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    Process for preparing essentially formic acid-free N-alkyl-N′-methylalkyleneureas
    1.
    发明授权
    Process for preparing essentially formic acid-free N-alkyl-N′-methylalkyleneureas 有权
    基本上不含无甲酸的N-烷基-N'-甲基亚烷基脲的方法

    公开(公告)号：US06554966B1

    公开(公告)日：2003-04-29

    申请号：US09603195

    申请日：2000-06-26

    申请人： Andreas Kramer ,  Johann-Peter Melder ,  Heinz Rütter ,  Günter Riewe ,  Wolfgang Siegel ,  Hans-Jürgen Weyer

    发明人： Andreas Kramer ,  Johann-Peter Melder ,  Heinz Rütter ,  Günter Riewe ,  Wolfgang Siegel ,  Hans-Jürgen Weyer

    IPC分类号： B01D300

    CPC分类号： C07D239/10

    摘要： The invention relates to a process for preparing essentially formic acid-free N-alkyl-N′-methylalkyleneureas of the formula with R1=H or CH3, R2=CnH2n+1 with n=1-4 and x=0 or 1, from the corresponding alkyleneureas by reaction with monomeric or polymerized formaldehyde in the presence of formic acid. This entails feeding the mixture, obtained in the reaction, of N-alkyl-N′-methylalkyleneurea and formic acid to the upper region of a distillation column, distilling without further additions and removing essentially formic acid-free N-alkyl-N′-methylalkyleneurea in the lower region of the column. The process parameters are set so that the pressure in the upper region of the column is at a higher level than in the lower region of the column, and the difference in pressure between the upper and lower regions of the column is from 10 to 100 mbar, and the temperature in the lower region of the column is higher than in the upper region of the column, with the difference in temperature between the upper and lower regions of the column being from 40° C. to 210° C.

    摘要翻译： 本发明涉及一种制备基本上无甲酸的N-烷基-N'-甲基亚烷基脲的方法，其中R1 = H或CH3，R2 = CnH2n + 1，其中n = 1-4和x = 0或1， 通过在甲酸存在下与单体或聚合的甲醛反应来制备相应的亚烷基脲。 这需要将N-烷基-N'-甲基亚烷基脲和甲酸的反应混合物加入到蒸馏塔的上部区域，无需进一步添加即可蒸馏除去基本上不含甲酸的N-烷基-N'- 甲基亚烷基脲在柱的下部区域。 设定工艺参数使得塔的上部区域中的压力处于比塔的下部区域更高的水平，并且塔的上部和下部区域之间的压力差为10至100mbar ，塔的下部区域的温度高于塔的上部区域，塔的上部和下部区域之间的温度差为40℃〜210℃。

    Processes for preparing ethylamines
    2.
    发明授权
    Processes for preparing ethylamines 失效
    制备乙胺的方法

    公开(公告)号：US07642382B2

    公开(公告)日：2010-01-05

    申请号：US11908820

    申请日：2006-03-14

    申请人： Till Gerlach ,  Frank Haese ,  Anton Meier ,  Johann-Peter Melder ,  Heinz Rütter

    发明人： Till Gerlach ,  Frank Haese ,  Anton Meier ,  Johann-Peter Melder ,  Heinz Rütter

    IPC分类号： C07C209/16

    CPC分类号： C07C209/16 ,  C07C211/05

    摘要： Processes comprising: (a) providing a first reactant comprising a bioethanol; and (b) reacting the first reactant with a second reactant comprising a component selected from the group consisting of ammonia, primary amines, secondary amines and mixtures thereof, in the presence of hydrogen and a catalytically effective amount of a heterogeneous hydrogenation/dehydrogenation catalyst to form an ethylamine; wherein the catalyst has been activated at a temperature of 100 to 500° C. for at least 25 minutes; wherein prior to activation the catalyst comprises: (i) 20 to 65% by weight of a support material comprising one or both of zirconium dioxide (ZrO2) and aluminum oxide (Al2O3), (ii) 1 to 30% by weight of oxygen-comprising compounds of copper, calculated as CuO, and (iii) 21 to 70% by weight of oxygen-comprising compounds of nickel, calculated as NiO; and wherein after activation the catalyst has a CO uptake capacity of >110 μmol of CO/g of the catalyst.

