Preparation of halogen-free, reactive polyisobutene
    1.
    发明授权
    Preparation of halogen-free, reactive polyisobutene 失效
    无卤素,反应性聚异丁烯的制备

    公开(公告)号:US06384154B1

    公开(公告)日:2002-05-07

    申请号:US09744256

    申请日:2001-01-31

    IPC分类号: C08F11010

    摘要: A process for preparing halogen-free, reactive polyisobutene having a terminal double bond content of more than 60 mol % and an average molecular weight Mn of 800-3000 dalton by cationic polymerization in the liquid phase of isobutene over an acidic, essentially halogen-free heterogeneous catalyst, where a) a hydrocarbon mixture of essentially C4-hydrocarbons comprising isobutene in an amount of from 10 to 80% by weight is used as the starting material and b) polymerization is carried out continuously at from −30 to 0° C. with average starting material residence times of one hour or less, where the temperature and the residence time are selected such that the isobutene conversion is less than 60% and, after separation from the resulting polyisobutene, the isobutene is either enriched in the partially converted hydrocarbon mixture and returned to the polymerization or passed to another isobutene reaction coupled with the polymerization.

    摘要翻译: 一种通过阳离子聚合在异丁烯液相中酸性,基本上不含卤素的方式制备末端双键含量大于60mol%,平均分子量Mn为800-3000道尔顿的无卤素的活性聚异丁烯的方法 非均相催化剂,其中将基本上含有10-80重量%异丁烯的C 4烃的烃混合物用作原料,和b)在-30℃至0℃下连续进行聚合,平均 起始材料停留时间为1小时或更短,其中选择温度和停留时间使得异丁烯转化率小于60%,并且在从所得聚异丁烯分离后,异丁烯富含部分转化的烃混合物, 返回聚合反应或通过与聚合偶联的另一异丁烯反应。

    Preparation of a basic catalyst avoiding high temperatures
    4.
    发明授权
    Preparation of a basic catalyst avoiding high temperatures 失效
    避免高温的碱性催化剂的制备

    公开(公告)号:US06414207B2

    公开(公告)日:2002-07-02

    申请号:US09884655

    申请日:2001-06-20

    IPC分类号: C07C224

    摘要: A catalyst comprising at least one alkali metal and at least one metallic or semimetallic promoter selected from the group consisting of Ca, Sr, Ba, Ag, Au, Zn, Cd, Hg, In, Tl, Sn, As, Sb and Bi, on a support which may be doped with one or more compounds of an alkali metal and/or alkaline earth metal, where the alkali metal/support ratio by weight is from 0.01 to 5, the promoter/alkali metal ratio by weight is from 0.0001 to 5 and, when a dopant is present, the dopant/support ratio by weight is from 0.01 to 5.

    摘要翻译: 一种包含至少一种碱金属和至少一种选自Ca,Sr,Ba,Ag,Au,Zn,Cd,Hg,In,Tl,Sn,As,Sb和Bi的金属或半金属助催化剂的催化剂, 在可以掺杂一种或多种碱金属和/或碱土金属的化合物的载体上,其中碱金属/载体比例为0.01至5,助催化剂/碱金属重量比为0.0001至 并且当存在掺杂剂时,掺杂剂/载体的重量比为0.01至5。

    Method for the single-step production of polytetrahydrofuran and tetrahydrofuran copolymers
    5.
    发明授权
    Method for the single-step production of polytetrahydrofuran and tetrahydrofuran copolymers 失效
    单步生产聚四氢呋喃和四氢呋喃共聚物的方法

    公开(公告)号:US06716937B2

    公开(公告)日:2004-04-06

    申请号:US10312851

    申请日:2003-01-02

    IPC分类号: C08F244

    CPC分类号: C08G65/30 C08G65/20

    摘要: A process for the single-stage preparation of polytetrahydrofuran and/or tetrahydrofuran copolymers having a mean molecular weight of from 650 to 5000 dalton by polymerization of tetrahydrofuran over a heterogeneous acid catalyst in the presence of at least one telogen and/or comonomer selected from the group consisting of alpha,omega-diols, water, polytetrahydrofuran having a molecular weight of from 200 to 700 dalton and cyclic ethers comprises a) separating off the catalyst and/or downstream products of the catalyst suspended and/or dissolved in the output from the polymerization, b) fractionating the resulting catalyst-free output from the polymerization in at least one distillation step to give a distillation residue comprising the polymerization product and at least one tetrahydrofuran fraction and returning at least part of the tetrahydrofuran fraction to the polymerization and c) separating low molecular weight polytetrahydrofuran and/or tetrahydrofuran copolymers having a mean molecular weight of from 200 to 700 dalton from the distillation residue from work-up step b) and isolating polytetrahydrofuran and/or tetrahydrofuran copolymers having a mean molecular weight of from 650 to 5000 dalton.

