47.
    发明专利
    未知

    公开(公告)号:DE19840587A1

    公开(公告)日:2000-03-09

    申请号:DE19840587

    申请日:1998-09-05

    Applicant: BASF AG

    Abstract: The invention relates to a catalyst for producing polyetherols by ring-opening polymerisation of alkylene oxides and is characterised in that one or more compounds of type (I) M'aM''b (OH)c Od * Ae * Lf are applied to or introduced into solid inert supports or moulded into shapes, M' being at least one metal ion selected from the groups IA, IIA, Ni or Zn and mixtures thereof, M'' being at least one metal ion selected from the groups IIIA,IVA, IB to VIIIB, As, Sb and Bi, and mixtures thereof, A being at least one monovalent or multivalent inorganic or organic anion and L being an inorganic or organic ligand, a being a rational number, b, c, d, e and f being rational numbers greater than or equal to zero, although c and d may not both be zero at the same time, and a, b, c, d, e and f being selected with the aim of guaranteeing the electroneutrality of the compound.

    49.
    发明专利
    未知

    公开(公告)号:DE19809539A1

    公开(公告)日:1999-09-09

    申请号:DE19809539

    申请日:1998-03-05

    Applicant: BASF AG

    Abstract: The invention relates to double metal cyanide catalysts (DMC) which are applied to solid, inert non-foamed supports, introduced into the same or shaped into forms. The invention also relates to the production of said double metal cyanide catalysts and to their use for producing polyether alcohols with a low unsaturated compound content by means of catalytic ring-opening polymerisation of alkylene oxides. The DMC can be e.g., zinc hexacyanocobaltate.

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