Results 91 to 100 of about 2,167 (208)

Control of a Fluidized Bed Polyethylene Reactor [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2008
In present paper, dynamic behavior and control of a fluidized bed reactor for polyethylene production has been considered. A double active sites model for Ziegler-Natta catalysts is used for simulation of polymerization reaction. Hydrodynamic behavior of
Omid Vahidi   +2 more
doaj  

Influence of the Ethanol Content of Adduct on the Comonomer Incorporation of Related Ziegler-Natta Catalysts in Propylene (Co)polymerizations. [PDF]

open access: yesPolymers (Basel), 2023
Mehdizadeh M   +10 more
europepmc   +1 more source

Deuterium Isotope Effects as Evidence for α-Agostic Assistance in Ziegler-Natta Catalysts. Design, Synthesis, and Reactivity of a New Class of Highly Syndiospecific Ziegler-Natta Polymerization Catalysts [PDF]

open access: yes, 1997
By applying the concept of "isotopic perturbation of stereochemistry" to a number of Group III metallocene catalysts, further evidence for an α-agostic interaction in the chain propagation step of Ziegler-Natta polymerization has been obtained.
Herzog, Timothy Allan
core   +1 more source

Patent Literature on Catalysts for Olefin Polymerization: [I] Ziegler-Natta Catalysts

open access: yes, 1999
286-292Patents can make or break profits resulting from an invention, depending upon an organization’s capability to protect its intellectual property rights from litigation by rivals.
Kulshreshtha, Anand Kumar   +1 more
core  

Uma revisão sobre polimerização de olefinas usando catalisadores Ziegler-Natta heterogêneos A survey on olefins polymerization using heterogeneous Ziegler-Natta catalysts

open access: yesPolímeros, 2011
A produção em larga escala de materiais poliméricos de elevado interesse industrial, provenientes da polimerização estereoespecífica de olefinas, tornou-se possível depois do advento dos catalisadores Ziegler-Natta.
Fabricio Machado, José Carlos Pinto
doaj  

The activation of MgCl2-supported ziegler-natta catalysts—II

open access: yes, 1984
The properties have been examined for Ziegler-Natta catalysts comprising TiCl4 (Ti contents 2.0, 3.4 and 4.2%) supported on MgCl2 activated by dry ball-milling up to 250 hr.
G. Baruzzi   +5 more
core   +1 more source

MgCl2-Supported Ziegler-Natta Catalysts; An NMR Perspective [PDF]

open access: yes, 2018
Contains fulltext : 196533.pdf (Publisher’s version ) (Open Access)Ziegler-Natta catalysts (ZNCs) for the production of isotactic polypropylene are one of the most important industrial catalysts, yet they are still not properly ...
Blaakmeer, E.S.
core   +1 more source

Polimerização 1,4-cis de butadieno com sistemas catalíticos Ziegler-Natta à base de neodímio

open access: yesQuímica Nova, 2004
Nowadays the catalyst systems based on neodymium are the ones most used in the high cis polybutadiene production. These systems contain a neodymium compound (catalyst), an alkylaluminium compound (cocatalyst) and a halogen compound (halogenating agent ...
Mello Ivana L.   +5 more
doaj  

New Insight into Titanium-Magnesium Ziegler-Natta Catalysts Using Photoluminescence Spectroscopy. [PDF]

open access: yesAppl Spectrosc, 2020
Panchenko VN   +5 more
europepmc   +1 more source

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