Process for producing highly purified xyltlenediamine
    3.
    发明申请
    Process for producing highly purified xyltlenediamine 有权
    生产高纯度木聚糖二胺的方法

    公开(公告)号:US20090192334A1

    公开(公告)日:2009-07-30

    申请号:US11630648

    申请日:2005-06-22

    申请人: Kazuhiko Amakawa

    发明人: Kazuhiko Amakawa

    IPC分类号: C07C209/48

    摘要: A method of producing xylylenediamine from xylene. In the method, xylene is converted into dicyanobenzene by ammoxidation. The produced dicyanobenzene is extracted into an organic solvent. The extract is then distilled to separate dicyanobenzene from the organic solvent. After added with a solvent, the separated dicyanobenzene is hydrogenated in a liquid phase. Finally, the hydrogenation product is purified by distillation to obtain a highly pure xylylenediamine. The method is conducted in a simple and low energy-consuming process.

    摘要翻译: 从二甲苯生产苯二甲胺的方法。 在该方法中,通过氨氧化将二甲苯转化为二氰基苯。 将生成的二氰基苯萃取到有机溶剂中。 然后将提取物蒸馏以从有机溶剂中分离出二氰基苯。 加入溶剂后,分离的二氰基苯以液相氢化。 最后,通过蒸馏纯化氢化产物,得到高纯度的苯二甲胺。 该方法在简单且低耗能的过程中进行。

    Process for producing carbocyclic nitriles
    6.
    发明授权
    Process for producing carbocyclic nitriles 有权
    制备碳环腈的方法

    公开(公告)号:US06429330B1

    公开(公告)日:2002-08-06

    申请号:US09613632

    申请日:2000-07-11

    IPC分类号: C07C25328

    摘要: A carbocyclic or heterocyclic compound, ammonia and an oxygen-containing gas are subjected to fluid catalytic reaction in vapor phase in the presence of a catalyst containing alkali metal to produce an aromatic or heterocyclic nitrile. The use of the catalyst containing a specific amount of alkali metal enables the stable production of the aromatic or heterocyclic nitrile in high yields with little change with time even when water is present in the reaction system. The use of the catalyst containing the alkali metal also enables the recycle and reuse of unreacted ammonia which is usually accompanied by water, thereby reducing production costs.

    摘要翻译: 在含有碱金属的催化剂存在下,将碳环或杂环化合物,氨和含氧气体在气相中进行流化催化反应以产生芳族或杂环腈。 使用含有特定量的碱金属的催化剂能够以高产率稳定地生产芳族或杂环腈,即使在反应体系中存在水时也几乎不改变。 使用含有碱金属的催化剂也能够再循环和再利用通常伴有水的未反应的氨,从而降低生产成本。

    Vanadium-containing catalysts, process for manufacturing and use of the same
    8.
    发明授权
    Vanadium-containing catalysts, process for manufacturing and use of the same 失效
    含钒催化剂,其制造及使用方法

    公开(公告)号:US06281378B1

    公开(公告)日:2001-08-28

    申请号:US09586777

    申请日:2000-06-05

    IPC分类号: C07C25500

    摘要: Vanadium-containing catalysts are obtained by using polyvanadic acid as a source of vanadium. Vanadium-containing catalysts are obtained by mixing catalyst components other than vanadium, or their precursors, with a polyvanadic acid sol which is formed by ion-exchanging a metavanadic acid aqueous solution with a proton-type cation-exchange resin and performing polycondensation, and by drying and/or calcining the mixture. Such vanadium-containing catalysts can fully exhibit their catalytic activity under mild reaction conditions, and can be suitably used for various reactions, such as synthesis of phthalic anhydride by the partial oxidation of o-xylene, synthesis of benzaldehyde by the partial oxidation of toluene, synthesis of benzoic acid by the partial oxidation of toluene, synthesis of anisaldehyde by the partial oxidation of p-methoxy toluene, synthesis of propylene by the oxidative dehydrogenation of propane, synthesis of isobutene by the oxidative dehydrogenation of isobutane, synthesis of methyl formate by the oxidative dehydrogenation of methanol, and synthesis of acrylonitrile by the ammoxidation of propane.

    摘要翻译: 通过使用聚阴离子作为钒源,得到含钒催化剂。 含钒催化剂通过将除钒以外的催化剂组分或其前体与通过与质子型阳离子交换树脂离子交换偏钒酸水溶液并进行缩聚而形成的聚阴离子溶胶获得,并进行缩聚 干燥和/或煅烧该混合物。 这种含钒催化剂可以在温和的反应条件下充分发挥其催化活性,适用于各种反应,如通过邻二甲苯的部分氧化合成邻苯二甲酸酐,通过甲苯的部分氧化合成苯甲醛, 通过甲苯的部分氧化合成苯甲酸,通过对甲氧基甲苯的部分氧化合成茴香醛,通过丙烷的氧化脱氢合成丙烯,通过异丁烷的氧化脱氢合成异丁烯,通过甲酸甲酯合成甲酸甲酯 甲醇的氧化脱氢,丙烷的氨氧化合成丙烯腈。

    Silver aluminum borate oxidation catalyst and process for its preparation
    9.
    发明授权
    Silver aluminum borate oxidation catalyst and process for its preparation 失效
    硼酸铝铝氧化催化剂及其制备方法

    公开(公告)号:US4766102A

    公开(公告)日:1988-08-23

    申请号:US17315

    申请日:1987-02-20

    摘要: The present invention relates to a novel silver aluminum borate composition useful as a catalyst for oxidation and/or ammoxidation reactions. More particularly the invention is directed to silver aluminum borate having the general formula (x) Ag.sub.2 O.(y) Al.sub.2 O.sub.3.(z) B.sub.2 O.sub.3 where x, y and z are numbers representing molar amounts of the oxides such that the mole fraction of Ag.sub.2 O, calculated as x/(x+y+z) is from about 0.35 to about 0.60, the mole fraction of Al.sub.2 O.sub.3, calculated as y/(x+y+z) is from about 0.10 to about 0.40, and the mole fraction of B.sub.2 O.sub.3, calculated as z/(x+y+z) is from about 0.10 to about 0.45. The invention is further directed to a method for preparing the catalyst, and to its use as an oxidation or ammoxidation catalyst.

    摘要翻译: 本发明涉及一种可用作氧化和/或氨氧化反应催化剂的新型硼酸铝硼酸盐组合物。 更具体地,本发明涉及具有通式(x)Ag 2 O(y)Al 2 O 3。(z)B 2 O 3的硼酸铝铝,其中x,y和z是表示氧化物的摩尔量的数,使得Ag 2 O的摩尔分数, 以x /(x + y + z)计算为约0.35至约0.60,以y /(x + y + z)计算的Al 2 O 3的摩尔分数为约0.10至约0.40,并且B 2 O 3的摩尔分数 以z /(x + y + z)计算为约0.10至约0.45。 本发明进一步涉及一种制备该催化剂的方法及其作为氧化或氨氧化催化剂的用途。