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    Preparation of C10-C30-alkenes by partial hydrogenation of alkynes over fixed-bed supported palladium catalysts
    2.
    发明授权
    Preparation of C10-C30-alkenes by partial hydrogenation of alkynes over fixed-bed supported palladium catalysts 失效
    通过固定床负载的钯催化剂上的炔进行部分氢化制备C10-C30-烯烃

    公开(公告)号：US06365790B2

    公开(公告)日：2002-04-02

    申请号：US09734024

    申请日：2000-12-12

    申请人： Klaus Reimer ,  Gerd Kaibel ,  Ulrich Kammel ,  Franz Josef Bröcker ,  Andreas Ansmann ,  Heinz Etzrodt ,  Manfred Stroezel ,  Mathias Haake ,  Lothar Laupichler ,  Bernhard Bockstiegel

    发明人： Klaus Reimer ,  Gerd Kaibel ,  Ulrich Kammel ,  Franz Josef Bröcker ,  Andreas Ansmann ,  Heinz Etzrodt ,  Manfred Stroezel ,  Mathias Haake ,  Lothar Laupichler ,  Bernhard Bockstiegel

    IPC分类号： C07C2900

    CPC分类号： C07C29/17 ,  B01J23/44 ,  B01J23/50 ,  B01J35/04 ,  B01J35/06 ,  B01J37/0217 ,  B01J37/0225 ,  B01J37/08 ,  C07C5/09 ,  C07C2523/44 ,  C07C11/02 ,  C07C33/025 ,  C07C33/02

    摘要： Alkenes are prepared by partial hydrogenation of alkynes in the liquid phase at from 20 to 250° C. and hydrogen partial pressures of from 0.3 to 200 bar over fixed-bed supported palladium catalysts which are obtainable by heating the support material in the air, cooling, applying a palladium compound and, if required, additionally other metal ions for doping purposes, molding and processing to give monolithic catalyst elements, by a process in which A) alkynes of 10 to 30 carbon atoms are used as starting compounds, B) the palladium compound and, if required, the other metal ions are applied to the support material by impregnation of the heated and cooled support material with a solution containing palladium salts and, if required, other metal ions and subsequent drying, and C) from 10 to 2000 ppm of carbon monoxide (CO) are added to the hydrogenation gas or a corresponding amount of CO is allowed to form in the liquid phase by slight decomposition of a compound which is added to the reaction mixture and eliminates CO under the reaction conditions. The process is particularly advantageous if the partial hydrogenation is carried out in a tube reactor by the trickle-bed or liquid phase procedure with product recycling at cross-sectional loadings of from 20 to 500 m3/m2*h. The process is particularly suitable for the preparation of 3,7,11,15-tetramethyl-1-hexadecen-3-ol (isophytol), 3,7,11-trimethyl-l-dodecen-3-ol (tetrahydronerolidol), 3,7,11-trimethyl-1,4-dodecadien-3-ol, 3,7,11-trimethyl-1,6-dodecadien-3-ol (dihydronerolidol), 3,7-dimethyloct-1,6-dien-3-ol or 3,7-dimethyloct-1-en-3-ol from the corresponding alkynes.

    摘要翻译： 烯烃通过液相中炔烃在20至250℃的部分氢化和固定床负载的钯催化剂的0.3至200巴的氢分压来制备，其可通过加热空气中的载体材料，冷却 使用钯化合物，另外还需要另外的金属离子用于掺杂目的，通过使用10-30个碳原子的炔烃作为起始化合物的方法，模塑和加工以得到整体式催化剂元素，B）钯 如果需要，另外的金属离子通过用含有钯盐的溶液浸渍加热和冷却的载体材料以及如果需要的话其它金属离子并随后干燥而被施加到载体材料上，C）为10-2000ppm 的一氧化碳（CO）加入到氢化气体中，或者相应量的CO在液相中形成，通过轻微分解添加到真空中的化合物 并且在反应条件下消除CO。如果部分氢化在管式反应器中通过滴流床或液相方法进行，则该方法是特别有利的，其中产物回收的横截面负荷为20-500m 3 / m2 * h。 该方法特别适用于制备3,7,11,15-四甲基-1-十六碳烯-3-醇（异山梨糖醇），3,7,11-三甲基-1-十二碳烯-3-醇（四氢化吗啉醇），3 ，7,11-三甲基-1,4-十二碳二烯-3-醇，3,7,11-三甲基-1,6-十二碳二烯-3-醇（二氢吗啉醇），3,7-二甲基辛-1,6-二烯 - 3-醇或3,7-二甲基辛-1-烯-3-醇。

