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    ZIEGLER/NATTA CATALYST MODIFIED IN PROCESS OF PRODUCTION AND ITS PRODUCTION
    1.
    发明专利
    ZIEGLER/NATTA CATALYST MODIFIED IN PROCESS OF PRODUCTION AND ITS PRODUCTION 失效

    公开(公告)号：JPH10152517A

    公开(公告)日：1998-06-09

    申请号：JP24886197

    申请日：1997-09-12

    Applicant: BASF AG

    Inventor： HUEFFER STEPHAN DR ,  MOLL ULRICH DR ,  MAC KENZIE IAN DAVID DR ,  LANGHAUSER FRANZ DR ,  KOELLE PETER DR ,  HINGMANN ROLAND DR ,  SCHWEIER GUENTHER DR ,  HEMMERICH RAINER DR ,  KERTH JUERGEN DR

    IPC: C08F4/02 ,  C08F4/642 ,  C08F4/646 ,  C08F4/654 ,  C08F4/658 ,  C08F10/00

    Abstract: PROBLEM TO BE SOLVED: To provide Ziegler/Natta catalyst composition capable of providing a high productivity and stereospecificity, producible in a short time and capable of reducing the amount a titanium- or a chlorine-containing starting material. SOLUTION: This Ziegler/Natta catalyst composition comprises (a) a titanium- containing solid component, (b) an aluminum compound and, as necessary, (c) an electron donative compound. The component (a) is produced by mixing an inorganic compound as a carrier with a solution of a magnesium compound without containing chlorine in an inert solvent, then reacting the resultant mixture with a 1-8C alkanol in an excessive amount of >=1.3 times based on the magnesium compound at -20 to +80 deg.C under stirring, subsequently mixing the prepared product with a tri- or a tetravalent titanium compound and a carboxylic acid ester as an electron donor without carrying out the purification and extraction thereof, then separating a solid material by filtration, extracting the resultant solid with a solution containing >=5wt.% titanium tetrachloride in an inert solvent and further washing the solid material with a liquid alkane.

    2.
    发明专利
    未知

    公开(公告)号：AT140932T

    公开(公告)日：1996-08-15

    申请号：AT92116233

    申请日：1992-09-23

    Applicant: BASF AG

    Inventor： FUNK GUIDO DR ,  HEMMERICH RAINER DR ,  GROPPER HANS DR ,  KOLK ERICH DR ,  FOLLMER GODOFREDO DR

    IPC: C08F4/02 ,  C08F4/06 ,  C08F4/22 ,  C08F4/24 ,  C08F4/69 ,  C08F10/00 ,  C08F10/02

    Abstract: In a new process for the preparation of a supported catalyst for the polymerisation of alpha -olefins, first a support gel (1) is prepared by introducing a sodium water glass or potassium water glass solution into a swirling stream of an aqueous mineral acid optionally containing aluminium ions longitudinally and tangentially to the stream, spraying the resultant silicic acid hydrosol in drop form into a gaseous medium, and allowing it to solidify to form a hydrogel, and freeing the resultant hydrogel, without prior ageing, from salts by washing and optionally from some of the water by extraction with alcohols and/or ketones, and then drying the hydrogel. This gives the support gel (1), which is ground and fractionated according to particle size. In a second process step, the support gel (1) is charged with chromium trioxide or with a chromium compound which can be converted into chromium trioxide, after which the resultant chromium-containing support gel (2) is heated at from 400 to 1100 DEG C for from 10 to 1000 minutes in an anhydrous gas stream containing oxygen in a concentration greater than 10% by volume. It is essential for the process according to the invention that the drying of the hydrogel to form the support gel (1) takes place in a high-speed drier within a maximum time of 300 seconds at an inlet temperature of from 200 to 600 DEG C. The supported catalyst prepared in this way gives homopolymers and copolymers of ethylene having excellent low-temperature toughness.

