161.
    发明专利
    未知

    公开(公告)号:DE50106337D1

    公开(公告)日:2005-06-30

    申请号:DE50106337

    申请日:2001-09-17

    Applicant: BASF AG

    Abstract: In a process for the hydroformylation of ethylenically unsaturated compounds, at least one complex of a metal of transition group VIII. with at least one phosphorus-, arsenic- or antimony-containing compound as ligand is used as hydroformylation catalyst, where the compound used as ligand in each case comprises two groups which comprise a P, As or Sb atom and at least two further hetero atoms and are bound to a xanthene-like molecular framework. New compounds of this type and catalysts which comprise at least one complex of a metal of transition group VIII. with at least one such compound as ligand are also provided.

    METHOD FOR THE RECYCLING OF A LEWIS ACID

    公开(公告)号:AU2003246375A1

    公开(公告)日:2004-02-02

    申请号:AU2003246375

    申请日:2003-07-04

    Applicant: BASF AG

    Abstract: A process for the recovery of a Lewis acid from a reaction mixture (I) which has been obtained in the hydrocyanation of an olefinically unsaturated compound to a nitrile which has a miscibility gap with water under certain pressure and temperature conditions, in the presence of a catalyst system comprising a Lewis acid and a complex compound. The method comprises a) removing the complex compound from mixture (I) to give a mixture (II), b) adding water to mixture (II) and placing mixture (II) under pressure and temperature conditions to provide a phase (III) and a phase (IV), c) adding a liquid diluent (V) which c1) does not form an azeotrope with water and whose boiling point under certain pressure conditions is higher than that of water, or c2) forms an azeotrope or heteroazeotrope with water under certain pressure conditions, to phase (III), d) subjecting the mixture of phase (III) and liquid diluent (V) to distillation under the pressure conditions mentioned in step c1) or c2), and e) subjecting mixture (VII) to hydrocyanation of an olefinically unsaturated compound to give the nitrile.

    167.
    发明专利
    未知

    公开(公告)号:BR0015200A

    公开(公告)日:2002-06-18

    申请号:BR0015200

    申请日:2000-10-25

    Applicant: BASF AG

    Abstract: New phosphites (I), with alkylaryl, arylaryl and/or condensed aryl groups, have 1, 2 or 3 o-substituted and optionally 1 or 2 m- and/or p-substituted aryl groups. New phosphites of formula (I), with alkylaryl, arylaryl and/or condensed aryl groups, have 1, 2 or 3 o-substituted and optionally 1 or 2 m- and/or p-substituted aryl groups; P(O-R 1>)(O-R 2>) y(O-R 3>) z(O-R 4>) p (I) R 1>an aromatic group with a 1-18 carbon (C) alkyl, an aromatic substituent or a condensed aromatic system in the o-position to the oxygen (O) atom linking the phosphorus (P) atoms to the aromatic system; R 2>a similar aromatic group substituted in the m-position; R 3>a similar aromatic group substituted in the p-position; R 4>an aromatic group with a different substituent in the o-, m- or p-position and a hydrogen (H) atom in the o-position; x : 1 or 2; y, z, p : 0, 1 or 2; (x+y+z+p) : 3 Independent claims are also included for: (a) new transition metal complexes (II) with (I) as ligand; (b) the preparation of (I); (c) the preparation of (II); (d) the addition of hydrogen cyanide to an olefinic double bond in the presence of (II) as catalyst; and (e) the isomerization of organic nitriles in the presence of (II) as catalyst.

    168.
    发明专利
    未知

    公开(公告)号:DE10049265A1

    公开(公告)日:2002-04-11

    申请号:DE10049265

    申请日:2000-09-28

    Applicant: BASF AG

    Abstract: The invention relates to a method for separating pentenenitrile isomers having a relative volatility alpha in the region 1.0 - 1.3 in a pressure range of 1 - 500 kPa by means of separation. According to said method, the distillation is carried out in the presence of a liquid diluent which forms azeotropes with the pentenenitrile isomers in the same pressure conditions, whose relative volatility alpha is higher than the pentenenitrile isomers which are to be separated.

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