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    Process for selective oxidation of olefins to epoxides
    13.
    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

    申请人： Bala Subramaniam ,  Daryle H. Busch ,  Hyun-Jin Lee ,  Madhav Ghanta ,  Tie-Pan Shi

    发明人： Bala Subramaniam ,  Daryle H. Busch ,  Hyun-Jin Lee ,  Madhav Ghanta ,  Tie-Pan Shi

    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
    15.
    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

    申请人： Daryle H. Busch ,  Bala Subramaniam ,  Hyun-Jin Lee ,  Tie-Pan Shi

    发明人： Daryle H. Busch ,  Bala Subramaniam ,  Hyun-Jin Lee ,  Tie-Pan Shi

    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
    16.
    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

    申请人： Daryle H. Busch ,  Bala Subramaniam ,  Hyun-Jin Lee ,  Tie-Pan Shi

    发明人： Daryle H. Busch ,  Bala Subramaniam ,  Hyun-Jin Lee ,  Tie-Pan Shi

    IPC分类号： C07D301/03 ,  C07D301/12 ,  C09K3/00

    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。

    Solid acid supercritical alkylation reactions using carbon dioxide and/or other co-solvents
    18.
    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。

    Half-duplex communications for a very small aperture terminal (VSAT) operating on a continuous stream
    19.
    发明授权
    Half-duplex communications for a very small aperture terminal (VSAT) operating on a continuous stream 有权

    公开(公告)号：US09853717B2

    公开(公告)日：2017-12-26

    申请号：US15164644

    申请日：2016-05-25

    申请人： Bala Subramaniam ,  Matt Butehorn

    发明人： Bala Subramaniam ,  Matt Butehorn

    IPC分类号： H04B1/38 ,  H04B7/185 ,  H04L5/00 ,  H04L5/14 ,  H04B7/212

    CPC分类号： H04B7/18528 ,  H04B7/18517 ,  H04B7/18578 ,  H04B7/2125 ,  H04L5/0048 ,  H04L5/1453

    摘要： A method and apparatus for providing half-duplex communications for a Very Small Aperture Terminal (VSAT) operating on a continuous received stream is disclosed. The method includes: decoding the continuous received stream to establish synchronization with the continuous received stream; locating, in the continuous received stream, a time plan including a receiving timeslot and a transmitting timeslot; demodulating the continuous received stream by adapting to a timing and frequency variation of the continuous received stream in the receiving timeslot, freewheeling the adapting of the continuous received stream during the transmitting timeslot, and resuming the adapting of the continuous received stream when the transmitting timeslot ends; stopping a receiving of the continuous received stream during the transmitting timeslot; and transmitting from the VSAT during the transmitting timeslot. The freewheeling includes saving a signal acquisition parameter at the start of the transmitting timeslot and restoring the saved signal acquisition parameter at the end of the transmitting timeslot.

    Single solvent gas expanded hydroformylation process
    20.
    发明授权
    Single solvent gas expanded hydroformylation process 有权
    单溶剂气膨胀加氢甲酰化法

    公开(公告)号：US08822734B2

    公开(公告)日：2014-09-02

    申请号：US14001892

    申请日：2012-02-14

    申请人： Bala Subramaniam ,  Raghunath V. Chaudhari ,  Bibhas Sarkar

    发明人： Bala Subramaniam ,  Raghunath V. Chaudhari ,  Bibhas Sarkar

    IPC分类号： C07C45/50 ,  B01J19/24 ,  C07C47/02

    CPC分类号： C07C45/505 ,  B01J19/24 ,  B01J31/1683 ,  B01J31/2404 ,  B01J31/4046 ,  B01J31/4053 ,  B01J31/4061 ,  B01J2231/321 ,  B01J2531/822 ,  C07C45/50 ,  C07C47/02 ,  Y02P20/584 ,  C07C47/19

    摘要： Allyl alcohol, particularly from biobased sources such as glycerol, is hydroformylated to products including 4-hydroxybutyraldehyde and 4-hydroxy-2-methylpropionaldehyde by forming a homogeneous reaction mixture including allyl alcohol, a rhodium-based hydroformylation catalyst and a near critical liquefiable petroleum gas or mixture of such gases, reacting the near critical liquefiable petroleum gas (or gas mixture)-expanded allyl alcohol substrate with carbon monoxide and with hydrogen in the presence of the catalyst, and recovering substantially all of the petroleum gas or gases overhead by reducing the pressure and degassing the product mixture. Dense propane is especially useful as a single inert solvent/diluent, and substantially no other solvent/diluent is needed.

    摘要翻译： 烯丙醇，特别是生物碱源如甘油，通过形成包括烯丙醇，铑基加氢甲酰化催化剂和近临界液化石油气的均匀反应混合物，加氢甲酰化成包括4-羟基丁醛和4-羟基-2-甲基丙醛的产物 或这些气体的混合物，在催化剂存在下，将近临界液化石油气（或气体混合物） - 膨胀的烯丙醇底物与一氧化碳和氢气反应，并通过减少 压力和脱气产物混合物。 浓缩丙烷作为单一惰性溶剂/稀释剂是特别有用的，并且基本上不需要其它溶剂/稀释剂。