Process for selective oxidation of olefins to epoxides
    1.
    发明申请
    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:US20070093666A1

    公开(公告)日:2007-04-26

    申请号:US11586061

    申请日:2006-10-25

    IPC分类号: C07D301/12

    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) 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); and adding a pressurizing gas (nitrogen) to increase the pressure, whereby olefin is further dissolved in organic solvent system to increase the selectivity and yield of the desired epoxide (propylene 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)与氧化剂(过氧化氢)接触的步骤, ,在包含有机水混溶性溶剂(甲醇)的溶剂体系中; 并加入加压气体(氮气)以增加压力,从而使烯烃进一步溶解在有机溶剂体系中以提高所需环氧化物(环氧丙烷)的选择性和产率。

    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。

    Process for selective oxidation of olefins to epoxides
    3.
    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:US07649101B2

    公开(公告)日:2010-01-19

    申请号:US11586061

    申请日:2006-10-25

    IPC分类号: C07D301/12

    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) 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); and adding a pressurizing gas (nitrogen) to increase the pressure, whereby olefin is further dissolved in organic solvent system to increase the selectivity and yield of the desired epoxide (propylene 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)与氧化剂(过氧化氢)接触的步骤, ,在包含有机水混溶性溶剂(甲醇)的溶剂体系中; 并加入加压气体(氮气)以增加压力,从而使烯烃进一步溶解在有机溶剂体系中以提高所需环氧化物(环氧丙烷)的选择性和产率。

    Process for Selective Oxidation of Olefins to Epoxides
    4.
    发明申请
    Process for Selective Oxidation of Olefins to Epoxides 有权
    烯烃选择性氧化成环氧化物的方法

    公开(公告)号:US20090131693A1

    公开(公告)日:2009-05-21

    申请号:US12206335

    申请日:2008-09-08

    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
    9.
    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
    10.
    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。