    摘要翻译： 方法包括：（a）提供包含生物乙醇的第一反应物; 和（b）使第一反应物与包含选自氨，伯胺，仲胺及其混合物的组分的第二反应物在氢气和催化有效量的非均相氢化/脱氢催化剂存在下反应至 形成乙胺; 其中所述催化剂已经在100至500℃的温度下活化至少25分钟; 其中在活化之前，催化剂包括：（i）20至65重量％的包含二氧化锆（ZrO 2）和氧化铝（Al 2 O 3）中的一种或两种的载体材料，（ii）1至30重量％ 包括以CuO计算的铜化合物，和（iii）以NiO计算的含有21重量％的含氧化合物的镍; 并且其中在活化后，催化剂的CO吸收能力为> 110molol的CO / g催化剂。

    Method for producing an ethylamine
    3.
    发明申请
    Method for producing an ethylamine 失效
    乙胺的制造方法

    公开(公告)号：US20090234163A1

    公开(公告)日：2009-09-17

    申请号：US11908820

    申请日：2006-03-14

    申请人： Till Gerlach ,  Frank Haese ,  Anton Meier ,  Johann-Peter Melder ,  Heinz Rütter

    发明人： Till Gerlach ,  Frank Haese ,  Anton Meier ,  Johann-Peter Melder ,  Heinz Rütter

    IPC分类号： C07C209/16

    CPC分类号： C07C209/16 ,  C07C211/05

    摘要： Processes comprising: (a) providing a first reactant comprising a bioethanol; and (b) reacting the first reactant with a second reactant comprising a component selected from the group consisting of ammonia, primary amines, secondary amines and mixtures thereof, in the presence of hydrogen and a catalytically effective amount of a heterogeneous hydrogenation/dehydrogenation catalyst to form an ethylamine; wherein the catalyst has been activated at a temperature of 100 to 500° C. for at least 25 minutes; wherein prior to activation the catalyst comprises: (i) 20 to 65% by weight of a support material comprising one or both of zirconium dioxide (ZrO2) and aluminum oxide (Al2O3), (ii) 1 to 30% by weight of oxygen-comprising compounds of copper, calculated as CuO, and (iii) 21 to 70% by weight of oxygen-comprising compounds of nickel, calculated as NiO; and wherein after activation the catalyst has a CO uptake capacity of >110 μmol of CO/g of the catalyst.

    摘要翻译： 方法包括：（a）提供包含生物乙醇的第一反应物; 和（b）使第一反应物与包含选自氨，伯胺，仲胺及其混合物的组分的第二反应物在氢气和催化有效量的非均相氢化/脱氢催化剂存在下反应至 形成乙胺; 其中所述催化剂已经在100至500℃的温度下活化至少25分钟; 其中在活化之前，催化剂包括：（i）20至65重量％的包含二氧化锆（ZrO 2）和氧化铝（Al 2 O 3）中的一种或两种的载体材料，（ii）1至30重量％ 包括以CuO计算的铜化合物，和（iii）以NiO计算的含有21重量％的含氧化合物的镍; 并且其中在活化后，催化剂的CO吸收能力为> 110molol的CO / g催化剂。

    Catalyst and method for producing polytetrahydrofuran
    5.
    发明授权
    Catalyst and method for producing polytetrahydrofuran 失效
    催化剂和生产聚四氢呋喃的方法

