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    Production of carboxylic acids from organic formate esters using rhodium complex catalysts
    12.
    发明授权
    Production of carboxylic acids from organic formate esters using rhodium complex catalysts 失效
    使用铑配合物催化剂从有机甲酸酯生产羧酸

    公开(公告)号：US4927967A

    公开(公告)日：1990-05-22

    申请号：US794603

    申请日：1985-11-06

    申请人： Richard W. Wegman

    发明人： Richard W. Wegman

    IPC分类号： C07C51/12 ,  C07C51/353

    CPC分类号： C07C51/12 ,  C07C51/353

    摘要： A process for the production of organic carboxylic acids by the catalytic reaction of organic formate esters in contact with carbon monoxide and a homogeneous catalyst system of rhodium metal atom, a phosphorus containing ligand in which there is present at least one oxo oxygen atom attached to a phosphorus atom or a carbon atom to form a Z group and the ##STR1## group in said Z group is located at least one carbon atom removed and preferably from 2-4 carbon atoms removed from the phosphorus atom of the molecules represented by the formulas ##STR2## and a halogen source, under mild reaction conditions, wherein R' is H, aryl, alkaryl, aralkyl or alkyl, and wherein 1 or more of said R' groups can be substituted with a Z group but not more than 3 of said R' groups in the molecule are so substituted; a is an integer from 0-4; b is an integer from 0-3; and Z is P(O)R'R'; --C(O)OR" or C(O)R", wherein R" is R'.

    摘要翻译： 通过与一氧化碳接触的有机甲酸酯的催化反应和铑金属原子的均相催化剂体系（含磷配体）生产有机羧酸的方法，其中存在至少一个氧代氧原子连接到 磷原子或碳原子以形成Z基团，并且所述Z基团中的基团位于除去的至少一个碳原子，优选地从分子式表示的分子的磷原子上除去2-4个碳原子， （VI）和卤素源，在温和的反应条件下，其中R'是H，芳基，烷芳基，芳烷基或烷基，并且其中1个或更多个所述R'基团可以被 分子中Z基团但不超过3个所述R'基团是如此取代的; a是0-4的整数; b是0-3的整数; Z为P（O）R'R'; -C（O）OR“或C（O）R”，其中R“为R'。

    Synthesis of aldehydes from alcohols
    14.
    发明授权
    Synthesis of aldehydes from alcohols 失效
    从醇合成醛

    公开(公告)号：US4594463A

    公开(公告)日：1986-06-10

    申请号：US695370

    申请日：1985-01-28

    申请人： Richard W. Wegman ,  Deborah S. Miller

    发明人： Richard W. Wegman ,  Deborah S. Miller

    IPC分类号： B01J31/18 ,  B01J31/24 ,  C07C45/49

    CPC分类号： C07C45/49 ,  B01J31/18 ,  B01J31/1805 ,  B01J31/1895 ,  B01J31/2404 ,  B01J31/2409 ,  C07C67/36 ,  B01J2531/822

    摘要： A catalyst has been found for the low pressure hydroformylation of alcohols to produce aldehydes. This catalyst consists of a rhodium containing compound, an iodide containing compound, and a chelating Group V compound, which is used alone or in combination with a monodentate, Group V compound.It is the first rhodium-based catalyst that generates acetaldehyde via hydroformylation of the methanol. The reaction is typically carried out at 160.degree.-180.degree. C. and 1000-2000 psi. The acetaldehyde rate and selectivity are 1-5 Mhr.sup.-1 and 50-75%. Conventional cobalt catalysts require operating pressures of at least 3000-6000 psi in order to obtain reasonable productivities.

    摘要翻译： 已经发现催化剂用于醇的低压加氢甲酰化以产生醛。 该催化剂由含铑化合物，含碘化物和螯合V族化合物组成，其单独使用或与单齿化合物V组合使用。 它是通过甲醇的加氢甲酰化产生乙醛的第一种基于铑的催化剂。 反应通常在160-180℃和1000-2000psi进行。 乙醛速率和选择性为1-5Mhr-1和50-75％。 常规的钴催化剂需要至少3000-6000psi的操作压力以获得合理的生产率。

    Gas phase hydroformylation process
    16.
    发明授权
    Gas phase hydroformylation process 有权
    气相加氢甲酰化过程

    公开(公告)号：US08586800B2

    公开(公告)日：2013-11-19

    申请号：US13499317

    申请日：2010-10-06

    申请人： Richard W. Wegman

    发明人： Richard W. Wegman

    IPC分类号： C07C45/50

    CPC分类号： C07F9/65746 ,  C07B41/06 ,  C07C45/50 ,  C07F9/145 ,  C07C47/02

    摘要： A gas phase catalytic hydroformylation process for producing at least one aldehyde product in the presence of a transition metal-ligand complex hydroformylation catalyst and water vapor. Surprisingly, catalyst activity can be sustained by having traces of water vapor in the feed stream. Additionally, additional ligand can be added to replace lost ligand to maintain activity. In addition, it has been found that treatment of the catalyst with a buffer can rejuvenate catalyst activity.

    摘要翻译： 一种用于在过渡金属 - 配体络合物加氢甲酰化催化剂和水蒸气存在下生产至少一种醛产物的气相催化加氢甲酰化方法。 令人惊讶的是，通过在进料流中具有痕量的水蒸气可以维持催化剂活性。 另外，可以加入另外的配体以代替丢失的配体以维持活性。 此外，已经发现用缓冲液处理催化剂可以恢复催化剂活性。