ALKYLENE EPOXIDATION WITH MESOPOROUS CATALYSTS
    1.
    发明申请
    ALKYLENE EPOXIDATION WITH MESOPOROUS CATALYSTS 有权
    亚烷基氧化与多孔催化剂

    公开(公告)号:US20150191442A1

    公开(公告)日:2015-07-09

    申请号:US14409503

    申请日:2013-06-27

    IPC分类号: C07D301/19

    CPC分类号: C07D301/19 C07D301/12

    摘要: A process for epoxidizing an olefin comprising contacting an olefin with an oxidant in the presence of an insoluble oxidation catalyst in a solvent system comprising an organic water-miscible solvent to form an alkylene oxide. The insoluble oxidation catalyst comprises a metal, preferably selected from the group consisting of tungsten, cerium, and niobium. The metal is directly incorporated within a solid mesoporous silicate support, such as one selected from the group consisting of KIT-5, KIT-6, and TUD-1.

    摘要翻译: 一种使烯烃环氧化的方法,包括使烯烃与氧化剂在不溶性氧化催化剂存在下在包含有机水混溶性溶剂的溶剂体系中接触以形成烯化氧。 不溶性氧化催化剂包含优选选自钨,铈和铌的金属。 将金属直接掺入固体介孔硅酸盐载体中,例如选自KIT-5,KIT-6和TUD-1的一种。

    Process for selective oxidation of olefins to epoxides
    2.
    发明授权
    Process for selective oxidation of olefins to epoxides 有权
    将烯烃选择性氧化成环氧化物的方法

    公开(公告)号:US08080677B2

    公开(公告)日:2011-12-20

    申请号:US12206335

    申请日:2008-09-08

    IPC分类号: C07D303/00

    CPC分类号: C07D301/12 Y02P20/582

    摘要: A process for the selective oxidation of olefins to epoxides comprising the step of contacting the olefin (propylene or ethylene) with an oxidant (hydrogen peroxide) in the presence of a Lewis acid oxidation catalyst (MTO), organic base (pyridine or its N-oxide), in a solvent system comprising an organic water-miscible solvent (methanol). The system is pressurized using either the olefin itself or by adding an inert pressurizing gas (nitrogen) to increase the pressure between 230 and 700 psi at a temperature between 0.7 and 1.3 times the critical temperature of the olefin. The resulting increased solubility of the olefin in the organic solvent system increases the selectivity and yield of the desired epoxide (propylene oxide or ethylene oxide).

    摘要翻译: 一种将烯烃选择性氧化成环氧化物的方法,包括在路易斯酸氧化催化剂(MTO),有机碱(吡啶或其N-氧化物)存在下使烯烃(丙烯或乙烯)与氧化剂(过氧化氢)接触的步骤, 氧化物),在包含有机水混溶性溶剂(甲醇)的溶剂体系中。 使用烯烃本身或通过加入惰性加压气体(氮气)来加压系统,以在烯烃的临界温度的0.7至1.3倍之间的温度下增加230至700psi之间的压力。 所产生的烯烃在有机溶剂体系中的溶解度增加了所需环氧化物(环氧丙烷或环氧乙烷)的选择性和产率。

    Filtering code blocks to maintain high throughput thru a forward error correction decoder

    公开(公告)号:US10193657B2

    公开(公告)日:2019-01-29

    申请号:US15392103

    申请日:2016-12-28

    摘要: A system and method for filtering code blocks to maintain high throughput thru a Forward Error Correcting (FEC) decoder is disclosed. The method includes: monitoring a Signal-to-Noise Ratio (SNR) for an incoming link; selecting a rank table including a rank, Modulation and Coding Rate (MODCOD), and a minimum SNR; determining a threshold MODCOD range from the rank table based on the SNR; demodulating an incoming frame; identifying, in the incoming frame, the code blocks and an associated MODCOD for each of the code blocks; selecting a code block from the code blocks when the respective MODCOD for the code block is in the rank table and within the threshold MODCOD range; and decoding the selected code block with the associated MODCOD.