    Catalyst and process for preparing 2-buten-1-ol compounds
    6.
    发明授权
    Catalyst and process for preparing 2-buten-1-ol compounds 失效
    用于制备2-丁烯-1-醇化合物的催化剂和方法

    公开(公告)号：US06278031B1

    公开(公告)日：2001-08-21

    申请号：US09759688

    申请日：2001-01-16

    申请人： Franz Josef Bröcker ,  Werner Aquila ,  Klemens Flick ,  Gerd Kaibel ,  Ernst Langguth

    发明人： Franz Josef Bröcker ,  Werner Aquila ,  Klemens Flick ,  Gerd Kaibel ,  Ernst Langguth

    IPC分类号： C07C2700

    CPC分类号： B01J27/0573 ,  B01J23/44 ,  B01J27/0576 ,  B01J35/10 ,  C07C29/56 ,  C07C33/025

    摘要： The fixed-bed catalyst comprises palladium and selenium or tellurium or a mixture of selenium and tellurium on a silicon dioxide support and has a BET surface area of from 80 to 380 m2/g and a pore volume of from 0.6 to 0.95 cm3/g in the pore diameter range from 3 nm to 300 &mgr;m, with from 80 to 95% of the pore volume being in the pore diameter range from 10 to 100 nm. It is prepared by impregnating a silicon dioxide support with a solution of a palladium compound and a selenium compound or tellurium compound or a mixture of a selenium compound and a tellurium compound, drying it and reducing it in the presence of hydrogen. The catalyst is used, in particular, for isomerizing 3-buten-1-ol compounds.

    摘要翻译： 固定床催化剂包括钯和硒或碲或硒和碲的混合物在二氧化硅载体上，并且具有80至380m 2 / g的BET表面积和0.6至0.95cm 3 / g的孔体积 孔径范围为3nm至300μm，孔体积的80至95％在孔径范围为10至100nm。它是通过用钯化合物溶液浸渍二氧化硅载体和 硒化合物或碲化合物或硒化合物和碲化合物的混合物，将其干燥并在氢气存在下还原。使用该催化剂，特别是用于异构化3-丁烯-1-醇化合物。

    METHOD FOR PREVENTING FUMARIC ACID DEPOSITS IN THE PRODUCTION OF MALEIC ACID ANHYDRIDE
    8.
    发明申请
    METHOD FOR PREVENTING FUMARIC ACID DEPOSITS IN THE PRODUCTION OF MALEIC ACID ANHYDRIDE 审中-公开
    在制备马来酸酐时防止含氟酸沉积物的方法

    公开(公告)号：US20090143601A1

    公开(公告)日：2009-06-04

    申请号：US12300571

    申请日：2007-05-16

    申请人： Rolf Pinkos ,  Gerd Kaibel ,  Ellen Dahlhoff ,  Gunther Windecker ,  Jens Heimann

    发明人： Rolf Pinkos ,  Gerd Kaibel ,  Ellen Dahlhoff ,  Gunther Windecker ,  Jens Heimann

    IPC分类号： C07D307/60

    CPC分类号： C07C51/573 ,  C07C57/145

    摘要： The present invention provides a process for preventing fumaric acid deposits in the preparation of maleic anhydride, comprising the following steps:a) absorption of a C4-dicarboxylic acid or of a derivative from a crude product mixture into an organic solvent or water as an absorbent,b) removal of the C4-dicarboxylic acid or of a derivative from the absorbent,the absorbent thus recovered being catalytically hydrogenated fully or partly and recycled fully or partly into the absorption stage (a).

    摘要翻译： 本发明提供了一种在制备马来酸酐中防止富马酸沉积的方法，包括以下步骤：a）将C4-二羧酸或衍生物从粗产物混合物中吸收到作为吸收剂的有机溶剂或水中 b）从吸收剂中除去C4-二羧酸或衍生物，这样回收的吸收剂被完全或部分催化氢化，或者完全或部分地再循环到吸收阶段（a）中。

    Method for producing mixtures of 1,4-butanediol, tetrahydrofuran and &ggr;-butyrolactone
    9.
    发明授权
    Method for producing mixtures of 1,4-butanediol, tetrahydrofuran and &ggr;-butyrolactone 失效
    生产1,4-丁二醇，四氢呋喃和γ-丁内酯的混合物的方法

