Hydrogenation of aldehydes
    1.
    发明授权
    Hydrogenation of aldehydes 失效
    醛的氢化

    公开(公告)号:US06350923B1

    公开(公告)日:2002-02-26

    申请号:US09472798

    申请日:1999-12-28

    IPC分类号: C07C29141

    CPC分类号: C07C29/141 C07C31/20

    摘要: A dialdehyde, trialdehyde or tetraldehyde or at least two thereof as aldehyde are hydrogenated by bringing into contact at least: the aldehyde; a catalyst comprising at least one metal selected from the group consisting of nickel, cobalt and copper in chemically bound and/or elemental form; hydrogen; at a gas pressure in the range from 5 to 350 bar and a temperature in the range from 40 to 300° C.

    摘要翻译: 二醛,戊醛或四醛或其至少两个作为醛被氢化,至少与醛接触:包含至少一种选自镍,钴和铜的化学结合和/或元素的金属的催化剂 形式;氢气;在5至350巴的气体压力和40至300℃的温度范围内。

    Preparation of pentanediols from alkoxydihydropyrans
    2.
    发明授权
    Preparation of pentanediols from alkoxydihydropyrans 失效
    从烷氧基二氢吡喃制备戊二醇

    公开(公告)号:US06403845B1

    公开(公告)日:2002-06-11

    申请号:US09625487

    申请日:2000-07-25

    IPC分类号: C07C2700

    摘要: are prepared by single-stage reaction of alkoxydihydropyrans of the formula (II) with water and hydrogen in the presence of a catalyst comprising oxides of nickel, zirconium and copper. In the formulae (I) and (II), R, R′, R″, R′″ can be identical or different and are each hydrogen or a linear or branched saturated hydrocarbon radical having from 1 to 20 carbon atoms in which the hydrocarbon chain may contain O, S and N as heteroatoms and which may be monosubstituted or polysubstituted by hydroxy, thiol or amino groups or halogens.

    摘要翻译: 在式(I)和(II)的催化剂存在下,通过式(II)的烷氧基​​二氢吡喃与水和氢的单步反应制备。在式(I)和(II)中,R,R' R“,R”可以相同或不同,并且各自为氢或具有1至20个碳原子的直链或支链饱和烃基,其中烃链可以含有O,S和N作为杂原子,并且其可以是 被羟基,硫醇或氨基或卤素单取代或多取代。

    Process for producing N-substituted 3-hydroxypyrazoles
    4.
    发明授权
    Process for producing N-substituted 3-hydroxypyrazoles 失效
    制备N-取代的3-羟基吡唑的方法

    公开(公告)号:US5922886A

    公开(公告)日:1999-07-13

    申请号:US981637

    申请日:1998-01-08

    CPC分类号: C07D401/04 C07D231/22

    摘要: N-substituted 3-hydroxypyrazoles of the formula I ##STR1## where R.sup.1 is unsubstituted or substituted alkyl, aryl or heteroaryl and R.sup.2, R.sup.3 is hydrogen, cyano, halogen or unsubstituted or substituted alkyl, aryl or heteroaryl, are prepared by oxidation of a corresponding pyrazolidin-3-one with atmospheric oxygen in the presence of a metal salt in an essentially pH-neutral medium.

    摘要翻译: PCT No.PCT / EP96 / 02891 Sec。 371日期1998年1月8日 102(e)1998年1月8日PCT PCT 1996年7月2日PCT公布。 公开号WO97 / 03969 日期1997年2月6日公知的N-取代的3-羟基吡唑其中R1是未取代的或取代的烷基,芳基或杂芳基,R2,R3是氢,氰基,卤素或未取代或取代的烷基,芳基或杂芳基,是通过氧化 的相应的吡唑烷-3-酮与大气中的氧在金属盐存在下在基本上为pH-中性的介质中。

    Preparation of polytetrahydrofuran
    5.
    发明授权
    Preparation of polytetrahydrofuran 失效
    聚四氢呋喃的制备

    公开(公告)号:US5773648A

    公开(公告)日:1998-06-30

    申请号:US793987

    申请日:1997-03-07

    摘要: A process for the preparation of polytetrahydrofuran or polytetrahydrofuran monoesters of C.sub.1 -C.sub.10 monocarboxylic acids by the polymerization of tetrahydrofuran over a heterogeneous catalyst in the presence of one of the telogens water, 1,4-butanediol or polytetrahydrofuran having a molecular weight of from 200 to 700 dalton or a C.sub.1 -C.sub.10 monocarboxylic acid or mixtures of these telogens, wherein a supported catalyst is used as catalyst, which contains a catalytically active amount of an oxygen-containing tungsten or molybdenum compound or mixtures of these compounds on an oxidic support material and which was calcined at temperatures ranging from 500.degree. to 1000.degree. C. following the application of the precursor compounds of said oxygen-containing molybdenum and/or tungsten compounds to the support material precursor.