    Spray process for selective oxidation
    5.
    发明授权
    Spray process for selective oxidation 有权
    用于选择性氧化的喷涂工艺

    公开(公告)号:US09238608B2

    公开(公告)日:2016-01-19

    申请号:US13258159

    申请日:2010-03-23

    摘要: Oxidation process can include: introducing small droplets of liquid reaction mixture having oxidizable reactant, catalyst, and solvent into a reaction zone containing oxygen and diluent gas; and oxidizing the reactant with the oxygen at a suitable reaction temperature and a suitable reaction pressure to produce an oxidized product. The liquid reaction mixture can have an aromatic feedstock having an oxidizable substituent as the oxidizable reactant. The oxidized product can include an aromatic compound having at least one carboxylic acid. For example, the aromatic feedstock can include a benzene ring having at least one oxidizable alkyl substituent, furan hetero-ring having at least one oxidizable alkyl substituent, a naphthalene poly-ring having at least one oxidizable alkyl substituent, derivatives thereof, and mixtures thereof.

    摘要翻译: 氧化过程可以包括:将具有可氧化反应物,催化剂和溶剂的小液滴的液体反应混合物引入含有氧气和稀释气体的反应区; 并在合适的反应温度和合适的反应压力下用氧氧化反应物以产生氧化产物。 液体反应混合物可具有具有可氧化取代基的芳族原料作为可氧化反应物。 氧化产物可以包括具有至少一个羧酸的芳族化合物。 例如,芳族原料可以包括具有至少一个可氧化烷基取代基的苯环,具有至少一个可氧化烷基取代基的呋喃异环,具有至少一个可氧化烷基取代基的萘多环,其衍生物及其混合物 。

    PROCESS FOR PRODUCING BOTH BIOBASED SUCCINIC ACID AND 2,5-FURANDICARBOXYLIC ACID
    6.
    发明申请
    PROCESS FOR PRODUCING BOTH BIOBASED SUCCINIC ACID AND 2,5-FURANDICARBOXYLIC ACID 审中-公开
    生产双酚化酸和2,5-呋喃糖基酸的方法

    公开(公告)号:US20140343305A1

    公开(公告)日:2014-11-20

    申请号:US14239822

    申请日:2012-08-28

    IPC分类号: C07D307/68 C07C51/245

    摘要: A process is provided for carrying out an oxidation on a feed including levulinic acid and/or a levulinic acid oxidation precursor to succinic acid, one or more furanic oxidation precursors of 2,5-furandicarboxylic acid and a catalytically effective combination of cobalt, manganese, and bromide components for catalyzing the oxidation of the levulinic acid component and of the one or more furanic oxidation precursors to produce both succinic acid and 2,5-furandicarboxylic acid products, which process comprises supplying the feed to a reactor vessel, supplying an oxidant, reacting the levulinic acid component and the one or more furanic oxidation precursors with the oxidant to produce both succinic acid and 2,5-furandicarboxylic acid (FDCA) and then recovering the succinic acid and FDCA products. A crude dehydration product from the dehydration of fructose, glucose or both, including 5-hydroxymethylfurfural, can be directly oxidized by the process to produce 2,5-furandicarboxylic acid and succinic acid.

    摘要翻译: 提供了一种方法,用于在包含乙酰丙酸和/或乙酰丙酸氧化前体的进料上进行氧化,所述前体包含琥珀酸,一种或多种2,5-呋喃二羧酸的呋喃氧化前体和催化有效的钴,锰, 以及用于催化乙酰丙酸组分和一种或多种呋喃氧化前体的氧化以产生琥珀酸和2,5-呋喃二羧酸产物的溴化物组分,该方法包括将进料供应到反应器容器中,供应氧化剂, 使乙酰丙酸组分和一种或多种呋喃氧化前体与氧化剂反应以产生琥珀酸和2,5-呋喃二羧酸(FDCA),然后回收琥珀酸和FDCA产物。 由脱水果糖,葡萄糖或两者(包括5-羟甲基糠醛)的粗脱水产物可直接氧化,生成2,5-呋喃二羧酸和琥珀酸。