    公开(公告)号：US06433192B1

    公开(公告)日：2002-08-13

    申请号：US09673847

    申请日：2001-06-04

    申请人： Rolf Fischer ,  Gerd Kaibel ,  Rolf Pinkos ,  Ralf-Thomas Rahn

    发明人： Rolf Fischer ,  Gerd Kaibel ,  Rolf Pinkos ,  Ralf-Thomas Rahn

    IPC分类号： C07D30702

    CPC分类号： C07D315/00 ,  C07C29/149 ,  C07D307/08 ,  C07C31/207

    摘要： In a process for preparing 1,4-butanediol, tetrahydrofuran and &ggr;-butyrolactone by oxidation of butane to give a product stream comprising maleic anhydride, absorption of maleic anhydride from the product stream using a high-boiling alcohol to give a liquid absorption product comprising monoesters and diesters of maleic acid and also high-boiling alcohol, after-esterification of the liquid absorption product and subsequent hydrogenation of the after-esterified product in the liquid phase, the high-boiling alcohol is a polyhydric alcohol having a boiling point at atmospheric pressure of above 233° C. and the after-esterified product has an acid number of less than 30 mg KOH/g and a water content of less than 1% by weight.

    摘要翻译： 在通过丁烷氧化制备1,4-丁二醇，四氢呋喃和γ-丁内酯以产生包含马来酸酐的产物流的方法中，使用高沸点醇从产物流中吸收马来酸酐，得到液体吸收产物，其包含 马来酸的单酯和二酯以及高沸点醇，液体吸收产物的酯化和后期酯化产物在液相中的氢化后，高沸点醇是沸点在大气压下的多元醇 高于233℃的压力，后酯化产物的酸值小于30mg KOH / g，水含量小于1重量％。

    Method for producing 1,4-butanediol
    10.
    发明授权
    Method for producing 1,4-butanediol 有权
    生产1,4-丁二醇的方法

    公开(公告)号：US06350924B1

    公开(公告)日：2002-02-26

    申请号：US09673134

    申请日：2000-10-11

    申请人： Rolf Fischer ,  Gerd Kaibel ,  Rolf Pinkos ,  Ralf-Thomas Rahn

    发明人： Rolf Fischer ,  Gerd Kaibel ,  Rolf Pinkos ,  Ralf-Thomas Rahn

    IPC分类号： C07C2700

    CPC分类号： C07D315/00 ,  C07C29/177 ,  C07D307/08 ,  C07C31/207

    摘要： A process for preparing 1,4-butanediol and, if desired, &ggr;-butyrolactone and THF by oxidizing butane or benzene to form a product stream including maleic anhydride, absorbing maleic anhydride from the product stream with a high-boiling inert solvent in an absorption stage to give a liquid absorption product, esterifying the liquid absorption product with a C1-C5 esterifying alcohol in an esterification stage to form an esterification product comprising the corresponding diester and high-boiling inert solvent, then hydrogenating the esterification product to give a hydrogenation product which comprises the products of value, 1,4-butanediol and, if desired, &ggr;-butyrolactone and tetrahydrofuran and the esterifying alcohol and which is separated by distillation into the products of value and the esterifying alcohol, and recycling the esterifying alcohol to the esterification zone, which comprises separating the esterification product into the diester and the inert solvent by distillation under reduced pressure prior to the hydrogenation, recycling the inert solvent to the absorption stage, and hydrogenating the diester in the liquid phase over a fixed-bed catalyst.

    摘要翻译： 通过氧化丁烷或苯来制备1,4-丁二醇和（如果需要的话）γ-丁内酯和THF以形成包含马来酸酐的产物流的方法，在吸收中用高沸点惰性溶剂从产物流中吸收马来酸酐 阶段以得到液体吸收产物，在酯化阶段用C1-C5酯化醇酯化液体吸收产物以形成包含相应的二酯和高沸点惰性溶剂的酯化产物，然后氢化酯化产物得到氢化产物 其包括价值的产物，1,4-丁二醇，如果需要的话，γ-丁内酯和四氢呋喃和酯化醇，并通过蒸馏分离成产物和酯化醇，并将酯化醇再循环到酯化反应 其包括通过蒸馏分离酯化产物成二酯和惰性溶剂 在氢化之前在减压下进行反应，将惰性溶剂循环到吸收阶段，并在固定床催化剂中使液相中的二酯氢化。