Method for purifying tryptophan
    42.
    发明授权
    Method for purifying tryptophan 失效
    纯化色氨酸的方法

    公开(公告)号:US4820825A

    公开(公告)日:1989-04-11

    申请号:US143847

    申请日:1988-01-14

    IPC分类号: C12P13/22 C07D209/20

    CPC分类号: C07D209/20

    摘要: A process for purifying tryptophan produced by microbial cells or an enzyme is disclosed. In this process, the microbial cells are separated, the solution containing tryptophan is treated at a pH in the range of 1 to 4 with activated carbon and a non-polar highly porous resin and crystallized under neutralization in the presence of a lower aliphatic alcohol or a lower aliphatic ketone.The thus purified tryptophan has a transmission of 95% and more.

    Ignition coil
    43.
    发明授权
    Ignition coil 有权
    点火线圈

    公开(公告)号:US07849843B2

    公开(公告)日:2010-12-14

    申请号:US12060456

    申请日:2008-04-01

    IPC分类号: F02P3/02

    CPC分类号: H01F38/12

    摘要: An ignition coil is equipped with a sparkplug of an engine. The ignition coil includes a coil portion, a tower portion, and a plug cap. The coil portion includes a coil case accommodating a primary and secondary coils being coaxial with each other. The coil portion has an end connected with the plug cap via the tower portion. The plug cap is press-fitted with the sparkplug. The coil case has an outer periphery from which a flange portion projects radially outward in a flange-projecting direction. The tower cylinder portion has a tower axis substantially in parallel with a coil axis of the primary and secondary coils. The tower axis is offset from the coil axis in a tower-offset direction. The tower-offset direction is substantially the same as the flange-projecting direction.

    摘要翻译: 点火线圈配有发动机的火花塞。 点火线圈包括线圈部分,塔架部分和塞帽。 线圈部分包括容纳彼此同轴的初级和次级线圈的线圈壳体。 线圈部分具有经由塔架部分与塞帽连接的端部。 插头盖与火花塞压配合。 线圈壳体具有外周,凸缘部在该外周缘沿凸缘方向从径向向外突出。 塔筒部分具有与初级和次级线圈的线圈轴线基本平行的塔架轴线。 塔轴在塔偏移方向上偏离线圈轴。 塔偏移方向基本上与凸缘方向相同。

    Ignition coil
    44.
    发明授权
    Ignition coil 有权
    点火线圈

    公开(公告)号:US07796004B2

    公开(公告)日:2010-09-14

    申请号:US12150159

    申请日:2008-04-25

    CPC分类号: H01F38/12 H01F27/022

    摘要: An ignition coil of a dual ignition type that can prevent outputs from becoming unbalanced due to a difference in floating capacitance on wiring that connects secondary output terminals and ignition plugs together, thus realizing balanced outputs. A coil assembly housed in a housing as a coil case has a primary coil and secondary coils disposed concentrically with the primary coil. The secondary coils are comprised of two coils wound in opposite directions with the center of winding width being a boundary. The center of the winding width of the primary coil is shifted from the center of the winding width of the secondary coils by a predetermined width so as to balance outputs from the two secondary coils. A casting material is filled into a gap between the housing and the coil assembly and gaps which the coil assembly has.

    摘要翻译: 一种双点火型点火线圈,其可以防止输出由于将二次输出端子和火花塞连接在一起的布线上的浮动电容的差异而变得不平衡,从而实现平衡输出。 作为线圈壳体容纳在壳体中的线圈组件具有与初级线圈同心设置的初级线圈和次级线圈。 次级线圈由缠绕在相反方向上的两个线圈构成,绕组宽度的中心是边界。 初级线圈的绕组宽度的中心从次级线圈的绕线宽度的中心偏移预定的宽度,以平衡来自两个次级线圈的输出。 将铸造材料填充到壳体和线圈组件之间的间隙中以及线圈组件具有的间隙。

    Ignition coil having secondary coil assembly and connecting method for the same
    45.
    发明授权
    Ignition coil having secondary coil assembly and connecting method for the same 失效
    点火线圈具有次级线圈组装及其连接方法

    公开(公告)号:US07132917B2

    公开(公告)日:2006-11-07

    申请号:US11019945

    申请日:2004-12-23

    IPC分类号: H01F27/02

    摘要: An ignition coil includes a center core, a secondary coil, a primary coil, and an outer core. The secondary coil and the primary coil are substantially coaxially arranged on the outer circumferential side of the center core. The secondary coil includes a secondary winding that is wound around a secondary spool. The secondary spool has a high voltage bracket that includes a secondary terminal. The primary coil includes a primary winding that is wound around a primary spool. The outer core is arranged on the outer circumferential side in the ignition coil. The secondary terminal includes a first connecting portion, which is in a bulb shape, in the tip end. The first connecting portion connects with an end portion of the secondary winding. The first connecting portion is covered with an electrically insulative resin.

