PROCESS FOR THE PREPARATION OF A NICKEL/PHOSPHORUS LIGAND CATALYST
    132.
    发明授权
    PROCESS FOR THE PREPARATION OF A NICKEL/PHOSPHORUS LIGAND CATALYST 有权
    用于生产镍/磷配体催化剂

    公开(公告)号:EP1610894B1

    公开(公告)日:2007-03-28

    申请号:EP04759127.6

    申请日:2004-04-06

    CPC classification number: B01J31/185 B01J2231/323 B01J2531/847 C07F9/145

    Abstract: Process for preparing a nickel/ligand catalyst in which a crude ligand mixture is contacted with at least one member selected from the group consisting of (i) a weakly acidic organic resin, (ii) a weakly basic organic resin, (iii) a high-surface-area organic resin, (iv) activated carbon, (v) aluminosilicate zeolite, (vi) a two phase solvent system for liquid-liquid extraction and (vii) a Lewis acid; recovering a solution containing a ligand of the formula (R1O)2POZOP(OR1)2; and contacting the solution with nickel chloride in the presence of a nitrile solvent and a reducing metal which is more electropositive than nickel to produce the nickel/ligand catalyst.

    METHOD FOR MAKING CAPROLACTAM
    134.
    发明授权
    METHOD FOR MAKING CAPROLACTAM 有权
    CAPROLACTAM的制备方法

    公开(公告)号:EP1636178B1

    公开(公告)日:2006-12-20

    申请号:EP04755552.9

    申请日:2004-06-17

    CPC classification number: C07D223/04

    Abstract: Method for making caprolactam from 6-aminocapronitrile that contains greater than 500 ppm tetrahydroazepine and its derivatives (THA) in which ammonia and water are removed from crude caprolactam in a single separation step and then THA is removed from the resulting caprolactam melt.

    Abstract translation: 由含有大于500ppm四氢吖庚因及其衍生物(THA)的6-氨基己腈制备己内酰胺的方法,其中在单一分离步骤中从粗己内酰胺中除去氨和水,然后从所得己内酰胺熔体中除去THA。

Patent Agency Ranking