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    41.
    发明专利
    未知

    公开(公告)号：DE3834088A1

    公开(公告)日：1990-04-12

    申请号：DE3834088

    申请日：1988-10-07

    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).

    43.
    发明专利
    未知

    公开(公告)号：ES2096823T3

    公开(公告)日：1997-03-16

    申请号：ES93114892

    申请日：1993-09-16

    Applicant: BASF AG

    Inventor： MUELLER HANS-JOACHIM DR ,  FOLLMER GODOFREDO DR ,  KONRAD RAINER DR ,  SAIVE ROLAND DR ,  LUX MARTIN DR ,  GOERTZ HANS-HELMUT DR

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

    Abstract: Process for the preparation of a supported catalyst for the polymerisation of alpha -olefins, in which (1) a support gel containing silicon dioxide is prepared by (1.1) introducing a sodium or potassium waterglass solution into a rotating stream of an aqueous mineral acid both longitudinally and tangentially to the stream, spraying the silicic acid hydrosol thus formed in droplet form into a gaseous medium, allowing it to solidify into a hydrogel and freeing the hydrogel thus obtained of salt by washing without prior aging, (1.2) drying the hydrogel resulting from (1.1) to form the support gel, and (2) the support gel (1) is loaded with chromium trioxide or a chromium compound which can be converted into chromium trioxide under the conditions of the process step (3), which results in a chromium-containing support gel, and (3) the chromium-containing support gel (2) is heated in an anhydrous gas stream containing oxygen in a concentration of over 10% by volume for from 10 to 1000 minutes at from 400 to 1100 DEG C, the hydrogel resulting from the process step (1.1) being dried in the process step (1.2) over a time of not more than 60 seconds in a shaping flash dryer at an inlet temperature of from 80 to 400 DEG C .

    44.
    发明专利
    未知

    公开(公告)号：DE59305319D1

    公开(公告)日：1997-03-13

    申请号：DE59305319

    申请日：1993-09-16

    Applicant: BASF AG

    Inventor： MUELLER HANS-JOACHIM DR ,  FOLLMER GODOFREDO DR ,  KONRAD RAINER DR ,  SAIVE ROLAND DR ,  LUX MARTIN DR ,  GOERTZ HANS-HELMUT DR ,  FUNK GUIDO DR

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

    Abstract: Process for the preparation of a supported catalyst for the polymerisation of alpha -olefins, in which (1) a support gel containing silicon dioxide is prepared by (1.1) introducing a sodium or potassium waterglass solution into a rotating stream of an aqueous mineral acid both longitudinally and tangentially to the stream, spraying the silicic acid hydrosol thus formed in droplet form into a gaseous medium, allowing it to solidify into a hydrogel and freeing the hydrogel thus obtained of salt by washing without prior aging, (1.2) drying the hydrogel resulting from (1.1) to form the support gel, and (2) the support gel (1) is loaded with chromium trioxide or a chromium compound which can be converted into chromium trioxide under the conditions of the process step (3), which results in a chromium-containing support gel, and (3) the chromium-containing support gel (2) is heated in an anhydrous gas stream containing oxygen in a concentration of over 10% by volume for from 10 to 1000 minutes at from 400 to 1100 DEG C, the hydrogel resulting from the process step (1.1) being dried in the process step (1.2) over a time of not more than 60 seconds in a shaping flash dryer at an inlet temperature of from 80 to 400 DEG C .

    48.
    发明专利
    未知

    公开(公告)号：DE4323192A1

    公开(公告)日：1995-01-12

    申请号：DE4323192

    申请日：1993-07-10

    Applicant: BASF AG

    Inventor： ROHDE WOLFGANG DR ,  SAIVE ROLAND DR ,  GOERTZ HANS-HELMUT DR ,  SCHWEIER GUENTHER DR

    IPC: C08F4/02 ,  C08F4/639 ,  C08F4/6392 ,  C08F4/69 ,  C08F10/00

    Abstract: Polyalk-1-enes are prepared by polymerization of alk-1-enes with the aid of the compound bis(cyclopentadienyl)-chromium(II)in which the cyclopentadienyl rings may carry inert organic radicals, said compound being adsorbed on an inorganic oxide carrier, by a process in which the polymerization is carried out in the presence of an organometallic compound of a metal of main groups I to III or of a metal hydride, in particular of n-butyl-lithium.

    49.
    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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