    摘要翻译: 点火线圈包括中心芯,次级线圈,初级线圈和外芯。 次级线圈和初级线圈基本同轴地布置在中心芯的外圆周侧上。 次级线圈包括缠绕在次级线轴上的次级绕组。 次级线轴具有包括次级端子的高电压支架。 初级线圈包括缠绕在主线轴上的初级绕组。 外芯设置在点火线圈的外周侧。 次级端子包括尖端中的灯泡形状的第一连接部。 第一连接部分与次级绕组的端部连接。 第一连接部分被电绝缘树脂覆盖。

    Alkylation of aromatics with removal of polymeric byproducts
    47.
    发明授权
    Alkylation of aromatics with removal of polymeric byproducts 有权
    芳族化合物的烷基化除去聚合物副产物

    公开(公告)号:US06169219A

    公开(公告)日:2001-01-02

    申请号:US09328839

    申请日:1999-06-09

    IPC分类号: C07C264

    CPC分类号: C07C2/66 C07C2521/12

    摘要: Detergent-quality linear alkylaromatics are recovered from an alkylation reactor effluent containing polymeric byproducts, such as dimers and trimers of the olefinic feedstock. The effluent stream passes to another reactor operating at a higher temperature than the first reactor. Heavy alkylate is separated from the detergent-quality linear alkylaromatics by conventional separation methods such as distillation. This invention decreases the concentration of polymeric byproducts in the linear alkylaromatics. The benefits of this invention include a higher linearity and/or a lower bromine index in the detergent-quality linear alkylaromatic product, as well as a lower color after sulfonation of the linear alkylbenzene sulfonate.

    摘要翻译: 从含有聚合副产物的烷基化反应器流出物(例如烯属原料的二聚体和三聚体)中回收洗涤剂质量的线性烷基芳烃。 流出物流进入在比第一反应器高的温度下操作的另一个反应器。 通过常规的分离方法如蒸馏,将重质烷基化物与洗涤剂质量的线性烷基芳烃分离。 本发明降低了线性烷基芳烃中聚合副产物的浓度。 本发明的优点包括洗涤剂质量线性烷基芳族产物中较高的线性和/或较低的溴指数,以及直链烷基苯磺酸盐磺化后的较低颜色。

    Process for continuous reaction and deparation using reactive
chromatography
    48.
    发明授权
    Process for continuous reaction and deparation using reactive chromatography 失效
    使用反应层析连续反应和分离的方法

    公开(公告)号:US5744683A

    公开(公告)日:1998-04-28

    申请号:US666713

    申请日:1996-06-18

    摘要: A process for the continuous isomerization of an alkane to produce an isomerized product through contacting the alkane with a simulated moving bed acting as a catalyst for isomerization and an adsorbent for the alkanes has been developed. The alkane may be n-butane and the isomerized product 2-methylpropane, the alkane may be n-pentane and the isomerized product 2-methylbutane or 2,2-dimethylpropane, the alkane may have from 6 up to about 8 carbon atoms with no more than one methyl branch and the isomerized product having the same number of carbon atoms and at least two methyl branches, or the reactant may be a mixture of the foregoing alkanes with the corresponding isomerized products being formed. In a zone of the simulated moving bed, the alkanes are catalytically isomerized to form the isomerized products. The unreacted alkanes are adsorbed, and the isomerized products are collected. In a first subsequent zone of the simulated moving bed, a large portion of the unreacted alkanes are desorbed using a desorbent. In a second subsequent zone of the simulated moving bed, residual adsorbed alkanes are desorbed using a mixture of desorbent and isomerized products, and the desorbed residual alkanes may be removed from the simulated moving bed or may be reacted to form additional isomerized products. The isomerized products are removed from the simulated moving bed and collected. The process may also be used to effect other chemical reactions with the concurrent separation of product.

    摘要翻译: 已经开发了通过使烷烃与用作异构化的催化剂的模拟移动床和用于烷烃的吸附剂使烷烃连续异构化以产生异构化产物的方法。 烷烃可以是正丁烷,异构化产物2-甲基丙烷,烷烃可以是正戊烷,异构化产物2-甲基丁烷或2,2-二甲基丙烷,烷烃可以具有6个至约8个碳原子,没有 多于一个甲基支链和具有相同数目的碳原子和至少两个甲基支链的异构化产物,或者反应物可以是前述烷烃与形成相应的异构化产物的混合物。 在模拟移动床的区域中,烷烃被催化异构化以形成异构化产物。 未反应的烷烃被吸附,收集异构化产物。 在模拟移动床的第一后续区域中,大部分未反应的烷烃使用解吸剂解吸附。 在模拟移动床的第二个随后的区域中,残余吸附的烷烃使用解吸剂和异构化产物的混合物解吸,并且解吸的残余烷烃可以从模拟的移动床中除去,或者可以反应形成另外的异构化产物。 将异构化产物从模拟移动床上取出并收集。 该方法也可用于通过产品的同时分离来实现其它化学反应。

    Internal combustion engine ignition system
    49.
    发明授权
    Internal combustion engine ignition system 失效
    内燃机点火系统

    公开(公告)号:US5609145A

    公开(公告)日:1997-03-11

    申请号:US371702

    申请日:1995-01-12

    IPC分类号: F02P3/02 F02P3/055

    CPC分类号: F02P3/0552 F02P3/02

    摘要: An ignition system for an internal combustion engine is provided which includes an ignition coil formed with a primary winding and a secondary winding and a switching element for interrupting a current flow through the primary winding of the ignition coil at given timing. The ignition coil has a secondary winding to primary winding turns ratio a which meets the condition of V.sub.D .multidot.a >V.sub.r where V.sub.r is a required voltage of a spark plug of the engine and V.sub.D is a breakdown voltage of the switching element which is greater than or equal to 450 V.

    摘要翻译: 提供了一种用于内燃机的点火系统,其包括形成有初级绕组和次级绕组的点火线圈和用于在给定的时刻中断通过点火线圈的初级绕组的电流的开关元件。 点火线圈具有次级绕组至次级绕组匝数比a,其满足VD xa> Vr的条件,其中Vr是发动机的火花塞的所需电压,VD是开关元件的击穿电压,其大于或 等于450 V.