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149 条记录 (耗时 0.043 秒)

    Acid gas fractionation process
    73.
    发明授权
    Acid gas fractionation process 失效
    酸性气体分馏过程

    公开(公告)号：US5558698A

    公开(公告)日：1996-09-24

    申请号：US410676

    申请日：1995-03-27

    申请人： Richard W. Baker ,  Kaaeid A. Lokhandwala

    发明人： Richard W. Baker ,  Kaaeid A. Lokhandwala

    IPC分类号： B01D53/22 ,  B01D53/26 ,  B01D69/02 ,  B01D71/80 ,  B01D53/14

    CPC分类号： B01D69/02 ,  B01D53/22 ,  B01D53/226 ,  B01D53/228 ,  B01D53/268 ,  B01D71/80 ,  B01D2257/304

    摘要： Improved processes for treating gas streams containing hydrogen sulfide and carbon dioxide, particularly natural gas streams. The processes rely on the availability of a membrane that maintains high hydrogen sulfide/methane selectivity and adequate hydrogen sulfide/carbon dioxide selectivity when measured with multicomponent gas mixtures at high pressure. The processes have three steps: an acid gas removal step, to remove both hydrogen sulfide and carbon dioxide from the primary gas stream; a membrane fractionation step, to separate hydrogen sulfide from carbon dioxide and create a highly hydrogen-sulfide-concentrated fraction; and a sulfur-fixing step.

    摘要翻译： 用于处理含有硫化氢和二氧化碳，特别是天然气流的气流的改进方法。 这些方法依赖于在高压下用多组分气体混合物测量时保持高硫化氢/甲烷选择性和足够的硫化氢/二氧化碳选择性的膜的可用性。 该方法有三个步骤：酸性气体去除步骤，从主气流中除去硫化氢和二氧化碳; 膜分离步骤，从二氧化碳中分离出硫化氢并产生高度硫化氢浓缩的馏分; 和硫固定步骤。

    Pervaporation apparatus and process
    74.
    发明授权
    Pervaporation apparatus and process 失效
    全蒸发装置及工艺

    公开(公告)号：US5417847A

    公开(公告)日：1995-05-23

    申请号：US813194

    申请日：1991-12-23

    申请人： Johannes G. Wijmans ,  Juergen Kaschemekat ,  Richard W. Baker

    发明人： Johannes G. Wijmans ,  Juergen Kaschemekat ,  Richard W. Baker

    IPC分类号： B01D61/36

    CPC分类号： B01D61/362

    摘要： A pervaporation apparatus and process adapted to handle a diverse range of feed stream compositions and volumes. The apparatus includes a pervaporation unit and condenser, one or more tanks and a control system to direct liquid flows within the apparatus according to the chosen processing scheme. The apparatus and process can achieve separation performance comparable to a one-stage, two-stage, two-step or more complicated pervaporation system, including those in which two-phase permeates are produced.

    摘要翻译： 一种渗透蒸发装置和适于处理各种进料流组合物和体积的方法。 该设备包括渗透蒸发单元和冷凝器，一个或多个罐和控制系统，用于根据所选择的处理方案在设备内引导液体流。 该设备和方法可以实现与一阶段，两阶段，两步或更复杂的渗透蒸发系统相当的分离性能，包括其中生产两相渗透物的那些系统。

    Refrigeration process with purge and recovery of refrigerant
    75.
    发明授权
    Refrigeration process with purge and recovery of refrigerant 失效
    制冷过程与制冷剂的清除和回收

    公开(公告)号：US5044166A

    公开(公告)日：1991-09-03

    申请号：US488730

    申请日：1990-03-05

    申请人： Johannes G. Wijmans ,  Richard W. Baker

    发明人： Johannes G. Wijmans ,  Richard W. Baker

    IPC分类号： B01D53/22 ,  F25B43/04

    CPC分类号： B01D53/22 ,  F25B43/043

    摘要： A refrigeration process including a refrigeration cycle, and refrigerant purge and recovery operations is disclosed. The refrigeration cycle may be a vapor compression cycle or an absorption cycle, for example. A purge stream is withdrawn from the refrigeration cycle and subjected to treatment by means of a membrane separation unit. The purge-stream treatment operation produces an essentially pure refrigerant stream, suitable for return to the refrigeration cycle, and an air stream, clean enough for direct discharge to the atmosphere. The process is applicable to most refrigerants, but is particularly useful in minimizing atmospheric emissions of chlorofluorocarbons, such as CFC-11 and CFC-12.