    Polyol hydrogenolysis by in-situ generated hydrogen
    7.
    发明授权
    Polyol hydrogenolysis by in-situ generated hydrogen 有权
    多元醇氢解由原位产生的氢气

    公开(公告)号:US08415511B2

    公开(公告)日:2013-04-09

    申请号:US12796245

    申请日:2010-06-08

    摘要: A catalyst composition/system can include: a platinum catalyst metal (Pt) and/or rhenium catalyst metal (Re) on a first support; and a ruthenium catalyst metal (Ru) and/or rhenium catalyst metal (Re) on a second support or a platinum catalyst metal (Pt) and a ruthenium catalyst metal (Ru) and/or a rhenium catalyst metal (Re) on the same support. The Pt:Ru, Re:Pt and/or Re:Ru weight ratio can be between about 1:4 and about 4:1. The support can be alumina, carbon, silica, a zeolite, TiO2, ZrO2 or another suitable material. The first and second support can be on the same support structure or on different support structures. In one option, the first and second supports can be positioned such that the Pt and/or Re are capable of catalyzing a dehydrogenation and/or reforming reaction that produces hydrogen and the Ru and/or Re are capable of catalyzing a hydrogenolysis reaction.

    摘要翻译: 催化剂组合物/体系可以包括:在第一载体上的铂催化剂金属(Pt)和/或铼催化剂金属(Re); 以及在第二载体上的铂催化剂金属(Pt)和钌催化剂金属(Ru)和/或铼催化剂金属(Re)上的钌催化剂金属(Ru)和/或铼催化剂金属(Re) 支持。 Pt:Ru,Re:Pt和/或Re:Ru重量比可以在约1:4至约4:1之间。 载体可以是氧化铝,碳,二氧化硅,沸石,TiO 2,ZrO 2或其它合适的材料。 第一和第二支撑件可以在相同的支撑结构上或不同的支撑结构上。 在一个选择中,第一和第二载体可以被定位成使得Pt和/或Re能够催化产生氢的脱氢和/或重整反应,并且Ru和/或Re能够催化氢解反应。

    Method for precipitation of small medicament particles into use containers
    9.
    发明授权
    Method for precipitation of small medicament particles into use containers 有权
    将小药物颗粒沉淀到使用容器中的方法

    公开(公告)号:US07744923B2

    公开(公告)日:2010-06-29

    申请号:US11870554

    申请日:2007-10-11

    IPC分类号: A61K9/14

    摘要: Commercially feasible methods for lyophobic precipitation of liquid-dispersed or dissolved material (e.g., medicaments) are provided wherein a plurality of individual, open containers (22) each containing a quantity (84) of a solution or dispersion are treated within a common pressurizable chamber (12). In this process, desired near-supercritical or supercritical temperature and pressure conditions are established for a selected antisolvent gas such as carbon dioxide, and an ultrasonic device (14) is actuated to generate high energy ultrasonic waves in the chamber (12). This leads to intense mixing of the antisolvent with the liquid solution or dispersion within the containers (22), with consequent solvent removal and material precipitation.

    摘要翻译: 提供了用于液体分散或溶解的材料(例如药物)的疏液沉淀的商业上可行的方法,其中每个含有(84)溶液或分散体的多个单独的开放容器(22)在共同的可加压室 (12)。 在这个过程中,为所选择的反溶剂气体例如二氧化碳建立了所需的近临界或超临界温度和压力条件,并且致动超声波装置(14)以在腔室(12)中产生高能超声波。 这导致反溶剂与容器(22)内的液体溶液或分散体的强烈混合,随后进行溶剂去除和材料沉淀。