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106 条记录 (耗时 0.04 秒)

    Recovery of phenol ligands during the production of isopulegol
    2.
    发明授权
    Recovery of phenol ligands during the production of isopulegol 有权
    在异丙醇的生产过程中苯酚配体的回收

    公开(公告)号：US08003829B2

    公开(公告)日：2011-08-23

    申请号：US12439325

    申请日：2007-08-31

    申请人： Gunnar Heydrich ,  Gabriele Gralla ,  Klaus Ebel ,  Marko Friedrich

    发明人： Gunnar Heydrich ,  Gabriele Gralla ,  Klaus Ebel ,  Marko Friedrich

    IPC分类号： C07C35/08 ,  C07C35/12 ,  C07C29/80

    CPC分类号： C07C29/80 ,  B01J31/0214 ,  B01J31/143 ,  B01J31/4015 ,  C07B2200/07 ,  C07C29/172 ,  C07C29/56 ,  C07C35/12 ,  C07C35/17 ,  C07C2601/14 ,  Y02P20/584

    摘要： The present invention relates to a method of working up an aluminum-containing reaction product from the production of isopulegol by cyclization of citronellal in the presence of complex compounds, comprising at least one ligand of the formula (I), where R1, R2, R3 are chosen from hydrogen, halogen, nitro, C1-C8-alkyl, C1-C8-alkoxy, di(C1-C4-alkyl)amino and aryl; R4, R5 are chosen from halogen, nitro, C1-C8-alkyl, C1-C8-alkoxy, di(C1-C4-alkyl)amino, aryl or heteroaryl; in which a) the reaction product is subjected to distillative separation to obtain an isopulegol-enriched top product and an isopulegol-depleted bottom product and b) the ligand of the formula (I) is separated off from the bottom product. Moreover, the invention relates to a method of producing isopulegol, and to a method of producing menthol.

    摘要翻译： 本发明涉及一种通过在复合化合物存在下环绕香茅醛来制备含铝反应产物的方法，所述复合化合物包含至少一种式（I）的配体，其中R1，R2，R3 选自氢，卤素，硝基，C 1 -C 8 - 烷基，C 1 -C 8 - 烷氧基，二（C 1 -C 4 - 烷基）氨基和芳基; R4，R5选自卤素，硝基，C1-C8-烷基，C1-C8-烷氧基，二（C1-C4-烷基）氨基，芳基或杂芳基; 其中a）将反应产物进行蒸馏分离，以获得富含异头翁醇的顶部产物和异胡列胆素的底部产物，和b）将式（I）的配体与底部产物分离。 此外，本发明涉及一种生产异胡母醇的方法和一种制备薄荷醇的方法。

    Catalytic composition and a process for oligomerizing ethylene, in particular to 1-hexene
    6.
    发明申请
    Catalytic composition and a process for oligomerizing ethylene, in particular to 1-hexene 有权
    催化组合物和使乙烯低聚的方法，特别是1-己烯

    公开(公告)号：US20010023281A1

    公开(公告)日：2001-09-20

    申请号：US09745441

    申请日：2000-12-26

    发明人： Dominique Commereuc ,  Sebastien Drochon ,  Lucien Saussine

    IPC分类号： B01J031/00 ,  C08F004/42 ,  B01J037/00 ,  C08F004/02 ,  C08F004/60

    CPC分类号： B01J31/2234 ,  B01J31/0214 ,  B01J31/143 ,  B01J31/34 ,  B01J2231/20 ,  B01J2531/62 ,  C07C2/30 ,  C07C2531/02 ,  C07C2531/14 ,  C08F10/00 ,  Y02P20/52 ,  C08F4/69

    摘要： A catalytic composition is obtained by mixing at least one chromium compound with at least one aryloxy compound of an element M selected from the group formed by magnesium, calcium, strontium and barium, with general formula M(RO)2-nXn, where RO is an aryloxy radical containing 6 to 80 carbon atoms, X is a halogen or a hydrocarbyl radical containing 1 to 30 carbon atoms and n is a whole number that can take values of 0 to 2, and with at least one aluminum compound selected from hydrocarbylaluminum compounds (tris(hydrocarbyl)-aluminum, chlorinated or brominated hydrocarbylaluminum compounds) and aluminoxanes. The catalytic composition can be used in an ethylene oligomerization process, in particular to produce 1-hexene.

    摘要翻译： 通过将至少一种铬化合物与选自由镁，钙，锶和钡形成的基团的至少一种芳氧基化合物与通式M（RO）2-nXn混合，得到催化组合物，其中RO为 含有6〜80个碳原子的芳氧基，X是卤素或含有1至30个碳原子的烃基，n是可以取0至2的整数，并且与至少一种选自烃基铝化合物的铝化合物 （三（烃基）铝，氯化或溴化烃基铝化合物）和铝氧烷。 催化组合物可用于乙烯低聚方法，特别是生产1-己烯。

    Method of hydrogenation of living polymer
    7.
    发明授权
    Method of hydrogenation of living polymer 失效
    活性聚合物的氢化方法

