1.
    发明专利
    未知

    公开(公告)号:DE1805765A1

    公开(公告)日:1970-05-21

    申请号:DE1805765

    申请日:1968-10-29

    Applicant: BASF AG

    Abstract: 1277909 Polypropylene BADISCHE ANIUN- & SODA-FABRIK AG 28 Oct 1969 [29 Oct 1968] 52693/69 Heading C3P Propylene is polymerized in the gas phase in the presence of a bed of powdered polypropylene by means of a catalyst system comprising (a) an aluminium alkyl compound dissolved in a hydrocarbon and (b) a titanium or vanadium halide compound suspended in a hydrocarbon, one of the components (a) or (b) being fed directly into the stirred powder bed and the other being fed directly into the gas space above the powdered bed, and the component (b) being metered in uniformally. In the examples propylene is forced under pressure into a reactor and suspensions of TiCl 3 . 1 / 3 AlCl 3 in cyclohexane and solutions of Al(C 2 HO) 3 in cyclohexane are introduced (i) into the gas space and powdered bed, respectively, and (ii) into the powdered bed and gas space respectively.

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