    公开(公告)号：US06274700B1

    公开(公告)日：2001-08-14

    申请号：US09555872

    申请日：2000-06-08

    申请人： Karsten Eller ,  Heinz Rütter ,  Michael Hesse ,  Rainer Becker

    发明人： Karsten Eller ,  Heinz Rütter ,  Michael Hesse ,  Rainer Becker

    IPC分类号： C08G5968

    CPC分类号： C08G65/2657 ,  C08G65/20

    摘要： In a process for preparing polytetrahydrofuran, polytetrahydrofuran copolymers or diesters or monoesters thereof by polymerization of tetrahydrofuran in the presence of at least one telogen and/or comonomer over acid-activated montmorillonite catalysts, the montmorillonite catalyst after acid activation has a ratio of montmorillonite structure to the sum of muscovite and kaolin structures, determined from the intensities of the reflections at 2&thgr;=5.5° for montmorillonite, 2&thgr;=9.0° for muscovite and 2&thgr;=12.5° for kaolin measured in the X-ray powder pattern, of at least 5:1.

    摘要翻译： 在通过在酸活化蒙脱石催化剂上存在至少一种环糊精和/或共聚单体的情况下通过四氢呋喃聚合制备聚四氢呋喃，聚四氢呋喃共聚物或二酯或其单酯的方法中，酸活化后的蒙脱石催化剂具有蒙脱石结构与 根据X射线粉末图案测定的蒙脱石的2θ= 5.5°的反射强度，白云母的2θ= 9.0°，高岭土的2θ= 12.5°，确定白云母和高岭土结构的总和为5： 1。

    METHOD FOR THE PRODUCTION OF N,N-DIMETHYLACETAMIDE (DMAC)
    7.
    发明申请
    METHOD FOR THE PRODUCTION OF N,N-DIMETHYLACETAMIDE (DMAC) 有权
    制备N，N-二甲基乙酰胺（DMAC）的方法

    公开(公告)号：US20100130781A1

    公开(公告)日：2010-05-27

    申请号：US11720770

    申请日：2005-12-03

    申请人： Horst Grafmans ,  Steffen Maas ,  Alexander Weck ,  Heinz Rütter ,  Michael Schulz ,  Karl-Heinz Roß

    发明人： Horst Grafmans ,  Steffen Maas ,  Alexander Weck ,  Heinz Rütter ,  Michael Schulz ,  Karl-Heinz Roß

    IPC分类号： C07C231/02

    CPC分类号： C07C231/02 ,  C07C233/05

    摘要： A process for preparing N,N-dimethylacetamide (DMAC) by continuously reacting methyl acetate (MeOAc) with dimethylamine (DMA) in the presence of a basic catalyst, wherein MeOAc is used in the form of a methanolic solution and the continuous distillative workup is effected in such a way that methanol and any other low boilers are initially removed overhead in a column A and the bottom effluent of column A is fed to a column B in which DMAC is removed via a side draw a purity of ≧99.7% by weight.

    摘要翻译： 在碱性催化剂存在下，通过使乙酸甲酯（MeOAc）与二甲胺（DMA）连续反应制备N，N-二甲基乙酰胺（DMAC）的方法，其中MeOAc以甲醇溶液的形式使用，连续蒸馏处理是 以甲醇和任何其他低沸点物最初在塔A中塔顶除去并且塔A的底部流出物进料到其中通过侧面抽取DMAC的柱B，其中汲取的纯度为≥99.7重量％ 。

    Process for fractionating water-containing crude amine mixtures from amine synthesis
    8.
    发明授权
    Process for fractionating water-containing crude amine mixtures from amine synthesis 有权
    从胺合成分馏含水粗胺混合物的方法

    公开(公告)号：US06986833B2

    公开(公告)日：2006-01-17

    申请号：US10272011

    申请日：2002-10-17

    申请人： Andreas Wölfert ,  Heinz Rütter ,  Stefan Rittinger ,  Mark Wehinger ,  Aurelie Alemany ,  Willi Schmidt

    发明人： Andreas Wölfert ,  Heinz Rütter ,  Stefan Rittinger ,  Mark Wehinger ,  Aurelie Alemany ,  Willi Schmidt

