Constructing spherical Ziegler-Natta catalyst through an emulsion process for ethylene polymerization

2019 ◽  
Author(s):  
Zhaoliang Xing ◽  
Chong Zhang ◽  
He Huang ◽  
Hui Liu ◽  
Xiangyu Zhang ◽  
...  
Keyword(s):  
Ethylene Polymerization ◽  
Natta Catalyst ◽  
Emulsion Process ◽  
Ziegler Natta Catalyst

Preparation of Octadecylamine-Graphene/MgCl2-Supported Ziegler-Natta Catalyst and Its Application in Ethylene Polymerization

2018 ◽  
Vol 18 (4) ◽  
pp. 2643-2649
Author(s):  
Hao Zhang ◽  
Jing-Sheng Liu ◽  
He-Xin Zhang ◽  
Eun-Bin Ko ◽  
Jae-Hyeong Park ◽  
...  
Keyword(s):  
Ethylene Polymerization ◽  
Natta Catalyst ◽  
Ziegler Natta Catalyst

Ethylene polymerization on polymer supported Ziegler-Natta catalyst

2012 ◽  
Vol 19 (6) ◽  
Author(s):  
Amarjyoti Kalita ◽  
Monalisha Boruah ◽  
Dhaneswar Das ◽  
Swapan K. Dolui
Keyword(s):  
Ethylene Polymerization ◽  
Natta Catalyst ◽  
Polymer Supported ◽  
Ziegler Natta Catalyst

Observation on different reducing power of cocatalysts on the Ziegler-Natta catalyst containing alkoxide species for ethylene polymerization

2014 ◽  
Vol 131 (20) ◽  
pp. n/a-n/a ◽  
Author(s):  
Goond Hongmanee ◽  
Saovalak Sripothongnak ◽  
Bunjerd Jongsomjit ◽  
Piyasan Praserthdam
Keyword(s):  
Ethylene Polymerization ◽  
Reducing Power ◽  
Natta Catalyst ◽  
Ziegler Natta Catalyst

scholarly journals Modeling of Ethylene Polymerization with Ziegler-Natta Catalyst in a Bubbling Fluidized Bed Reactor

2021 ◽  
Author(s):  
Neda Felorzabihi
Keyword(s):  
Molecular Weight ◽  
Kinetic Model ◽  
Fluidized Bed ◽  
Ethylene Polymerization ◽  
Fluidized Bed Reactor ◽  
Polymerization Reaction ◽  
Solid Catalyst ◽  
Gas Temperature ◽  
Natta Catalyst ◽  
Ziegler Natta Catalyst

In the present study, a new dynamic fluidized bed reactor (FBR) model is developed to account for the effect of bubble growth in the bed height on the dynamic behaviour of the reactor and the molecular properties of the polymer product. The model takes into account the existence of solid catalyst in both phases and consequently, the occurrence of polymerization reaction in both bubble and emulsion phases. A dynamic two-phase model is employed for predicting the key hydrodynamic parameters of the bed. A comprehensive kinetic model for ethylene polymerization in the presence of multiple-site Ziegler-Natta catalyst is considered to describe the number and molecular weight averages and molecular weight distribution of polymer in the FBR. The hydrodynamic model and the kinetic model have been coupled and solved simultaneously to simulate the performance of the fluidized bed reactor. The study incorporates the effects of the most important reactor parameters such as superficial gas velocity, mean particle size, inlet gas temperature, bubble size, recycle stream and chain transfer agent on the steady-state behaviour of the FBR. The proposed dynamic model is capable of predicting both the performance of the reactor and the polymer physiochemical properties.

scholarly journals High activity and good hydrogen response silica-supported Ziegler-Natta catalyst for ethylene polymerization

2012 ◽  
Vol 30 (4) ◽  
pp. 561-567 ◽  
Author(s):  
Tao Jiang ◽  
Li-na Zhao ◽  
Ming-jian Luo ◽  
Hong-xia Chen ◽  
Guo-liang Mao ◽  
...  
Keyword(s):  
High Activity ◽  
Ethylene Polymerization ◽  
Natta Catalyst ◽  
Hydrogen Response ◽  
Ziegler Natta Catalyst
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