利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

54 条记录 (耗时 0.026 秒)

    Solid acid supercritical alkylation reactions using carbon dioxide and/or other co-solvents
    1.
    发明授权
    Solid acid supercritical alkylation reactions using carbon dioxide and/or other co-solvents 失效
    使用二氧化碳和/或其他共溶剂的固体酸超临界烷基化反应

    公开(公告)号：US5907075A

    公开(公告)日：1999-05-25

    申请号：US872865

    申请日：1997-06-11

    申请人： Bala Subramaniam ,  Michael C. Clark

    发明人： Bala Subramaniam ,  Michael C. Clark

    IPC分类号： B01J3/00 ,  C07B61/00 ,  C07C2/58 ,  C07C9/21 ,  C07C2/56

    CPC分类号： C07C2/58 ,  B01J3/008 ,  C07C2521/06 ,  C07C2529/06 ,  Y02P20/544

    摘要： Improved isoparaffin-olefin alkylation solid catalyst processes are provided which are characterized by low coke laydown and catalyst deactivation rates and production of valuable branched chain, high octane number alkylates. The processes of the invention involve providing a starting reactant mixture comprising an isoparaffin, an olefin and a co-solvent or diluent (carbon dioxide in molar excess, methane, hydrogen or mixtures thereof), and contacting the reactant mixture with an alkylation catalyst at near-critical or preferably supercritical conditions for the reaction mixture. The carbon dioxide serves as a co-solvent and reduces the critical temperature (T.sub.c) of the reaction mixture, thereby allowing lower reaction temperatures. The isoparaffin and olefin reactants are preferably pretreated to minimize moisture, peroxide and oxygenate impurities therein.

    摘要翻译： 提供改进的异链烷烃烯烃烷基化固体催化剂方法，其特征在于低焦炭沉淀和催化剂失活速率和有价值的支链高辛烷值烷基化物的生产。 本发明的方法包括提供起始反应物混合物，其包含异链烷烃，烯烃和共溶剂或稀释剂（摩尔过量的二氧化碳，甲烷，氢气或其混合物），并将反应混合物与烷基化催化剂接近 重要或优选超临界条件。 二氧化碳用作助溶剂并降低反应混合物的临界温度（Tc），由此允许较低的反应温度。 优选对异链烷烃和烯烃反应物进行预处理，以使其中的水分，过氧化物和含氧化合物的杂质最小化。

    Filtering code blocks to maintain high throughput thru a forward error correction decoder
    4.
    发明授权
    Filtering code blocks to maintain high throughput thru a forward error correction decoder 有权

    公开(公告)号：US10193657B2

    公开(公告)日：2019-01-29

    申请号：US15392103

    申请日：2016-12-28

    申请人： Bala Subramaniam ,  Alexei Duhovich

    发明人： Bala Subramaniam ,  Alexei Duhovich

    IPC分类号： H04L1/00 ,  H04L12/26 ,  H04L1/20 ,  H03M13/35

    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

    申请人： Bala Subramaniam ,  Daryle H. Busch ,  Fenghul Niu

    发明人： Bala Subramaniam ,  Daryle H. Busch ,  Fenghul Niu

    IPC分类号： C07C51/265 ,  C07C51/255 ,  B01J4/00 ,  B01J10/00

    CPC分类号： C07C51/255 ,  B01J4/002 ,  B01J10/007 ,  B01J2219/00006 ,  B01J2219/00063 ,  B01J2219/00065 ,  B01J2219/00162 ,  C07C51/265 ,  C07C63/00

    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

    申请人： Bala Subramaniam ,  Xiaobin Zuo ,  Daryle H. Busch ,  Padmesh Venkitasubramaniam

    发明人： Bala Subramaniam ,  Xiaobin Zuo ,  Daryle H. Busch ,  Padmesh Venkitasubramaniam

    IPC分类号： C07D307/68 ,  C07C51/245

    CPC分类号： C07D307/68 ,  C07C51/245 ,  C07D307/46 ,  C07C55/10

    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

    申请人： Raghunath V. Chaudhari ,  Debdut S. Roy ,  Bala Subramaniam

    发明人： Raghunath V. Chaudhari ,  Debdut S. Roy ,  Bala Subramaniam

    IPC分类号： C07C29/60 ,  B01J23/42 ,  B01J23/46 ,  B01J31/02

    CPC分类号： B01J23/462 ,  B01J21/04 ,  B01J21/18 ,  B01J23/6567 ,  B01J35/0006 ,  C07C29/60 ,  C07C31/205

    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

    申请人： Roger A. Rajewski ,  Bala Subramaniam ,  Fenghui Niu

    发明人： Roger A. Rajewski ,  Bala Subramaniam ,  Fenghui Niu

    IPC分类号： A61K9/14

    CPC分类号： A61K9/1688 ,  B01J2/02 ,  B01J2/04 ,  B01J2/18

    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。