Production method of precursor gel of support for catalyst, support for catalyst, production method of catalyst support, catalyst for olefin polymerization, olefin polymerization method by this catalyst

摘要

It contains a minimum of constituents selected from silica, alumina and aluminum phosphate, has a specific surface area of 100 to 800 m ² / g, crystallization temperature and pupil volume of 700 ° C or higher, and has a specific surface area (SS) and a pupil volume (PV). A support for a catalyst having the following relationship;;SS 〈(PV × 564-358);Alcohol, water, silicon alkoxide and acid are mixed under conditions that prevent gelation or precipitation of silica, and an acidic solution of aluminum compound is added thereto, a gelling agent is added thereto, a gel is recovered, the gel is washed with water, and then washed with an organic liquid. And drying the gel until a powder is obtained, and then calcining the powder.;The olefin polymerization method performed in presence of the catalyst containing chromium in the support body mentioned above.