Carrier for olefin polymerization catalysts
    32.
    发明申请
    Carrier for olefin polymerization catalysts 审中-公开
    烯烃聚合催化剂载体

    公开(公告)号:US20020028743A1

    公开(公告)日:2002-03-07

    申请号:US09970780

    申请日:2001-10-05

    IPC分类号: B01J021/08 C07C002/08

    摘要: Procedure for the preparation of a solid carrier for olefin polymerization catalysts comprising the steps: a) impregnating a silica with a solution of Mg-chloride in the presence of electron donors, b) drying the impregnated silica obtained in (a) and impregnating it with a solution of Mg-alkyls in SiCl4 at a temperature from null10 to 20null C., optionally adding a further. amount of electron donors, c) subsequently treating the slurry obtained in (b) at a temperature from 40null C. to reflux temperature, d) drying the carrier obtained in (c). The carrier which is obtained according to the above procedure is advantageously used for the preparation of supported catalysts for the polymerization of olefins

    摘要翻译: 制备用于烯烃聚合催化剂的固体载体的方法,包括以下步骤:a)在电子给体存在下用氯化镁溶液浸渍二氧化硅,b)干燥(a)中获得的浸渍二氧化硅,并用 在-10℃至20℃的温度下,将Mg-烷基在SiCl 4中的溶液,任选地进一步加入。 电子给体的量,c)随后将在(b)中获得的浆料在40℃的温度下处理至回流温度,d)干燥(c)中获得的载体。 根据上述方法获得的载体有利地用于制备用于烯烃聚合的负载型催化剂

    Method for cleaning diesel engine exhaust gas
    34.
    发明申请
    Method for cleaning diesel engine exhaust gas 失效
    清洁柴油机废气的方法

    公开(公告)号:US20010004452A1

    公开(公告)日:2001-06-21

    申请号:US09725340

    申请日:2000-11-29

    摘要: A method for cleaning diesel engine exhaust gas is described. The exhaust gas is passed over a catalytic converter with an active material which contains (% by weight) 70-95% TiO2, 2-10% WO3 and/or MoO3, 0.1-5% V2O5, 0.1-8% CaO, 0.1-8% Al2O3, 0.1-5% B2O3 and 0.1-10% SiO2. A reducing agent for a reduction of nitrogen oxides is metered into the exhaust-gas stream upstream of the catalytic converter.

    摘要翻译: 描述了一种用于清洁柴油发动机废气的方法。 废气通过含有(重量%)(重量%)70-95%TiO 2,2-10%WO 3和/或MoO 3,0.1-5%V 2 O 5,0.1-8%CaO,0.1- 8%Al2O3,0.1-5%B2O3和0.1-10%SiO2。 将用于还原氮氧化物的还原剂计量到催化转化器上游的排气流中。

    Reforming catalyst
    35.
    发明申请
    Reforming catalyst 审中-公开
    重整催化剂

    公开(公告)号:US20040102315A1

    公开(公告)日:2004-05-27

    申请号:US10305693

    申请日:2002-11-27

    IPC分类号: B01J021/08

    摘要: A reforming catalyst comprising precious metal particles dispersed on a support material, wherein the precious metal particles comprise rhodium or ruthenium, characterised in that the support material comprises silica, alumina and ceria is disclosed. The catalyst shows improved sulphur tolerance. Catalysed components and fuel processing systems comprising the catalysts, and reforming processes using the catalysts are also disclosed.

    摘要翻译: 包含分散在载体材料上的贵金属颗粒的重整催化剂,其中所述贵金属颗粒包括铑或钌,其特征在于所述载体材料包括二氧化硅,氧化铝和二氧化铈。 催化剂显示改善的耐硫性。 还公开了包含催化剂的催化组分和燃料处理系统,以及使用这些催化剂的重整方法。

    Catalyst Support
    37.
    发明申请
    Catalyst Support 有权
    催化剂支持

    公开(公告)号:US20040063575A1

    公开(公告)日:2004-04-01

    申请号:US10670222

    申请日:2003-09-26

    申请人: Degussa AG

    摘要: A catalyst support consisting mainly of synthetic silica, with 0.5-10 parts by weight of one or more oxides or phosphates of the elements of group IIA, IIIB, IVB, VB, VIIB, VIIB, VIII, IB, IIB, IIIA, IVA and the lanthanides characterised in that the support preparation method comprises mixing particulate synthetic silica with particulate oxides or phospates of the elements of Groups IIA, IIIB, IVB, VB, VIIB, VIIB, VIII, IB, IIB, IIIA, IVA and the lanthanides, or with precursors thereof, a forming step and calcination. The catalyst support is used together with phosphoric acid in the production of alcohols from olefins by hydration.

    摘要翻译: 主要由合成二氧化硅组成的催化剂载体,其具有0.5-10重量份的IIA,IIIB,IVB,VB,VIIB,VIIB,VIII,IB,IIB,VIIA,IVA族元素的一种或多种氧化物或磷酸盐,以及 镧系元素的特征在于载体制备方法包括将颗粒状合成二氧化硅与IIA,IIIB,IVB,VB,VIIB,VIIB,VIII,IB,IIB,VIIA,IVA族和镧系元素的元素的颗粒氧化物或磷酸盐混合,或 其前体,成型步骤和煅烧。 催化剂载体与磷酸一起用于通过水合由烯烃生产醇。

    Processing for eliminating sulfur-containing compounds and nitrogen-containing compounds from hydrocarbon
    38.
    发明申请
    Processing for eliminating sulfur-containing compounds and nitrogen-containing compounds from hydrocarbon 有权
    从烃中除去含硫化合物和含氮化合物的处理

    公开(公告)号:US20040045874A1

    公开(公告)日:2004-03-11

    申请号:US10462809

    申请日:2003-06-17

    CPC分类号: C10G21/12 C10G29/205

    摘要: A process for desulfurization and, if necessary, for denitrification of hydrocarbon fractions is characterized in that: said hydrocarbon mixture is brought into contact with a non-aqueous ionic liquid of general formula QnullAnull that contains at least one alkylating agent, making it possible to form ionic sulfur-containing derivatives (and, if necessary, nitrogen-containing derivatives) that have a preferred solubility in the ionic liquid; and said ionic liquid is separated from the hydrocarbon mixture that is low in sulfur and nitrogen by decanting.

    摘要翻译: 用于脱硫的方法,如果需要,用于烃馏分的脱氮的特征在于:使所述烃混合物与含有至少一种烷基化的通式Q + A的非水离子液体接触 使得可以在离子液体中形成具有优选溶解度的离子含硫衍生物(和必要时含氮衍生物); 并且所述离子液体通过倾析与硫和氮低的烃混合物分离。