With the collaboration of Iran Polymer Society
Reaction engineering
Polymerization of propylene in a minireactor: Effect of polymerization conditions on particle morphology

Mehrsa Emami; Mahmoud Parvazinia; Hossein Abedini

Volume 5, Issue 2 , June 2018, , Pages 111-123

https://doi.org/10.22063/poj.2018.2032.1107

Abstract
  Gas phase polymerization of propylene was carried out in a semi-batch minireactor using a commercially supported Ziegler–Natta (ZN) catalyst. The influence of variables including monomer partial pressure, external electron donor, reaction temperature and time on the particle morphology and size ...  Read More

Catalysis
Ziegler-Natta catalysts for propylene polymerization – Interaction of an external donor with the catalyst

Valentina Nikolaevna Panchenko; Ludmila Viktorovna Vorontsova; Vladimir Aleksandrovich Zakharov

Volume 4, Issue 1 , January 2017, , Pages 87-97

https://doi.org/10.22063/poj.2016.1385

Abstract
  The interaction of the external donor (propyltrimethoxysilane - PTMS) with titanium-magnesium catalysts (TMCs) containing dibutylphthalate (DBP) as internal donor, which were prepared in different ways, was studied by chemical analysis and infrared diffuse reflectance spectroscopy (DRIFTS). The chemical ...  Read More

Catalysis
Effect of the synthesis conditions of titanium-magnesium catalysts on the composition, structure and performance in propylene polymerization

Natalya N. Chumachenko; Vladimir A. Zakharov; Sergey A. Sergeev; Svetlana V. Cherepanova

Volume 4, Issue 1 , January 2017, , Pages 111-122

https://doi.org/10.22063/poj.2016.1399

Abstract
  Supported catalysts synthesized via the interaction of Mg(OEt)2 with TiCl4 in the presence or absence of an internal stereoregulating donor (di-n-butyl phthalate), with different solvents (chlorobenzene, n-undecane, n-heptane) at different titanation temperatures have been studied by a set of physicochemical ...  Read More

Reaction engineering
Reaction dynamics during the testing of polymerization catalyst

Nickolay Ostrovskii; Ladislav Fekete

Volume 2, Issue 2 , June 2015, , Pages 89-97

https://doi.org/10.22063/poj.2015.1156

Abstract
  The olefins polymerization process in a slurry reactor is discussed. The reaction rate dynamics was analyzed and the contributions of feed flow, gas-liquid mass transfer, polymerization reaction, and catalyst deactivation were estimated. The propylene solubility in a solvent mixture “heptane” ...  Read More