| abstract |
Present invention encompasses the load catalyst system prepared according to the method comprised the following steps: i) have with one or more and be selected from Rn n ti (OR ')n m (RO)n n ti (OR ')n m general formula titanium compound dipping there is 150mn 2 / g-800mn 2 / g, preferably 280mn 2 / g-600mn 2 the silica containing support of the catalyst of the specific surface area of/g, to form the silica containing support of the catalyst of titanizing, the silica containing support of the catalyst of this titanizing has the Ti content of at least 0.1 % by weight of the weight of the support of the catalyst of flooding through Ti based on this, wherein R and R ' identical or different and the alkyl be selected from containing 1-12 carbon and halogen, and wherein n is that 0-4, m are 0-4 and m+n equals 4, wherein said load catalyst system comprises aikyiaiurnirsoxan beta and metallocene further. |