Separation method of aromatic compounds comprising simulated moving bed xylene mixture pre-treatment process and additional xylene isomerization process
    43.
    发明授权
    Separation method of aromatic compounds comprising simulated moving bed xylene mixture pre-treatment process and additional xylene isomerization process 有权
    包括模拟移动床二甲苯混合物预处理工艺和另外的二甲苯异构化方法的芳族化合物的分离方法

    公开(公告)号:US08431763B2

    公开(公告)日:2013-04-30

    申请号:US12532751

    申请日:2007-10-31

    IPC分类号: C07C7/14

    摘要: Disclosed is a method for separating aromatic compounds using a simulated moving bed adsorptive chromatography, comprising a sulfolan process that is a non-aromatic compound removing process, a benzene/toluene fractionation process, an aromatic compound fractionation process, a selective toluene disproportionation process, a transalkylation process, a simulated moving bed para-xylene separation process and a xylene isomerization process, wherein the method is characterized by further comprising a simulated moving bed xylene mixture pre-treatment process and an additional xylene isomerization process. The separation method of aromatic compounds according to the present invention can make significant improvement in para-xylene and benzene production in the overall process, as compared to the conventional aromatic compound separation process.

    摘要翻译: 公开了使用模拟移动床吸附色谱法分离芳族化合物的方法,其包括作为非芳族化合物除去方法的环丁砜方法,苯/甲苯分馏法,芳香族化合物分馏法,选择性甲苯歧化法 烷基转移方法,模拟移动床对二甲苯分离方法和二甲苯异构化方法,其特征在于还包括模拟移动床二甲苯混合物预处理方法和另外的二甲苯异构化方法。 与常规芳族化合物分离方法相比,根据本发明的芳族化合物的分离方法可以在整个方法中显着改善对二甲苯和苯的生产。

    METHOD FOR SEPARATING AROMATIC COMPOUNDS USING SIMULATED MOVING BED OPERATION
    45.
    发明申请
    METHOD FOR SEPARATING AROMATIC COMPOUNDS USING SIMULATED MOVING BED OPERATION 有权
    使用模拟移动床操作分离芳族化合物的方法

    公开(公告)号:US20090234170A1

    公开(公告)日:2009-09-17

    申请号:US12392488

    申请日:2009-02-25

    IPC分类号: C07C5/52 C07C5/22 C07C7/00

    CPC分类号: C07C15/08

    摘要: Disclosed is a method for separating aromatic compounds using a simulated moving bed (SMB) operation, characterized by injecting each raw material having a different composition into each different part of an adsorption chamber so as to improve the recovery rate. More specifically, the present invention provides a method for separating aromatic compounds for improving p-xylene separation in a p-xylene separation process, by injecting a high p-xylene mixture from selective toluene disproportionation process (STDP) and low p-xylene mixture from other processes (for example, processes of reformer, isomerization reactor and transalkylation of aromatics having 9 carbon atoms) into each different part of an adsorption chamber.

    摘要翻译: 公开了使用模拟移动床(SMB)操作分离芳族化合物的方法,其特征在于将具有不同组成的每种原料注入吸附室的每个不同部分,以提高回收率。 更具体地说,本发明提供了一种通过从选择性甲苯歧化过程(STDP)和低对二甲苯混合物中注入高对二甲苯混合物,分离对二甲苯分离过程中提高对二甲苯分离的芳族化合物的方法 其他方法(例如,重整器,异构化反应器和具有9个碳原子的芳族化合物的烷基转移)到吸附室的每个不同部分中。

    METHOD OF PREPARATION OF SPHERICAL SUPPORT FOR OLEFIN POLYMERIZATION CATALYST
    46.
    发明申请
    METHOD OF PREPARATION OF SPHERICAL SUPPORT FOR OLEFIN POLYMERIZATION CATALYST 审中-公开
    烯烃聚合催化剂球形支撑剂的制备方法

    公开(公告)号:US20090233793A1

    公开(公告)日:2009-09-17

    申请号:US11575678

    申请日:2005-03-31

    IPC分类号: B01J21/10

    摘要: Disclosed is a method of preparation of spherical support for olefin polymerization catalyst, wherein the support is produced by continuously introducing a mixture of metal magnesium and alcohol into a reactor containing a mixture comprising halogen compound and alcohol and optionally dialkoxymagnesium, and then the magnesium is reacted with the alcohol in the presence of the mixture comprising halogen compound and alcohol and optionally dialkoxy-magnesium. By the method, it is possible to control the reaction rate appropriately and to improve particle shape and particle size distribution of the resulted dialkoxymagnesium support.

