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33 条记录 (耗时 0.025 秒)

    Method for the production of aldehydes
    2.
    发明授权
    Method for the production of aldehydes 失效
    醛的生产方法

    公开(公告)号：US06310261B1

    公开(公告)日：2001-10-30

    申请号：US09582780

    申请日：2000-07-03

    申请人： Bernhard Geissler ,  Michael Röper ,  Edgar Zeller ,  Rocco Paciello ,  Jürgen Decker ,  Hartwig Voss ,  Norbert Mahr

    发明人： Bernhard Geissler ,  Michael Röper ,  Edgar Zeller ,  Rocco Paciello ,  Jürgen Decker ,  Hartwig Voss ,  Norbert Mahr

    IPC分类号： C07C4550

    CPC分类号： C08G73/0206 ,  B01J31/1658 ,  B01J31/1805 ,  B01J2231/321 ,  B01J2531/80 ,  B01J2531/822 ,  C07C45/50 ,  Y02P20/584 ,  C07C47/02

    摘要： The invention relates to a method for the production of aldehydes or aldehydes and alcohols by hydroformylation of olefins in the presence of a complexing catalyst homogeneously dissolved in a reaction mixture, containing a metal of Group VIIIa of the periodic table of the elements and a phosphorus-free, polydentate nitrogen compound suitable for complex formation as ligand at temperatures ranging from 50 to 100° C. and pressures from 20 to 1,000 bar and recirculating the catalyst complex in the hydroformylation reaction, wherein a) derivatized polyamines are used that are substantially non-water soluble and suitable for complex formation and have a mean molecular weight of more than 1,000 Dalton and at least 10 nitrogen atoms; b) the catalyst complex remaining in the bottom of the distillation column and the excess ligands obtained from the reaction mixture are recirculated totally or partially in the hydroformylation once the hydroformylation reaction and the separation or partial separation by distillation of the aldehydes and the alcohols has been completed; c) continues or at least batchwise evacuation of at least part of the high boiler from the bottom of the distillation of the reaction mixture is then carried out.

    摘要翻译： 本发明涉及通过在均匀溶解在含有元素周期表第Ⅷa族金属的反应混合物的络合催化剂存在下烯烃的加氢甲酰化生产醛或醛和醇的方法， 在50至100℃的温度和20至1,000巴的压力下适合于络合物形成配位体的多余的多齿氮化合物，并且在加氢甲酰基化反应中再循环催化剂配合物，其中a）使用基本上不相容的衍生的多胺， 水溶性且适合于络合物形成，并且具有大于1,000道尔顿和至少10个氮原子的平均分子量; b）一旦加氢甲酰化反应和通过蒸馏醛和醇的分离或部分分离已经被残留在蒸馏塔底部的催化剂络合物和从反应混合物中得到的过量配体在加氢甲酰化反应中被全部或部分再循环 完成 c）然后执行从反应混合物的蒸馏底部继续或至少间歇抽出高锅炉的至少一部分。

    Method for producing phosphabenzene compounds
    6.
    发明授权
    Method for producing phosphabenzene compounds 失效
    膦酸化合物的制备方法

