Filter for analog signals
    3.
    发明授权
    Filter for analog signals 失效
    过滤模拟信号

    公开(公告)号:US4320362A

    公开(公告)日:1982-03-16

    申请号:US58578

    申请日:1979-07-18

    IPC分类号: H03H15/02 H03H19/00 G11C27/00

    CPC分类号: H03H15/02 H03H19/004

    摘要: In a filter in which, in order to obtain the desired filter characteristic, a weighted sum of different signals is formed, it is proposed in accordance with the invention that for the formation of said sum means are employed which are constituted by capacitor circuits, which during a first time interval are each charged by said signals, and by a connection circuit for the formation, during a second time interval, of the equivalent of a single capacitor across whose plates the weighted-sum signal appears.The invention is used for the filtration of sampled analog signals.

    摘要翻译: 在其中为了获得期望的滤波器特性而形成不同信号的加权和的滤波器中,根据本发明提出,为了形成由电容器电路构成的所述和装置, 在第一时间间隔期间,由所述信号充电,并且在第二时间间隔期间通过用于形成的连接电路相当于其板上的单个电容器的加权和信号出现。 本发明用于采样模拟信号的过滤。

    Butene-1 production by dimerization of ethylene comprising an improved
spent catalyst removal section
    7.
    发明授权
    Butene-1 production by dimerization of ethylene comprising an improved spent catalyst removal section 失效
    通过乙烯二聚生成丁烯-1,其包含改进的废催化剂除去部分

    公开(公告)号:US5728912A

    公开(公告)日:1998-03-17

    申请号:US639610

    申请日:1996-04-29

    IPC分类号: C07C2/08 C07C11/08 C07C3/21

    CPC分类号: C07C11/08 C07C2/08

    摘要: The process of butene-1 production comprises the steps of: a) sending a inhibited catalyst containing reactor effluent to a flash section where the pressure is decreased by about 0.1 MPa to about 2 MPa, and obtaining a first gaseous phase containing ethylene and butene-1 and a first liquid phase containing the inhibited catalyst; b) sending the first liquid phase from step a) to at least one vaporisation section which allows the separation of a second gaseous phase containing butene-1 and ethylene from a second liquid phase containing the inhibited catalyst; c) sending the second liquid phase from step b) to at least one thin film evaporation section which allows the separation of a third gaseous phase containing ethylene, butene-1 and some other heavier hydrocarbon products from a concentrated inactivated catalyst solution and, d) collecting the first, second and third gaseous phases to form a gaseous reactor effluent substantially free of spent catalyst.

    摘要翻译: 丁烯-1生产的方法包括以下步骤:a)将含有反应器流出物的抑制催化剂送至闪蒸部分,其中压力降低约0.1MPa至约2MPa,并获得含有乙烯和丁烯-1的第一气相, 1和含有抑制催化剂的第一液相; b)将第一液相从步骤a)发送到至少一个蒸发段,其允许从含有抑制催化剂的第二液相中分离含有丁烯-1和乙烯的第二气相; c)将第二液相从步骤b)送入至少一个薄膜蒸发部分,其允许从浓缩的灭活的催化剂溶液中分离含有乙烯,丁烯-1和一些其它较重烃产物的第三气相,和d) 收集第一,第二和第三气相以形成基本上不含废催化剂的气态反应器流出物。

    Gasoline additives containing alkoxylated imidazo-oxazoles
    8.
    发明授权
    Gasoline additives containing alkoxylated imidazo-oxazoles 失效
    含有烷氧基化咪唑并恶唑的汽油添加剂

    公开(公告)号:US5472457A

    公开(公告)日:1995-12-05

    申请号:US252993

    申请日:1994-06-02

    摘要: Compounds with general formula ##STR1## where R.sup.1 represents a hydrogen atom or a hydrocarbon group containing 1 to 40 carbon atoms. R.sup.2 represents a hydrogen atom or a hydrocarbon group containing 1 to 12 carbon atoms, A, B, and C, which may be identical or different, each represent a divalent hydrocarbon group containing 2 to 6 carbon atoms, n is a whole number from 5 to 50, m and p are each zero or a whole number from 1 to 25, and the sum n+m+p is a whole number from 5 to 50.These compounds are used in multifunctional additive compositions for fuels used in internal combustion engines, in particular spark ignition engines, in admixture with at least one compound selected from the group formed by detergent-dispersant compounds, and at least one compound selected from the group formed by mineral or synthetic lubricating oils and polyglycols which are soluble in said fuels.

    摘要翻译: 具有通式[IMAGE] [I]的化合物,其中R 1表示氢原子或含有1至40个碳原子的烃基。 R2表示氢原子或含有1〜12个碳原子的烃基,A,B和C可以相同或不同,分别表示2〜6个碳原子的二价烃基,n为5以上的整数 至50,m和p各自为0或1至25的整数,并且和n + m + p为5至50的整数。这些化合物用于内燃机中使用的燃料的多功能添加剂组合物中 特别是火花点火发动机,与选自由洗涤剂分散剂化合物形成的组中的至少一种化合物混合,以及至少一种选自可溶于所述燃料的矿物或合成润滑油和聚二醇形成的化合物。

    Process for purifying a C.sub.4 and/or C.sub.5 hydrocarbon cut
containing water and dimethyl ether as impurities
    9.
    发明授权
    Process for purifying a C.sub.4 and/or C.sub.5 hydrocarbon cut containing water and dimethyl ether as impurities 失效
    用于纯化含有水和二甲醚作为杂质的C4和/或C5烃馏分的方法

    公开(公告)号:US4474647A

    公开(公告)日:1984-10-02

    申请号:US371341

    申请日:1982-04-23

    IPC分类号: C07C7/04 C07C7/05

    CPC分类号: C07C7/05 C07C7/04

    摘要: A C.sub.4 and/or C.sub.5 olefinic hydrocarbon cut, containing dimethyl ether and water as impurities, in a relative proportion of dimethyl ether to water of at most 5:1, is purified in a distillation zone where it is introduced at an intermediate level, distant from the top or from the bottom thereof by at least 3 theoretical plates, optionally with a stripping gas, and separated into a overhead fraction comprising an aqueous liquid phase and a hydrocarbon liquid phase at least partially recycled as reflux to the upper part of the distillation zone, and a bottom fraction formed of the purified C.sub.4 and/or C.sub.5 olefinic cut.

    摘要翻译: 将二甲醚和水作为杂质的C4和/或C5烯烃烃馏分在二甲醚与水的相对比例至多为5:1的蒸馏区进行纯化,在蒸馏区中将其以中间水平 从顶部或底部至少3个理论塔板,任选地带有汽提气体,并分离成包含水性液相和烃液相的塔顶馏分,其至少部分地作为回流再循环到蒸馏的上部 区和由纯化的C4和/或C5烯烃切割形成的底部馏分。