Abstract
A novel (SiO2/MgO/MgCl2)·TiClx Ziegler–Natta catalyst for ethylene and ethylene/1‐hexene polymerization is successfully developed through impregnation of aqueous solution of water‐soluble Mg‐compounds such as magnesium acetate on silica gel, and forming a supported thin layer of magnesium oxide on the surface of SiO2 after high temperature calcination in dry air or oxygen, followed by further reacting with titanium tetrachloride to synthesize the magnesium dichloride carrier in situ and to support the titanium species simultaneously. The method is relatively simple and the resulting catalysts exhibit high activity, good hydrogen response, and copolymerization ability with high 1‐hexene incorporation. Unlike the traditional industrial Ti/Mg Ziegler–Natta catalysts using the relatively expensive, anhydrous and moisture‐sensitive MgCl2, Mg(OEt)2, MgR2 or RMgCl as Mg‐sources, the most unique feature of this novel catalyst is its capability of utilization of any soluble Mg‐compounds and thus shows great potential for application in commercial gas‐phase polyolefin processes. image
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