    摘要翻译: 一种通过在多相酸催化剂的存在下,在四氢呋喃和/或共聚单体的存在下,通过四氢呋喃聚合,单分级制备平均分子量为650-5000道尔顿的聚四氢呋喃和/或四氢呋喃共聚物的方法,该共聚单体选自 由α,ω-二醇,水,分子量为200至700道尔顿的聚四氢呋喃和环醚组成的组包括:a)将催化剂和/或催化剂的下游产物分离出悬浮和/或溶解在聚合物的输出中 b)在至少一个蒸馏步骤中将所得无催化剂的产物从聚合中分馏,得到包含聚合产物和至少一种四氢呋喃馏分的蒸馏残余物,并将至少部分四氢呋喃馏分返回到聚合反应中, 分子量的四氢呋喃和/或四氢呋喃共聚物 来自后处理步骤b)的蒸馏残余物的200至700道尔顿的颗粒重量,并分离平均分子量为650-5000道尔顿的聚四氢呋喃和/或四氢呋喃共聚物。

    Basic catalyst based on titanates, zirconates and hafnates
    7.
    发明授权
    Basic catalyst based on titanates, zirconates and hafnates 失效
    基于钛酸盐,锆酸盐和铪的基本催化剂

    公开(公告)号:US06262325B1

    公开(公告)日:2001-07-17

    申请号:US09412604

    申请日:1999-10-06

    IPC分类号: C07C266

    摘要: The catalyst comprises at least one alkali metal on a support which has the general formula (I) An′Tim′Zrp′Hfq′On′+2(m′+p′+q′)  (I) where A is a divalent metal, 20·(m′+p′+q′)>n′>0.05·(m′+p′+q′), and which may be doped with at least one compound of an alkali metal and/or alkaline earth metal, where the alkali metal/support ratio by weight is 0.01-5:1 and, when a dopant is present, the dopant/support ratio by weight is 0.01-5:1, and where the proportion of support phase corresponding to the ZrO2 structure or an alkaline earth metal oxide structure or consisting of ZrO2 or alkaline earth metal oxide is less than 10% by weight. The catalyst is used for the side-chain alkylation or alkenylation of alkylaromatic compounds with olefins or diolefins, for the double-bond isomerization of olefins, for the dimerization of olefins, for the coupling of aromatic nuclei and for the amination of olefins and conjugated diolefins.

    摘要翻译: 催化剂包含至少一种碱金属,其具有通式(I),其中A是二价金属,20(m'+ p'+ q')> n'> 0.05(m'+ p'+ q'),并且其可以掺杂有至少一种碱金属和/或碱土金属的化合物,其中碱金属/载体重量比为0.01-5:1,并且当存在掺杂剂时,掺杂剂 /载体重量比为0.01-5:1,其中对应于ZrO 2结构或碱土金属氧化物结构或由ZrO 2或碱土金属氧化物组成的支撑相的比例小于10重量%。 催化剂用于烷基芳基化合物与烯烃或二烯烃的侧链烷基化或链烯基化,用于烯烃的双键异构化,用于烯烃的二聚,芳族核的偶联和用于烯烃和共轭二烯烃的胺化 。

    Method for producing alkyl aromatic compounds
    9.
    发明授权
    Method for producing alkyl aromatic compounds 失效
    烷基芳族化合物的制备方法

    公开(公告)号:US07652183B2

    公开(公告)日:2010-01-26

    申请号:US10552434

    申请日:2004-04-14

    IPC分类号: C07C2/66

    摘要: In a process for the preparation of alkylaromatic compounds by reacting C3-30-olefins, or alcohols from which C3-30-olefins are formed under the reaction conditions, with an aromatic hydrocarbon in the presence of an alkylation catalyst, the reaction is carried out in a reactor cascade of at least two reactors, where each of the reactors comprises the alkylation catalyst, at least 80% of the aromatic hydrocarbon are fed into the first reactor of the reactor cascade, and at least 40% of the olefins are intermediately fed in after the first reactor.