    公开(公告)号：US6020439A

    公开(公告)日：2000-02-01

    申请号：US13162

    申请日：1998-01-26

    申请人： Young-Hoon Ko ,  Hoo-Chae Kim

    发明人： Young-Hoon Ko ,  Hoo-Chae Kim

    IPC分类号： C08F4/64 ,  B01J31/02 ,  B01J31/22 ,  C08C19/02 ,  C08F8/04 ,  C08F297/04 ,  C08L53/02 ,  B01J31/00 ,  C08F293/00

    CPC分类号： B01J31/0212 ,  B01J31/0214 ,  B01J31/2226 ,  B01J31/2295 ,  C08C19/02 ,  C08F297/04 ,  C08F8/04 ,  C08L53/02 ,  C08L53/025 ,  B01J2231/645 ,  B01J2531/46

    摘要： A method for hydrogenating living polymers that include mainly conjugated double bond monomers and aromatic vinyl monomers. At least one conjugated diene compound is polymerized or copolymerized in an inert solvent by using a polymerization initiator of organic alkali metal. The produced polymer is contacted with hydrogen in the presence of a catalyst. The catalyst is formed of a cyclopentadienyl titanium compound represented by: ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are independently selected from halogen groups, C.sub.1 -C.sub.8 alkyl groups, C.sub.1 -C.sub.8 alkoxy groups, C.sub.6 -C.sub.20 aryloxy groups, C.sub.6 -C.sub.20 cycloalkyl groups, silyl groups, and carbonyl groups. A cocatalyst is provided of alkoxylithium compound represented by:R.sub.4 O--Liwherein R.sub.4 is a hydrocarbon. This cocatalyst selectively hydrogenates the unsaturated double bonds in the conjugated diene units of the living polymer.

    摘要翻译： 用于氢化主要包含共轭双键单体和芳族乙烯基单体的活性聚合物的方法。 至少一种共轭二烯化合物通过使用有机碱金属的聚合引发剂在惰性溶剂中聚合或共聚。 所生产的聚合物在催化剂存在下与氢气接触。 催化剂由以下化合物形成的环戊二烯基钛化合物：其中R 1，R 2和R 3独立地选自卤素基，C 1 -C 8烷基，C 1 -C 8烷氧基，C 6 -C 20芳氧基，C 6 -C 20环烷基，甲硅烷基 基团和羰基。 提供由以下化合物表示的烷氧基锂化合物的助催化剂：R4O-Li，其中R4是烃。 该助催化剂选择性地氢化活性聚合物的共轭二烯单元中的不饱和双键。

    Supported polymerization catalyst
    9.
    发明授权
    Supported polymerization catalyst 失效
    负载型聚合催化剂

    公开(公告)号：US5424263A

    公开(公告)日：1995-06-13

    申请号：US52317

    申请日：1993-04-23

    申请人： Charles K. Buehler

    发明人： Charles K. Buehler

    IPC分类号： B01J31/02 ,  B01J31/12 ,  B01J31/14 ,  C08F4/60 ,  C08F10/00 ,  B01J31/00 ,  C08F4/02

    CPC分类号： B01J31/0214 ,  B01J31/0212 ,  B01J31/0274 ,  B01J31/128 ,  B01J31/143 ,  C08F10/00

    摘要： A catalyst component useful in the polymerization of olefins is disclosed. The catalyst component comprises the product obtained by steps of (a) contacting silica with at least one hydrocarbon soluble magnesium-containing compound; (b) contacting the product of step (a) with component (1), a heterocyclic fused ring compound substituted with at least one oxygen atom, and component (2), a modifying compound selected from the group consisting of silicon halides, boron halides, aluminum halides, alkyl silicon halides and mixtures thereof, with the proviso that components (1) and (2) be present such that the molar ratio of component (2) to component (1) is at least about 4:1; and (c) contacting the product of step (b) with a titanium-containing compound having the structural formula TiX.sub.m (OR).sub.n, where X is halogen; R is hydrocarbyl; m is an integer of 1 to 4; and n is 0 or an integer of 1 to 3 with the proviso that the sum of m and n is 4. A catalyst system, used in the polymerization of alpha-olefins, which comprises the catalyst component of this disclosure, an aluminum-containing compound and a silane compound is also taught. Finally, a process for the polymerization of alpha-olefins, utilizing the catalyst system of the present disclosure, is described.

    摘要翻译： 公开了可用于烯烃聚合的催化剂组分。 催化剂组分包括通过以下步骤获得的产物：（a）将二氧化硅与至少一种可溶于烃的含镁化合物接触; （b）使步骤（a）的产物与组分（1）接触，由至少一个氧原子取代的杂环稠环化合物和组分（2），选自卤化硅，卤化硼 ，卤化铝，烷基硅卤化物及其混合物，条件是组分（1）和（2）存在使得组分（2）与组分（1）的摩尔比为至少约4:1; 和（c）使步骤（b）的产物与具有结构式TiXm（OR）n的含钛化合物接触，其中X是卤素; R是烃基; m为1〜4的整数。 并且n为0或1至3的整数，条件是m和n的和为4.在包含本公开内容的催化剂组分的α-烯烃的聚合中使用的催化剂体系，含铝 化合物和硅烷化合物也被教导。 最后，描述了利用本公开的催化剂体系的α-烯烃的聚合方法。