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    Preparation of acrolein by heterogeneously catalyzed partial gas phase oxidation of propene
    32.
    发明授权
    Preparation of acrolein by heterogeneously catalyzed partial gas phase oxidation of propene 有权
    通过丙烯的非均相催化部分气相氧化制备丙烯醛

    公开(公告)号：US07208636B2

    公开(公告)日：2007-04-24

    申请号：US10974831

    申请日：2004-10-28

    申请人： Jochen Petzoldt ,  Klaus Joachim Mueller-Engel

    发明人： Jochen Petzoldt ,  Klaus Joachim Mueller-Engel

    IPC分类号： C07C45/35

    CPC分类号： B01J35/026 ,  B01J23/8885 ,  B01J35/0006 ,  C07C45/35 ,  C07C47/22

    摘要： Acrolein is prepared by a process of heterogeneous catalyzed partial gas phase oxidation, by passing a starting reaction gas mixture which comprises propene, molecular oxygen and at least one inert gas, in which the molecular oxygen to propene (O2:C3H6) mole ratio is ≧1, and carbon dioxide and saturated hydrocarbons together in a total amount of at most 15 mol %, at elevated temperature and at an hourly space velocity on the fixed catalyst bed of propene present in the starting reaction gas mixture of ≧120 l (STP)/l·h through a fixed catalyst bed whose catalysts are comprised of annular unsupported catalysts whose active component is at least one multimetal oxide of formula I, Mo12WaCobFecBidSieKfOn  (I) wherein a ranges from ≧1 to ≦3, b ranges from ≧3 to ≦8, c ranges from ≧1 to ≦4, d ranges from ≧0.5 to ≦1.5, e ranges from ≧0 to ≦10, and f ranges from ≧0 to ≦0.2 and n is a number which is determined by the valency and frequency of the elements in the composition of formula I other than oxygen, in such a way that the propene conversion in single pass is ≧90 mol % and the associated selectivity of acrolein formation is ≧80 mol %, wherein, in the multimetal oxide composition of formula I, the following mole ratios are: Co/Fe=from 2 to 4 and Co/Mo=from 0.3 to 0.7.

    摘要翻译： 通过使含有丙烯，分子氧和至少一种惰性气体的起始反应气体混合物通过非均相催化的部分气相氧化的方法制备丙烯醛，其中分子氧与丙烯（O 2/2） >：C 3 H 6 H 6摩尔比> = 1，二氧化碳和饱和烃的总量在15升以下，总温度高达15摩尔％ 在催化剂由活性组分为至少一个多金属的环状无载体催化剂组成的固定催化剂床上，以> = 120l（STP）/ 1h的起始反应气体混合物存在于丙烯固定催化剂床上的小时空间速度 式I的氧化物，<？in-line-formula description =“In-line Formulas”end =“lead”？> Mo 12 B＆lt; B＆gt; （C 1 -C 6）（C 1 -C 6）（C 1 -C 6） I）<？in-line-formula description =“In-line Formulas”end =“tail”？>其中a的范围从> = 1到<= 3，b rang es从> = 3到<= 8，c的范围从> = 1到<= 4，d的范围从> = 0.5到<= 1.5，e的范围是从> = 0到<= 10，f的范围是> = 0 至<= 0.2，n是由除了氧以外的式I组成中的元素的化合价和频率确定的数，使得单程中的丙烯转化率> 90摩尔％，并且相关联的 丙烯醛形成的选择性为> = 80mol％，其中，在式I的多金属氧化物组合物中，以下摩尔比为：Co / Fe = 2〜4，Co / Mo = 0.3〜0.7。

    PROCESS FOR PREPARING (METH)ACRYLATES OF C17-ALCOHOL MIXTURES
    37.
    发明申请
    PROCESS FOR PREPARING (METH)ACRYLATES OF C17-ALCOHOL MIXTURES 有权
    制备C17-醇混合物（甲基）丙烯酸酯的方法

    公开(公告)号：US20110130582A1

    公开(公告)日：2011-06-02

    申请号：US12952732

    申请日：2010-11-23

    申请人： Virginie BETTE ,  Jochen Petzoldt ,  Boris Breitscheidel

    发明人： Virginie BETTE ,  Jochen Petzoldt ,  Boris Breitscheidel

    IPC分类号： C07C67/62 ,  C07C69/533

    CPC分类号： C07C69/54 ,  C07C67/08 ,  C08F220/12 ,  C08F220/18

    摘要： A process for preparing (meth)acrylates of C17-alcohol mixtures by reacting (meth)acrylic acid with a C17-alcohol mixture in the presence of at least one acidic catalyst and of at least one polymerization inhibitor and in the presence of a solvent which, with water, forms an azeotrope in which the esterification is performed in a reactor with a circulation evaporator, the azeotrope is distilled off and condensed, and the condensate splits into an aqueous phase and an organic phase, wherein the C17-alcohol mixture has a mean degree of branching (iso index) of 2.8 to 3.7.

    摘要翻译： 一种通过使（甲基）丙烯酸与C17-醇混合物在至少一种酸性催化剂和至少一种聚合抑制剂存在下和在溶剂存在下使C17-醇混合物反应制备（甲基）丙烯酸酯的方法， 与水形成共沸物，其中在具有循环蒸发器的反应器中进行酯化，将共沸物蒸馏并冷凝，并将冷凝物分成水相和有机相，其中C17-醇混合物具有 平均分枝度（iso指数）为2.8〜3.7。