MANUFACTURING METHOD OF SOLID CATALYST FOR PROPYLENE POLYMERIZATION
申请人:Samsung Total Petrochemicals Co. Ltd.
公开号:EP2511303A2
公开(公告)日:2012-10-17
Disclosed is a method for preparing a solid catalyst for propylene polymerization, specifically to a method for preparing a solid catalyst for propylene polymerization which can produce a polypropylene having high melt flow rate, a wide molecular distribution and excellent stereoregularity with a high production yield.
Solid catalyst component for use in olefin polymerisation, catalyst, and application thereof
申请人:BEIJING LIHE TECHNOLOGY LTD
公开号:US11136421B2
公开(公告)日:2021-10-05
Provided in the present invention is a solid catalyst component for use in olefin polymerisation, comprising Mg, Ti, a halogen, and at least one electron donor, the electron donor being a 2-substituted amino-phenyl ester compound selected from general formula (I). Also disclosed in the present invention are a catalyst comprising the solid catalyst component, and an application for the catalyst in olefin polymerisation, particularly in propylene polymerization. Also provided in the present invention is a high activity catalyst, said catalyst being able to obtain polypropylene of high isotacticity and wide molecular weight distribution, and not requiring an external electron donor to obtain high isotacticity polypropylene; during polymerization, Al/Ti and Al/Si are reduced, the polymerization time is lengthened, and high activity can still be maintained, suitable for producing low-ash polymers.