COMPOSITION FOR IMPROVED NICKEL-LIGAND SOLUBILITY
    102.
    发明申请
    COMPOSITION FOR IMPROVED NICKEL-LIGAND SOLUBILITY 审中-公开
    用于改善镍基配体溶解性的组合物

    公开(公告)号:WO2014089492A1

    公开(公告)日:2014-06-12

    申请号:PCT/US2013/073688

    申请日:2013-12-06

    Inventor: VOS, Thomas E.

    Abstract: In the hydrocyanation reaction of butadiene proceeding through pentenenitriles to adiponitrile, catalysis by complexes of zerovalent nickel with bidentate phosphorus-based ligands of the NiL 2 A type wherein L 2 is a bidentate ligand and A is an unsaturated compound, can be rate-limited by the solubility of the catalytic complex. The present invention concerns solvent compositions for the nickel-ligand complex comprising mixtures of unsaturated nitriles that provide for increased metal solubility, particularly in the absence of a Lewis acid promoter, resulting in higher hydrocyanation reaction rates in an industrial-scale process for production of important nylon manufacturing intermediates. The mixed nitrile solvent compositions can include mixtures of pentenenitriles and/or methylbutenenitriles. The mixtures of mixed unsaturated nitriles can be, at least in part, from recycle streams from the hydrocyanation reaction for which the nickel-bidentate ligand complexes are used as catalysts.

    Abstract translation: 在通过戊烯腈进行己二腈的丁二烯的氢化反应中,通过与零价镍的络合物与NiL2A型的二齿磷系配体的催化作用,其中L2是二齿配体,A是不饱和化合物,可以通过溶解度 催化复合物。 本发明涉及用于镍 - 配体络合物的溶剂组合物,其包括提供金属溶解度增加的不饱和腈的混合物,特别是在不存在路易斯酸促进剂的情况下,导致在工业规模生产过程中较高的氢氰化反应速率 尼龙制造中间体。 混合的腈溶剂组合物可以包括戊烯腈和/或甲基丁烯腈的混合物。 混合的不饱和腈的混合物可以至少部分地来自使用镍二齿配位体配合物作为催化剂的氢化氰化反应的再循环流。

    CORROSION CONTROL IN AMMONIA EXTRACTION BY AIR SPARGING
    104.
    发明申请
    CORROSION CONTROL IN AMMONIA EXTRACTION BY AIR SPARGING 审中-公开
    通过空气分配提取氨氮的腐蚀控制

    公开(公告)号:WO2014014619A1

    公开(公告)日:2014-01-23

    申请号:PCT/US2013/047349

    申请日:2013-06-24

    Abstract: The present invention relates to reduction of corrosion. The present invention includes a method of decreasing corrosion during ammonia extraction. The method includes performing a process to extract ammonia using ammonia extraction equipment. The ammonia extraction equipment includes an ammonia absorber, an ammonia desorber, and an aqueous solution. The aqueous solution includes an acid or an ammonium salt thereof. The method also includes sparging an oxygen-containing gas into the solution in the ammonia absorber, the ammonia desorber, or therebetween. The invention also provides a system that can perform the method.

    Abstract translation: 本发明涉及减少腐蚀。 本发明包括在氨提取期间减少腐蚀的方法。 该方法包括执行使用氨提取设备提取氨的方法。 氨提取设备包括氨吸收器,氨解吸器和水溶液。 水溶液包含酸或其铵盐。 该方法还包括将含氧气体喷射到氨吸收器,氨解吸器中或其间的溶液中。 本发明还提供一种可以执行该方法的系统。

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