    3.
    发明专利
    未知

    公开(公告)号：DE58906885D1

    公开(公告)日：1994-03-17

    申请号：DE58906885

    申请日：1989-09-30

    Applicant: BASF AG

    Inventor： SAIVE ROLAND DR ,  FUNK GUIDO DR ,  HEMMERICH RAINER DR

    IPC: C08F4/607 ,  C08F4/629 ,  C08F4/642 ,  C08F4/647 ,  C08F4/65 ,  C08F4/685 ,  C08F10/02

    Abstract: The invention relates to the homopolymerisation or copolymerisation of ethene by means of a Ziegler catalyst system comprising (1) a transition-metal catalyst component, (2) an organoaluminium catalyst component and (3) an organohalogen catalyst component, characterised in that (1) is the solid-phase product (VI) obtained by (1.1) first combining (1.1.1) an inorganic oxide (1) as a support with (1.1.2) a solution (II) of (IIa) a certain oxahydrocarbon and (IIb) a mixture of (IIb1) a vanadium trichloride/alcohol complex, (IIb2) a titanium trihalide or titanium trihalide/alcohol complex and (IIC) a silicon or boron compound, to form a suspension (III), evaporating the latter to form a solid-phase intermediate (IV), and (1.2) then (1.2.1) combining the intermediate (IV) obtained from (1.1) with (1.2.2) a dissolved organoaluminium compound (V), to form a suspension, the solid-phase product (VI) resulting therefrom as the suspended material being the transition-metal catalyst component (1).

    5.
    发明专利
    未知

    公开(公告)号：DE58906248D1

    公开(公告)日：1994-01-05

    申请号：DE58906248

    申请日：1989-09-21

    Applicant: BASF AG

    Inventor： FUNK GUIDO DR ,  WEBER SIEGFRIED DR ,  HEMMERICH RAINER DR

    IPC: C08F2/34 ,  C08F2/44 ,  C08F4/60 ,  C08F4/64 ,  C08F10/02

    Abstract: The invention relates to a process for the preparation of ultrahigh-molecular-weight ethylene polymers in the gas phase in a fluidised bed of particulate polymer by the continuous introduction of the appropriate monomers into a polymerisation system at from 60 to 120 DEG C and at from 5 to 60 bar in the presence of a reaction product of a titanium-containing catalyst and an antistatic and in the presence of a monohydric or polyhydric alcohol, and to an ultrahigh-molecular- weight ethylene polymer prepared by said process.

    9.
    发明专利
    未知

    公开(公告)号：ES2061865T3

    公开(公告)日：1994-12-16

    申请号：ES89118174

    申请日：1989-09-30

    Applicant: BASF AG

    Inventor： SAIVE ROLAND DR ,  FUNK GUIDO DR ,  HEMMERICH RAINER DR

    IPC: C08F4/607 ,  C08F4/629 ,  C08F4/642 ,  C08F4/647 ,  C08F4/65 ,  C08F4/685 ,  C08F10/02

    Abstract: The invention relates to the homopolymerisation or copolymerisation of ethene by means of a Ziegler catalyst system comprising (1) a transition-metal catalyst component, (2) an organoaluminium catalyst component and (3) an organohalogen catalyst component, characterised in that (1) is the solid-phase product (VI) obtained by (1.1) first combining (1.1.1) an inorganic oxide (1) as a support with (1.1.2) a solution (II) of (IIa) a certain oxahydrocarbon and (IIb) a mixture of (IIb1) a vanadium trichloride/alcohol complex, (IIb2) a titanium trihalide or titanium trihalide/alcohol complex and (IIC) a silicon or boron compound, to form a suspension (III), evaporating the latter to form a solid-phase intermediate (IV), and (1.2) then (1.2.1) combining the intermediate (IV) obtained from (1.1) with (1.2.2) a dissolved organoaluminium compound (V), to form a suspension, the solid-phase product (VI) resulting therefrom as the suspended material being the transition-metal catalyst component (1).

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