    摘要翻译: 公开了一种制备用于烯烃聚合催化剂的球形载体的方法,其中通过将金属镁和醇的混合物连续引入含有卤素化合物和醇和任选的二烷氧基镁的混合物的反应器中制备载体,然后使镁反应 在含有卤素化合物和醇和任选的二烷氧基镁的混合物存在下,醇。 通过该方法,可以适当地控制反应速率并改善所得二烷氧基镁载体的颗粒形状和粒度分布。

    Preparation method of solid titanium catalyst for olefin polymerization
    47.
    发明授权
    Preparation method of solid titanium catalyst for olefin polymerization 有权
    用于烯烃聚合的固体钛催化剂的制备方法

    公开(公告)号:US07566676B2

    公开(公告)日:2009-07-28

    申请号:US10598166

    申请日:2004-10-15

    IPC分类号: C08F4/42

    摘要: The present invention relates to a preparation method of solid titanium catalyst for olefin polymerization comprising the steps of: (1) preparing a magnesium compound solution by dissolving a magnesium halide compound into a mixed solvent of a cyclic ether and one or more of alcohol; (2) preparing a carrier by adding firstly a titanium halide compound to the magnesium compound solution at low temperature, elevating the temperature of the resulted solution or aging it, and then thereto adding secondly the titanium halide compound additionally; (3) preparing a titanium catalyst by reacting the carrier with a titanium compound and an electron donor; and (4) washing the titanium catalyst with hydrocarbon solvent at high temperature.

    摘要翻译: 本发明涉及一种用于烯烃聚合的固体钛催化剂的制备方法,包括以下步骤:(1)通过将卤化镁化合物溶解在环醚和一种或多种醇的混合溶剂中来制备镁化合物溶液; (2)通过在低温下首先加入卤化镁化合物制备载体,提高所得溶液的温度或使其老化,然后再次加入卤化钛化合物; (3)通过使载体与钛化合物和电子给体反应来制备钛催化剂; 和(4)在高温下用烃溶剂洗涤钛催化剂。

    Method for producing propylene polymer having a very high melt-flowability
    48.
    发明授权
    Method for producing propylene polymer having a very high melt-flowability 有权
    生产具有非常高的熔体流动性的丙烯聚合物的方法

    公开(公告)号:US07244794B2

    公开(公告)日:2007-07-17

    申请号:US11157262

    申请日:2005-06-21

    IPC分类号: C08F4/42

    摘要: The present invention relates to a method for producing a propylene polymer having a very high melt flowability, specifically to a method for producing an isotactic propylene polymer having a dramatically improved melt flowability with a relatively high production yield in convenient way, by improving the reactivity of hydrogen that is served as a molecular weight controlling agent in propylene polymerization.

    摘要翻译: 本发明涉及一种具有非常高的熔体流动性的丙烯聚合物的制备方法,特别涉及一种制备具有显着改善的熔体流动性和方便的较高产率的全同立构丙烯聚合物的方法, 在丙烯聚合中用作分子量控制剂的氢。

    POLYPROPYLENE RESIN COMPOSITION WITH ANTI-SCRATCH CHARACTERISTICS
    50.
    发明申请
    POLYPROPYLENE RESIN COMPOSITION WITH ANTI-SCRATCH CHARACTERISTICS 有权
    聚丙烯树脂组合物具有抗刮特性

    公开(公告)号:US20060229387A1

    公开(公告)日:2006-10-12

    申请号:US11276200

    申请日:2006-02-17

    IPC分类号: C08J3/22

    摘要: The present invention provides a propylene resin composition having excellent anti-scratch characteristic. Specifically, provided is a polyolefin resin composition comprising a high crystalline polypropylene resin, a rubber component, an inorganic filler and an aluminosiloxane masterbatch, with excellent damage resistance such as anti-scratch characteristic thereby giving very low surface damage, excellent heat resistance, good rigidity and impact properties and injection moldability, for car interior or exterior parts.

    摘要翻译: 本发明提供具有优异的抗刮伤特性的丙烯树脂组合物。 具体地说,提供了包含高结晶性聚丙烯树脂,橡胶组分,无机填料和铝硅氧烷母料的聚烯烃树脂组合物,具有优异的耐划伤性等耐损伤性,因此具有非常低的表面损伤,优异的耐热性,良好的刚性 和冲击性能和注塑成型性,适用于汽车内饰件或外饰件。