Ziegler-Natta catalyst for polymerization of ethylene
✍ R. Jamjah; G. H. Zohuri; J. Vaezi; S. Ahmadjo; M. Nekomanesh; M. Pouryari πŸ“‚ Article πŸ“… 2006 πŸ› John Wiley and Sons 🌐 English βš– 602 KB

## Abstract Spherical MgCl~2~Β·nEtOH was prepared by adducting ethanol to MgCl~2~ using melt quenching method. Effect of molar ratio of [EtOH]/[MgCl~2~] = 2.8–3.05 on the morphology and particle size of the MgCl~2~Β·nEtOH were studied. The best adduct of spherical morphology was obtained when 2.9 mol

Polymerization of olefins with the TiCl4
Polymerization of olefins with the TiCl4/SiO2 catalyst system modified with MgCl2
✍ Luiz Claudio de Santa Maria; Kazuo Soga; Takeshi Shiono πŸ“‚ Article πŸ“… 1994 πŸ› John Wiley and Sons 🌐 English βš– 402 KB

## Abstract MgCl~2~/TiCl~4~/SiO~2~ catalysts were prepared by treating TiCl~4~/SiO~2~ with MgCl~2~ Β· 2THF (THF: tetrahydrofuran) at different Mg/Ti ratios. The catalysts were analysed by X‐ray, electron spin resonance (ESR), atomic absorption spectrometry to determine the crystal structure, oxidati