    摘要翻译: PCT No.PCT / EP95 / 03651 Sec。 371日期1997年3月10日 102(e)1997年3月10日PCT PCT 1995年9月21日PCT公布。 公开号WO96 / 09335 日期:1996年3月28日一种通过四氢呋喃在多相催化剂上的存在下,在一种具有分子量的四氢呋喃水,1,4-丁二醇或聚四氢呋喃的存在下,通过四氢呋喃的聚合制备C1-C10单羧酸的聚四氢呋喃或聚四氢呋喃单酯的方法 重量为200至700道尔顿或C1-C10单羧酸或其混合物,其中使用负载催化剂作为催化剂,其含有催化活性量的含氧钨或钼化合物或这些化合物的混合物在 氧化载体材料,并且在将所述含氧钼和/或钨化合物的前体化合物施加到载体材料前体之后,在500℃至1000℃的温度下煅烧。

    Method for producing halogen-free reactive polyisobutene
    6.
    发明授权
    Method for producing halogen-free reactive polyisobutene 失效
    生产无卤素的反应性聚异丁烯的方法

    公开(公告)号:US06441110B1

    公开(公告)日:2002-08-27

    申请号:US09367194

    申请日:1999-08-06

    IPC分类号: C08F424

    摘要: A process for preparing halogen-free, reactive polyisobutene having a terminal double bond content of more than 50 mol % and an average molecular weight Mn of 280-10000 dalton by the cationic polymerization in the liquid phase of isobutene or hydrocarbon mixtures comprising isobutene comprises polymerizing at from −30° C. to +40° C. in the presence of a heterogeneous polymerisation catalyst comprising one or more oxides of the elements of transition groups V and VI of the Periodic Table of the Elements or in the presence of a heterogeneous polymerization catalyst comprising one or more oxidic compounds of one or more elements of transition groups V and VI of the Periodic Table of the Elements supported on a non-zeolitic oxidic support material which is not an oxygen-containing zirconium compound, the catalyst not containing a technically effective amount of halogen.

    摘要翻译: 通过在异丁烯或包含异丁烯的烃混合物的液相中的阳离子聚合制备末端双键含量大于50mol%,平均分子量Mn为280-10000dalton的无卤活性聚异丁烯的方法包括聚合 在-30℃至+ 40℃下,在包含元素周期表的过渡基团V和VI的元素的一种或多种氧化物的非均相聚合催化剂的存在下,或在非均相聚合 催化剂包含负载在不是含氧锆化合物的非沸石氧化载体材料上的元素周期表的一个或多个过渡基团V和VI元素的一种或多种氧化化合物,该催化剂不含技术上 有效量的卤素。

    Catalyst and method for producing polytetrahydrofuran
    7.
    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

    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 decoloring tetrahydrofuran polymers or copolymers
    8.
    发明授权
    Method for decoloring tetrahydrofuran polymers or copolymers 失效
    四氢呋喃聚合物或共聚物脱色方法

    公开(公告)号:US06252039B1

    公开(公告)日:2001-06-26

    申请号:US09402895

    申请日:1999-10-13

    IPC分类号: C08F600

    CPC分类号: C08G65/20 C08G65/30

    摘要: A process for decolorizing polymers or copolymers which are obtained by cationic polymerization of tetrahydrofuran or of tetrahydrofuran and alkylene oxide, in the presence or absence of a telogen, comprises a) first, if desired, removing the low-boiling components by vacuum distillation or extraction and b) heating the remaining polymer or copolymer in the presence of at least one auxiliary selected from the group consisting of solid oxides and/or sheet silicates to from 20 to 150° C.

    摘要翻译: 在存在或不存在季铵盐时,通过四氢呋喃或四氢呋喃和环氧烷的阳离子聚合获得的聚合物或共聚物的脱色方法包括:a)如果需要,首先通过真空蒸馏或萃取除去低沸点组分 在选自固体氧化物和/或片状硅酸盐的至少一种辅助剂存在下将剩余的聚合物或共聚物加热至20-150℃。

    Method for producing polytetrahydrofuran
    9.
    发明授权
    Method for producing polytetrahydrofuran 失效
    聚四氢呋喃的制备方法

    公开(公告)号:US06124368A

    公开(公告)日:2000-09-26

    申请号:US445700

    申请日:1999-12-13

    摘要: The invention relates to a method for producing polytetrahydrofuran, polytetrahydrofuran copolymers, diesters or monoesters of these polymers by polymerization of tetrahydrofuran in the presence of at least one telogene and/or comonomer on a sulfate-containing heterogeneous supported catalyst. A sulfate-containing heterogeneous supported catalyst is used containing at least one metal sulfate, metal hydrogen sulfate, metal oxide sulfate or mixtures thereof.

    摘要翻译: PCT No.PCT / EP98 / 05319 Sec。 371 1999年12月13日第 102(e)日期1999年12月13日PCT提交1998年6月10日PCT公布。 第WO98 / 58982号公报 日本1998年12月30日本发明涉及通过在含硫酸盐的非均相负载型催化剂的存在下,在至少一种前体和/或共聚单体存在下,四氢呋喃的聚合制备聚四氢呋喃,聚四氢呋喃共聚物,这些聚合物的聚四氢呋喃共聚物,二酯或单酯的方法。 使用含硫酸盐的非均相负载型催化剂,其含有至少一种金属硫酸盐,金属硫酸氢盐,金属氧化物硫酸盐或其混合物。