Effect of ZnCl 2 - and SiCl 4 -doped TiCl 4 /MgCl 2 /THF catalysts for ethylene polymerization
โ Scribed by Phiwkliang, Wanna; Jongsomjit, Bunjerd; Praserthdam, Piyasan
- Book ID
- 121842493
- Publisher
- John Wiley and Sons
- Year
- 2013
- Tongue
- English
- Weight
- 647 KB
- Volume
- 130
- Category
- Article
- ISSN
- 0021-8995
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๐ SIMILAR VOLUMES
MgCl 2 /THF/TiCl 4 (TT-0) were thermally pretreated at 80ะC for 5 min (TT-1) and 60 min (TT-2), and at 108ะC for 5 min (TT-3) and 60 min (TT-4). These thermally pretreated catalysts showed comonomer enhancement effects in the ethylene-1-hexene copolymerization, while TT-0 catalyst did not. Comonomer
The kinetics of ethylene polymerization with TiCl,/MgCl,/SiO, has been investigated in the range of temperatures between 40 and 90ยฐC 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
## Abstract Three procatalysts of the MgCl~2~/TiCl~4~ type, differing mainly in their morphological characteristics, were investigated in ethylene polymerization and ethyleneโ1โbutene copolymerization. Apparently, hydrogen has an intrinsic and general deactivating effect but it can also play an act