    摘要翻译: 在烷基芳族化合物的制备方法中,在烷基化催化剂的存在下,使C3-30-烯烃或在反应条件下由C 3-30-烯烃形成的醇与芳烃反应,进行反应 在至少两个反应器的反应器级联中,其中每个反应器包含烷基化催化剂,至少80%的芳族烃进料到反应器级联的第一反应器中,并且至少40%的烯烃被中间进料 在第一反应堆之后。

    Method for producing alkylaryl compounds
    10.
    发明申请
    Method for producing alkylaryl compounds 审中-公开
    烷基芳基化合物的制备方法

    公开(公告)号:US20070142258A1

    公开(公告)日:2007-06-21

    申请号:US10583140

    申请日:2004-12-17

    IPC分类号: C09D9/00

    摘要: The preparation of alkylaryl compounds takes place by a) reaction of a C4/C5-olefin mixture over a metathesis catalyst to prepare a C4-8-olefin mixture comprising 2-pentene, and optional removal of the C4-8-olefin mixture, b) removal of from 5 to 100% of the 2-pentene present in stage a) and subsequent reaction over an isomerization catalyst to give a mixture of 2-pentene and 1-pentene which is returned to stage a), c) dimerization of the C4-8-olefin mixture obtained in stage b) following removal in the presence of a dimerization catalyst to give a mixture containing C8-16-olefins, removal of these C8-16-olefins and optional removal of a partial stream thereof, d) reaction of the c8-16-olefin mixtures obtained in stage c) or of the partial stream with an aromatic hydrocarbon in the presence of an alkylation catalyst to form alkyl aromatic compounds where, prior to the reaction, 0 to 60% by weight, based on the c8-16-olefin mixtures obtained in stage c), of linear olefins may additionally be added, e) optional sulfonation of the alkyl aromatic compounds obtained in stage d) and neutralization to give alkylarylsulfonates, where, prior to the sulfonation, 0 to 60% by weight, based on the alkyl aromatic compounds obtained in stage d), of linear alkylbenzenes may additionally be added if no admixing has taken place in stage d), f) optional mixing of the alkylarylsulfonates obtained in stage e) with 0 to 60% by weight, based on the alkylarylsulfonates obtained in stage e), of linear alkylarylsulfonate, if no admixing has taken place in stages d) and e).

    摘要翻译: 烷基芳基化合物的制备通过以下步骤进行:a)在复分解催化剂上使C 4-14 C 5 -C 5 - 烯烃混合物反应以制备C 4-8 - 其包含2-戊烯,任选地除去C 4-18α-烯烃混合物,b)除去在步骤a)中存在的5-100%的2-戊烯, 并随后在异构化催化剂上反应,得到2-戊烯和1-戊烯的混合物,将其返回到a)步骤,c)在步骤b中获得的C 4-18α-烯烃混合物的二聚反应 ),在二聚催化剂存在下除去,得到含有C 8-16 - 烯烃的混合物,除去这些C 8-16 - 烯烃并任选地除去 其部分流,d)在烷基化催化剂存在下,将阶段c)或部分流中获得的C 8-16 - α-烯烃混合物与芳族烃反应,形成烷基芳族化合物,其中 在反应之前,0至60重量%,b 在阶段c)中得到的C 8-16α-烯烃混合物中,可以另外加入线性烯烃,e)任选的在步骤d)中获得的烷基芳族化合物磺化,中和得到烷基芳基磺酸盐 ,其中在磺化之前,如果在步骤d)中没有混合,则可以另外加入基于直链烷基苯中得到的直链烷基苯0至60重量%,f)任选混合 如果在阶段d)和e)中没有混合,则在阶段e)中获得的烷基芳基磺酸盐以0至60重量%的量计,基于阶段e)中得到的烷基芳基磺酸盐,为直链烷基芳基磺酸盐。