Effects of Various Mixed Metal Chlorides- AlCl3 in TiCl4/MgCl2/THF Catalytic System on Ethylene Polymerization | Zendy

Nittaya Sudsong | Zendy; Wanna Phiwkliang | Zendy; Bunjerd Jongsomjit | Zendy; Piyasan Praserthdam | Zendy

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Effects of Various Mixed Metal Chlorides- AlCl3 in TiCl4/MgCl2/THF Catalytic System on Ethylene Polymerization

Author(s) -

Nittaya Sudsong,

Wanna Phiwkliang,

Bunjerd Jongsomjit,

Piyasan Praserthdam

Publication year - 2015

Publication title -

asean journal of chemical engineering

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.153

H-Index - 5

eISSN - 2655-5409

pISSN - 1655-4418

DOI - 10.22146/ajche.49704

Subject(s) - catalysis , polymerization , electronegativity , chemistry , ethylene , metal , molar ratio , solvent , inorganic chemistry , polymer chemistry , organic chemistry , polymer

In this research, the modification of TiCl 4 /MgCl 2 /THF catalyst system with various metal chlorides was investigated on ethylene polymerization. Experimentally, metal chlorides (CaCl 2 , FeCl 2 and ZnCl 2 ) were simultaneously introduced different with TiCl 4 /MgCl 2 /THF catalyst. ICP analysis was used to determine the total amount of each metal in the catalyst. For polymerization reaction, TEA was used as cocatalyst and hexane was used as a medium solvent. The Al/Ti molar ratio was 140. The activity result of Ca-Al, Zn-Al and Fe-Al was 979, 1009 and 1476 kgPE/molTi.h, respectively. The coaddition of AlCl 3 and FeCl 2 in TiCl 4 /MgCl 2 /THF catalyst system exhibited the highest activity. It suggested that the co-addition of AlCl 3 and FeCl 2 has higher electronegativity (EN) and the radius of Fe 2+ is closer to Mg 2+ resulting in an increased efficiency of the THF removal. This result led to improve the catalyst performance.

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