    公开(公告)号：US06255532B1

    公开(公告)日：2001-07-03

    申请号：US09509672

    申请日：2000-03-30

    申请人： Rocco Paciello ,  Edgar Zeller ,  Bernhard Breit ,  Michael Röper

    发明人： Rocco Paciello ,  Edgar Zeller ,  Bernhard Breit ,  Michael Röper

    IPC分类号： C07F950

    CPC分类号： C07F9/6568 ,  B01J31/2419 ,  B01J31/2461 ,  B01J2231/321 ,  B01J2531/822 ,  B01J2531/845

    摘要： A process for the preparation of phosphabenzene compounds of the formulae I and II where R1 to R6, independently of one another, are hydrogen, COOM SO3M, NR3X, NR2, OR, COOR or SR, where M is hydrogen, NH4 or an alkali metal, X is an anion, R is hydrogen, C1-6-alkyl, or C1-12-alkyl, C6-12-aryl, C7-12-aralkyl or C3-6-heterocycloalkyl having 1 to 3 heteroatoms which may be substituted by the above radicals or linked to form fused rings, and —W— is a bridge comprising a covalent bond, an oxo group, a sulfur group, an amino group, a di-C1-6-alkylsilicon group or a C1-16-radial, which may be part of one or more linked cyclic or aromatic rings and may be interrupted by 1 to 3 heteroatoms, where the phosphabenzene ring o- or m-position not bonded to the bridge may carry one of the radicals R1 to R6, with the exception of bis-3,3′-(2,4,6-triphenyl-3-phosphabenzene)-1,1-biphenyl, by reacting corresponding pyrilium salts with PH3 in the presence of a catalytic amount of acid and in the presence or absence of a solvent or diluent, where the pyrilium salts are mixed with PH3 at above 0° C. and reacted at from 0° C. to 200° C. and at a pressure greater than 1 bar.

    摘要翻译： 制备式I和II的膦酸化合物的方法，其中R 1至R 6彼此独立地为氢，COOM SO 3 M，NR 3 X，NR 2，OR，COOR或SR，其中M为氢，NH 4或碱金属， X是阴离子，R是氢，C 1-6 - 烷基或C 1-12 - 烷基，C 6-12 - 芳基，C 7-12 - 芳烷基或具有1至3个杂原子的C 3-6 - 杂环烷基，其可以被 并且-W-是包含共价键，氧代基团，硫基团，氨基基团，二-C1-6烷基硅基团或C1-16-放射状核团的桥， 其可以是一个或多个连接的环状或芳香环的一部分，并且可以被1至3个杂原子中断，其中未键合到桥的膦酰基环或 - 位置可以携带基团R1至R6中的一个，其中 通过使相应的吡啶鎓盐与PH 3在催化量的酸的存在下反应，并在存在或不存在下，将双-3'' - （2,4,6-三苯基-3-苯基苯基） 没有溶剂或稀释剂，其中吡啶鎓盐在0℃下与PH3混合，并在0℃至200℃和大于1巴的压力下反应。

    Method for producing methyl formate
    8.
    发明授权
    Method for producing methyl formate 失效
    甲酸甲酯的生产方法

    公开(公告)号：US07053239B2

    公开(公告)日：2006-05-30

    申请号：US10511088

    申请日：2003-04-15

    申请人： Christoph Adami ,  Michael Slany ,  Jörn Karl ,  Gerd Kaibel ,  Martin Schäfer ,  Peter Zehner ,  Michael Röper

    发明人： Christoph Adami ,  Michael Slany ,  Jörn Karl ,  Gerd Kaibel ,  Martin Schäfer ,  Peter Zehner ,  Michael Röper

    IPC分类号： C07C67/36

    CPC分类号： C07C67/36 ,  C07C69/06

    摘要： The invention relates to a process for the preparation of methyl formate by reacting methanol with carbon monoxide at a pressure of from 0.5 to 10 MPa abs. and a temperature of from 50 to 150° C. in the presence of a metal alkoxide as catalyst in a reactor, in which a gas stream is withdrawn from the reactor, entrained methyl formate is removed from this gas stream by condensation, and all or some of the remaining gas stream is returned to the reactor as circulating-gas stream and a mean gas superficial velocity of from 1 to 20 cm/s is set in at least one region of the reactor in which the gas flows essentially in one direction.

    摘要翻译： 本发明涉及一种通过使甲醇与一氧化碳在0.5至10MPa abs的压力下反应制备甲酸甲酯的方法。 在反应器中从作为催化剂的金属醇盐存在下的温度为50-150℃，其中将气流从反应器中排出，夹带的甲酸甲酯通过冷凝从该气流中除去，全部或 一些剩余的气流作为循环气体流返回到反应器，并且在反应器的至少一个区域中设置1至20cm / s的平均气体空气速度，其中气体基本上在一个方向上流动。