Process for producing nitriles
    3.
    发明授权
    Process for producing nitriles 失效
    生产腈的工艺

    公开(公告)号:US5281745A

    公开(公告)日:1994-01-25

    申请号:US926173

    申请日:1992-08-07

    摘要: A process for producing a nitrile, which comprises subjecting an alkane and ammonia in the gaseous state to catalytic oxidation in the presence of a catalyst which satisfies the following conditions of (1) and (2):(1) the catalyst is represented by the empirical formula:Mo.sub.a V.sub.b Te.sub.c X.sub.x O.sub.n (1) wherein X is at least one element selected from the group consisting of Nb, Ta, W, Ti, Al, Zr, Cr, Mn, Fe, Ru, Co, Rh, Ni, Pd, Pt, Sb, Bi, B and Ce,______________________________________ when a = 1, b = 0.01 to 1.0, c = 0.01 to 1.0, x = 0.01 to 1.0, ______________________________________ and n is a number such that the total valency of the metal elements is satisfied; and(2) the catalyst has X-ray diffraction peaks at the following angles of 2.theta. in its X-ray diffraction pattern:______________________________________ Diffraction angles of 2.theta. (.degree.) ______________________________________ 22.1 .+-. 0.3 28.2 .+-. 0.3 36.2 .+-. 0.3 45.2 .+-. 0.3 50.0 .+-. 0.3. ______________________________________

    摘要翻译: 一种腈的制造方法,其特征在于,在满足以下(1)和(2)的条件的催化剂的存在下,使烷烃和气态氨进行催化氧化:(1)催化剂由 经验公式:MoaVbTecXxOn(1)其中X是选自Nb,Ta,W,Ti,Al,Zr,Cr,Mn,Fe,Ru,Co,Rh,Ni,Pd,Pt中的至少一种元素, Sb,Bi,B和Ce,-a = 1,-b = 0.01〜1.0,-c = 0.01〜1.0,-x = 0.01〜1.0,n为金属元素的总价 满意 和(2)催化剂在X射线衍射图中以2(θ)的相应角度具有X射线衍射峰:-1衍射角2(θ)(度)-22.1±0.3-28.2± 0.3-36.2±0.3-45.2±0.3-50.0±0.3。

    Process for producing nitriles
    5.
    发明授权
    Process for producing nitriles 失效
    生产硝基的方法

    公开(公告)号:US5231214A

    公开(公告)日:1993-07-27

    申请号:US880687

    申请日:1992-05-08

    IPC分类号: C07C253/24

    CPC分类号: C07C253/24

    摘要: A process for producing a nitrile, which comprises subjecting an alkane and ammonia in the gaseous state to catalytic oxidation in the presence of an oxide of the formula:Mo.sub.a V.sub.b Te.sub.c Nb.sub.d X.sub.x O.sub.n ( 1)wherein X is at least one element selected from the group consisting of Mg, Ca, Sr, Ba, Al, Ga, Tl, In, Ti, Zr, Hf, Ta, Cr, Mn, W, Fe, Ru, Co, Rh, Ni, Pd, Pt, Zn, Sn, Pb, As, Sb, Bi, La and Ce,when a=1,b=0.01 to 1.0,c=0.01 to 1.0,d=0 to 1.0, andx=0.0005 to 1.0,and n is a number such that the total valency of the metal elements is satisfied.

    Method for producing a nitrile
    6.
    发明授权
    Method for producing a nitrile 失效
    制备腈的方法

    公开(公告)号:US5534650A

    公开(公告)日:1996-07-09

    申请号:US372022

    申请日:1995-01-12

    CPC分类号: B01J8/1827 C07C253/24

    摘要: A method for producing a nitrile by a gas phase catalytic oxidation reaction of an alkane with ammonia in the presence of a catalyst, which comprises supplying the alkane and ammonia to an upper stream inlet of the catalyst layer, and separately supplying at least a part of the total amount of ammonia to a downstream position of the catalyst layer located downstream from the upper stream inlet of the catalyst layer.

