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    • 4. 发明授权
    • Method for the production of aldehydes
    • 醛的生产方法
    • US06310261B1
    • 2001-10-30
    • US09582780
    • 2000-07-03
    • Bernhard GeisslerMichael RöperEdgar ZellerRocco PacielloJürgen DeckerHartwig VossNorbert Mahr
    • Bernhard GeisslerMichael RöperEdgar ZellerRocco PacielloJürgen DeckerHartwig VossNorbert Mahr
    • C07C4550
    • C08G73/0206B01J31/1658B01J31/1805B01J2231/321B01J2531/80B01J2531/822C07C45/50Y02P20/584C07C47/02
    • 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.
    • 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。
    • 6. 发明申请
    • Method for the continuous production of aldehydes
    • 连续生产醛的方法
    • US20070004939A1
    • 2007-01-04
    • US10575843
    • 2004-10-14
    • Martin VollandThomas MackewitzWolfgang AhlersAnsgar SchaferWolfgang RichterRocco Paciello
    • Martin VollandThomas MackewitzWolfgang AhlersAnsgar SchaferWolfgang RichterRocco Paciello
    • C07C45/50
    • B01J31/186B01J2231/321B01J2531/822C07C45/50C07C47/02
    • The invention relates to a method for the continuous production of aldehydes comprising between 5 and 21 carbon atoms, by the isomerising hydroformylation in a homogenous phase of olefin compositions comprising between 4 and 20 carbon atoms and containing α-olefins and olefins with internal double bonds, by means of a synthesis gas, in the presence of a homogeneous rhodium catalyst that is complexed with an organophosphorus ligand containing oxygen atoms and/or nitrogen atoms and a free ligand. Said production is carried out at high temperature and high pressure in a multi-stage reaction system consisting of at least two reaction zones. According to said method, the olefin composition is first reacted in a first reaction zone or a group of several first reaction zones at a total pressure of between 10 and 40 bar, using a synthesis gas with a CO/H2 molar ratio of between 4:1 and 1:2 until a 40 to 95% conversion of the α-olefins is obtained. The hydroformylation product from the first reaction zone or group of several first reaction zones is then reacted in a subsequent reaction zone or group of several reaction zones at a total pressure of between 5 and 30 bar, using a synthesis gas with a CO/H2 molar ratio of between 1:4 and 1:1000. The total pressure in the subsequent reaction zone or zones is respectively 1 to (G1−Gf) bar lower than that of the preceding reaction zone, whereby G1 represents the total pressure in the respective preceding reaction zone and Gf represents the total pressure in the respective reaction zone that succeeds said first reaction zone or zones, with the proviso that the difference between G1 and Gf is greater than 1 bar and the partial CO pressure in the subsequent reaction zone or zones is respectively lower than that of the preceding reaction zone.
    • 本发明涉及通过在包含4至20个碳原子并含有具有内部双键的α-烯烃和烯烃的烯烃组合物的均质相中的异构化加氢甲酰化来连续生产含有5至21个碳原子的醛的方法, 在与含有氧原子和/或氮原子的有机磷配体和游离配体络合的均匀的铑催化剂的存在下,通过合成气。 所述生产在由至少两个反应区组成的多级反应体系中在高温高压下进行。 根据所述方法,首先使用具有CO / H 2 O 2的合成气在第一反应区或一组几个第一反应区中以10至40巴的总压力反应烯烃组合物, 的摩尔比在4:1和1:2之间,直到获得40-95%的α-烯烃转化率。 然后使用具有CO / H 2的合成气使来自第一反应区或几个第一反应区的组的加氢甲酰化产物在随后的反应区或几个反应区的组中以5至30巴的总压力反应, 1摩尔比为1:4-1:1000。 后续反应区域或区域中的总压力分别比前述反应区域低1〜(G1-Gf)巴,由此G1表示前述反应区域中的总压力,Gf表示相应的 所述第一反应区或区域成功的反应区,条件是G 1和G f之间的差大于1巴,并且后续反应区或区中的部分CO压力分别低于前述反应区。