31.
    发明专利
    未知

    公开(公告)号:DE59910856D1

    公开(公告)日:2004-11-18

    申请号:DE59910856

    申请日:1999-07-15

    Applicant: BASF AG

    Abstract: A process for preparing halogen-free, reactive polyisobutene having a terminal double bond content of more than 60 mol % and an average molecular weight Mn of 800-3000 dalton by cationic polymerization in the liquid phase of isobutene over an acidic, essentially halogen-free heterogeneous catalyst, wherea) a hydrocarbon mixture of essentially C4-hydrocarbons comprising isobutene in an amount of from 10 to 80% by weight is used as the starting material andb) polymerization is carried out continuously at from -30 to 0° C. with average starting material residence times of one hour or less, where the temperature and the residence time are selected such that the isobutene conversion is less than 60% and, after separation from the resulting polyisobutene, the isobutene is either enriched in the partially converted hydrocarbon mixture and returned to the polymerization or passed to another isobutene reaction coupled with the polymerization.

    32.
    发明专利
    未知

    公开(公告)号:ES2181291T3

    公开(公告)日:2003-02-16

    申请号:ES98954291

    申请日:1998-09-28

    Applicant: BASF AG

    Abstract: A crystalline multimetal cyanide complex of the formula (I)whereM1 is at least one element from the group consisting of Zn(II), Fe(II), Co(III), Ni(II), Mn(II), Co(II), Sn(II). Pb(II), Fe(III), Mo(IV), Mo(VI), Al(III), V(IV), V(V), Sr(II, W(IV), W(VI), Cu(II), and Cr(III),M2 is at least one element from the group consisting of Fe(II), Fe(III), Co(III), Cr(III), Mn(II), Mn(III), Ir(III), Rh(III), Ru(II), V(IV), V(V), Co(II) and Cr(II),L1 is at least one ligand from the group consisting of cyanide, carbonyl, cyanate, isocyanate, nitrile, thiocyanate and nitrosyl,X is a formate anion, an acetate anion or propionate anion,L2 is at least one water-miscible ligand from the group consisting of alcohols, aldehydes, ketones, ethers, polyethers, esters, urea derivatives, amides, nitriles and sulfides,a, b, c, d, e, f, g, h, i are integers, witha, b, c and d being chosen so that the electrical neutrality condition is satisfied, andf and g being chosen so that the electrical neutrality condition is satisfied,the X-ray diffiactogram of which shows reflections at particular d values, can be employed as catalyst.

    33.
    发明专利
    未知

    公开(公告)号:AT220684T

    公开(公告)日:2002-08-15

    申请号:AT98954291

    申请日:1998-09-28

    Applicant: BASF AG

    Abstract: A crystalline multimetal cyanide complex of the formula (I)whereM1 is at least one element from the group consisting of Zn(II), Fe(II), Co(III), Ni(II), Mn(II), Co(II), Sn(II). Pb(II), Fe(III), Mo(IV), Mo(VI), Al(III), V(IV), V(V), Sr(II, W(IV), W(VI), Cu(II), and Cr(III),M2 is at least one element from the group consisting of Fe(II), Fe(III), Co(III), Cr(III), Mn(II), Mn(III), Ir(III), Rh(III), Ru(II), V(IV), V(V), Co(II) and Cr(II),L1 is at least one ligand from the group consisting of cyanide, carbonyl, cyanate, isocyanate, nitrile, thiocyanate and nitrosyl,X is a formate anion, an acetate anion or propionate anion,L2 is at least one water-miscible ligand from the group consisting of alcohols, aldehydes, ketones, ethers, polyethers, esters, urea derivatives, amides, nitriles and sulfides,a, b, c, d, e, f, g, h, i are integers, witha, b, c and d being chosen so that the electrical neutrality condition is satisfied, andf and g being chosen so that the electrical neutrality condition is satisfied,the X-ray diffiactogram of which shows reflections at particular d values, can be employed as catalyst.

    METHOD FOR PRODUCING ALKYLENE GLYCOL

    公开(公告)号:CA2310835A1

    公开(公告)日:1999-07-08

    申请号:CA2310835

    申请日:1998-12-18

    Applicant: BASF AG

    Abstract: The invention relates to a method for producing alkylene glycol or a mixture of two different alkylene glycols, wherein a reaction mixture containing at least one alkylene oxide or a mixture of two or more different alkylene oxides, a catalyst and water are made to react. The catalyst can not be dissolved in the reaction mixture and has at least one covalently linked acid functional group and at least one covalently linked basic functional group. The invention also relates to a moulded body with at least one acid group and at least one basic functional group, whereby the functional groups are covalently linked to the support.

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