    摘要翻译： 公开了一种包括制冷循环和制冷剂清洗和回收操作的制冷过程。 例如，制冷循环可以是蒸气压缩循环或吸收循环。 吹扫流从制冷循环中取出并通过膜分离单元进行处理。 吹扫流处理操作产生适合于返回到制冷循环的基本上纯的制冷剂流，以及足够清洁以直接排放到大气中的空气流。 该方法适用于大多数制冷剂，但特别适用于最大限度地减少氟氯化碳（如CFC-11和CFC-12）的大气排放。

    Microcapsules prepared by coacervation
    77.
    发明授权
    Microcapsules prepared by coacervation 失效
    通过凝聚制备的微胶囊

    公开(公告)号：US4808408A

    公开(公告)日：1989-02-28

    申请号：US770004

    申请日：1985-08-26

    申请人： Richard W. Baker ,  Yasuo Ninomiya

    发明人： Richard W. Baker ,  Yasuo Ninomiya

    IPC分类号： A01N25/28 ,  B01J13/10 ,  A61K9/50 ,  B01J13/02

    CPC分类号： A01N25/28 ,  B01J13/10 ,  Y10S424/10 ,  Y10T428/2984

    摘要： There is disclosed an improved complex coacervation process for microencapsulation of core ingredients that are partially soluble in the microcapsule walls wherein the core ingredient is first mixed with a coacervation adjacent prior to forming a first colloidal emulsion of core ingredient, and, after combining the first emulsion with a second colloidal solution and cooling to cause gelation, a water-soluble wax derivative is added. No pH adjustment or dilution is necessary, and very high yields of non-agglomerated microcapsules are obtained, both in terms of quantity of microcapsules and content of core ingredient. When deet is the core ingredient there is obtained a long-lasting mosquito repellent.

    摘要翻译： 公开了一种改进的复合凝聚方法，用于微胶囊化核心成分，其部分可溶于微胶囊壁，其中核心成分首先与形成核心成分的第一胶体乳剂之前相邻的凝聚剂混合，并且在将第一乳液 用第二胶体溶液冷却以引起凝胶化，加入水溶性蜡衍生物。 不需要pH调节或稀释，并且在微胶囊的量和核心成分的含量方面都获得了非常高的无团聚微胶囊产率。 当deet是核心成分时，获得了持久的驱蚊剂。

    System for delivering agent to environment of use over prolonged time
    78.
    发明授权
    System for delivering agent to environment of use over prolonged time 失效
    长时间运送代理使用环境的系统

    公开(公告)号：US4180064A

    公开(公告)日：1979-12-25

    申请号：US750701

    申请日：1976-12-15

    申请人： Jorge Heller ,  Richard W. Baker

    发明人： Jorge Heller ,  Richard W. Baker

    IPC分类号： A61K9/00 ,  A61K9/20 ,  A61K31/00 ,  A61F5/46 ,  A61K9/02 ,  A61K31/56 ,  A61K47/00 ,  A61M31/00

    CPC分类号： A61K9/2027 ,  A61K9/0004 ,  A61K9/0039

    摘要： A device for the controlled continuous administration of an active agent to an environment of use is disclosed. The device comprises a body of erodible agent release rate controlling material containing an agent dispersed therethrough; the rate controlling material is a hydrophobic poly(carboxylic acid) having one ionizable carboxylic hydrogen for each 8 to 12 carbon atoms, which material erodes at a controlled and continuous rate over a prolonged period of time in response to the environment by a process of carboxylic hydrogen ionization, thereby releasing the dispersed agent at a controlled rate over a prolonged period of time.

    摘要翻译： 公开了一种将活性剂受控连续施用于使用环境的装置。 该装置包括含有分散在其中的试剂的易侵蚀剂释放速率控制材料体; 速率控制材料是具有每个8至12个碳原子的一个可离子化羧基氢的疏水性聚（羧酸），该材料以受控和连续的速率在长时间内响应环境通过羧酸过程腐蚀 氢离子化，从而以较长的时间以受控的速率释放分散剂。

    Device for delivery of useful agent
    79.
    发明授权
    Device for delivery of useful agent 失效
    用于递送有用代理的设备

    公开(公告)号：US4014987A

    公开(公告)日：1977-03-29

    申请号：US591443

    申请日：1975-06-30

    申请人： Jorge Heller ,  Richard W. Baker

    发明人： Jorge Heller ,  Richard W. Baker

    IPC分类号： A61K9/00 ,  A61K47/00 ,  A61K9/02

    CPC分类号： A61K9/0036

    摘要： A device for the controlled continuous administration of an active agent to an environment of use is disclosed. The device comprises a body of erodible agent release rate controlling material containing an agent dispersed therethrough; the rate controlling material is a hydrophobic poly(carboxylic acid) having one ionizable carboxylic hydrogen for each 8 to 12 carbon atoms, which material erodes at a controlled and continuous rate over a prolonged period of time in response to the environment by a process of carboxylic hydrogen ionization, thereby releasing the dispersed agent at a controlled rate over a prolonged period of time.

    摘要翻译： 公开了一种用于将活性剂控制连续施用于使用环境的装置。 该装置包括含有分散在其中的试剂的易侵蚀剂释放速率控制材料体; 速率控制材料是具有每个8至12个碳原子的一个可离子化羧基氢的疏水性聚（羧酸），该材料以受控和连续的速率在长时间内响应环境通过羧酸过程腐蚀 氢离子化，从而以较长的时间以受控的速率释放分散剂。