    IPC分类号： B01D3/14 ,  C07C209/84

    CPC分类号： C07D295/03 ,  C07C209/86 ,  C07D207/04 ,  C07D211/04 ,  Y10S203/20 ,  C07C211/04 ,  C07C211/08

    摘要： An amine-containing mixture containing one or more amines, water, low-boilers and optionally high-boilers is fractionated by a process having the steps (iii) and (iv) and optionally the steps (i), (ii) and (v): (i) a (first) low-boiler fraction is separated off from the amine-containing mixture by distillation, (ii) a (first) high-boiler fraction is separated off from the amine-containing mixture by distillation, (iii) the amine-containing mixture is extracted with sodium hydroxide solution, producing an aqueous, sodium-hydroxide-containing first phase and an aqueous-organic, amine-, (further) low-boiler- and possibly (further) high-boiler-containing second phase, (iv) the aqueous-organic second phase, is distilled, producing essentially anhydrous amine as bottom-phase take off or sidestream takeoff in the stripping part of the distillation column, an amine/water azeotrop as sidestream takeoff in the enrichment part of the column and a (further) low-boiler fraction as overhead takeoff, and recycling the amine/water azeotrop to the extraction step (iii), (v) the essentially anhydrous amine is further purified of fractionated.

    摘要翻译： 含有一种或多种胺，水，低锅炉和任选的高锅炉的含胺混合物通过具有步骤（iii）和（iv）和任选的步骤（i），（ii）和（v ）：（i）（第一）低沸点馏分通过蒸馏从含胺混合物中分离出来，（ii）通过蒸馏将（第一）高沸点级分馏分与含胺混合物分离，（iii） ）将含胺混合物用氢氧化钠溶液萃取，产生含氢氧化钠的含水氢氧化物的第一相和含水有机胺，（进一步）低沸点和可能（进一步）含高沸点的 第二相，（iv）蒸馏有机相第二相，在蒸馏塔的汽提部分中产生基本上无水的胺作为底部脱气或侧流起飞，在富集部分中作为侧流起飞的胺/水共沸物 的柱和另外的低沸点馏分作为架空起飞， 并将胺/水共沸物再循环至提取步骤（iii），（v）将基本上无水的胺进一步纯化分离。

    Method for the production of N,N-dimethylacetamide (DMAC)
    10.
    发明授权
    Method for the production of N,N-dimethylacetamide (DMAC) 有权
    制备N，N-二甲基乙酰胺（DMAC）的方法

    公开(公告)号：US08193390B2

    公开(公告)日：2012-06-05

    申请号：US11720770

    申请日：2005-12-03

    申请人： Horst Grafmans ,  Steffen Maas ,  Alexander Weck ,  Heinz Rütter ,  Michael Schulz ,  Karl-Heinz Roβ

    发明人： Horst Grafmans ,  Steffen Maas ,  Alexander Weck ,  Heinz Rütter ,  Michael Schulz ,  Karl-Heinz Roβ

    IPC分类号： C07C231/02

    CPC分类号： C07C231/02 ,  C07C233/05

    摘要： A process for preparing N,N-dimethylacetamide (DMAC) by continuously reacting methyl acetate (MeOAc) with dimethylamine (DMA) in the presence of a basic catalyst, wherein MeOAc is used in the form of a methanolic solution and the continuous distillative workup is effected in such a way that methanol and any other low boilers are initially removed overhead in a column A and the bottom effluent of column A is fed to a column B in which DMAC is removed via a side draw a purity of ≧99.7% by weight.

    摘要翻译： 在碱性催化剂存在下，通过使乙酸甲酯（MeOAc）与二甲胺（DMA）连续反应制备N，N-二甲基乙酰胺（DMAC）的方法，其中MeOAc以甲醇溶液的形式使用，连续蒸馏处理是 以甲醇和任何其他低沸点物最初在塔A中塔顶除去并且塔A的底部流出物进料到其中通过侧面抽取DMAC的柱B，其中汲取的纯度为≥99.7重量％ 。