期刊
CATALYSIS IN INDUSTRY
卷 6, 期 3, 页码 198-201出版社
MAIK NAUKA-INTERPERIODICA
DOI: 10.1134/S2070050414030106
关键词
Ti-Mg catalyst; propylene; polymerization; polypropylene; isotacticity; granulation; physical and mechanical properties
A comparative study of propylene polymerization in liquid monomer is performed under laboratory conditions using the IK-8-21 Ti-Mg catalyst designed at the Boreskov Institute of Catalysis and imported industrial catalysts (conditionally labeled TMC-1, -2, and -3). The activity and stereospecificity of the catalysts are estimated along with properties of the resulting polypropylene (granular composition and physicomechanical characteristics). It is shown that the IK-8-21 catalyst is not inferior to imported counter-parts in terms of catalytic properties in the synthesis of polypropylene. The polypropylene powder formed on IK-8-21 is homogeneous and has good morphology. The physicomechanical characteristics of polypropylene synthesized on the domestic IK-8-21 catalyst are similar to those for polypropylene prepared with the imported TMK-1 catalyst.
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