The aging of the MgCl,/dioctyl phthalate (DOP) or ethyl benzoate (EB)/TiCl, catalyst was studied. Because of the strong complexation of DOP with the catalyst, only a small fraction of DOP was extracted by cocatalyst triethylaluminium (TEA) during aging, resulting in converting some highly isospecifi
Model for the formation of active titanium complexes on MgCl2—ethyl benzoate—TiCl4catalysts for propylene polymerization
✍ Scribed by Won-Deuk Song; Kyung-Jun Chu; Ho-Sik Chang; Son-Ki Ihm
- Publisher
- Elsevier Science
- Year
- 1993
- Weight
- 482 KB
- Volume
- 84
- Category
- Article
- ISSN
- 0304-5102
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📜 SIMILAR VOLUMES
## Abstract Experiments designed to prepare Ziegler‐Natta catalysts with controlled particle morphology are reported. Different dealcoholation processes are used on the adduct MgCl~2~ · __n__EtOH to prepare the catalysts: either thermal treatment or chemical dealcoholation employing different subst
## Abstract An insight on the influence of ethyl benzoate (EB) and diisobutyl phthalate (DIBP) as internal donors, differing in coordination nature on the structural aspects of MgCl~2~ matrix in high‐performance MgCl~2~‐supported titanium catalysts was developed using FTIR spectroscopy and WAXD stu
The effects of triethers as internal donors on the activity and stereoselectivity of MgCl 2 -supported Ziegler-Natta type catalysts in the propylene polymerization were studied. In particular, we prepared and fully characterized some procatalysts of the type d-MgCl 2 /ID/TiCl 4 , where ID are intern