    摘要翻译: 一种在催化剂存在下通过烷烃与氨的气相催化氧化反应生产腈的方法,其包括将烷烃和氨供应到催化剂层的上游入口,并分别供应至少一部分 催化剂层的下游位置处的氨的总量位于催化剂层的上游入口的下游。

    Method for the production of maleic anhydride
    7.
    发明授权
    Method for the production of maleic anhydride 失效
    马来酸酐生产方法

    公开(公告)号:US5449792A

    公开(公告)日:1995-09-12

    申请号:US376654

    申请日:1995-01-20

    摘要: A method for the production of maleic anhydride in which a hydrocarbon of 4 to 6 carbon atoms is subjected to a vapor phase catalytic oxidation reaction in the presence of a metal oxide catalyst, characterized in that the metal oxide catalyst includes a metal oxide containing Mo, V, Te and X (X representing one or more elements selected from the group consisting of Nb, Ta, W, Ti, Al, Zr, Cr, Mn, Fe, Ru, Co, Rh, Ni, Pd, Pt, Sb, Bi, B, In, P and Ce) as constituent elements thereof, and the proportion of Mo to the total metal elements in the metal oxide is 0.25 or greater in terms of the atomic ratio, and the atomic ratio of each of the other constituent elements V, Te and X with respect to Mo is in the range of 0.01-1.0.According to the method, the object maleic anhydride may be produced at a high yield using a hydrocarbon of 4 to 6 carbon atoms, particularly n-butane, as the starting material.

    摘要翻译: 一种生产马来酸酐的方法,其中在金属氧化物催化剂存在下,使具有4-6个碳原子的烃进行气相催化氧化反应,其特征在于,所述金属氧化物催化剂包括含有Mo, V,Te和X(X表示选自Nb,Ta,W,Ti,Al,Zr,Cr,Mn,Fe,Ru,Co,Rh,Ni,Pd,Pt,Sb, Bi,B,In,P和Ce)作为构成元素,并且Mo与金属氧化物中的总金属元素的比例以原子比计为0.25以上,其他成分 元素V,Te和X相对于Mo在0.01-1.0的范围内。 根据该方法,可以使用4〜6个碳原子的烃,特别是正丁烷作为原料,以高产率制备目标马来酸酐。

    LED DRIVE DEVICE AND LED ILLUMINATING DEVICE
    8.
    发明申请
    LED DRIVE DEVICE AND LED ILLUMINATING DEVICE 有权
    LED驱动器件和LED照明器件

    公开(公告)号:US20120306386A1

    公开(公告)日:2012-12-06

    申请号:US13153766

    申请日:2011-06-06

    申请人: Kazunori Oshima

    发明人: Kazunori Oshima

    IPC分类号: H05B37/02

    CPC分类号: H05B33/0887 H05B33/0812

    摘要: An LED drive device whose power dissipation can be effectively reduced without halting current supply to an LED row as well as an LED illuminating device with the LED drive device incorporated therein. When an LED 21A making up an LED row 3A has developed a short-circuit fault, a voltage corresponding to a forward voltage which has been applied to the faulty LED 21A is impressed additionally to an FET 31A for electric power consumption thereof to increase to not less than a certain value. At this time, a power limiting circuit 6A varies a potential, being a reference value of a constant current circuit 7A, at a connecting point between voltage dividing resistors 46A, 47A and then continues to supply a certain level of a current IF1 to the LED row 3A so as to keep the remaining fault-free LEDs 22A to 26A lighting. Consequently, in the event of a short-circuit fault of the LED 21A, the adverse effect caused by discontinuing the current supply to the LED row 3A can be swept away.

    摘要翻译: 一种LED驱动装置,其功率消耗可以有效降低,而不会停止对LED行的电流供应以及LED驱动装置并入其中的LED照明装置。 当构成LED行3A的LED 21A发生短路故障时,与施加到故障LED 21A的正向电压相对应的电压另外施加到FET 31A以供其消耗电力而增加到不 小于一定值。 此时,功率限制电路6A在分压电阻器46A,47A的连接点处改变作为恒流电路7A的基准值的电位,然后继续向LED提供一定电平的电流IF1 行3A,以便保持剩余的无故障LED 22A至26A照明。 因此,在LED 21A发生短路故障的情况下,可以将不连续向LED列3A供电的不利影响除去。

    Light emitting element drive device
    9.
    发明授权
    Light emitting element drive device 有权
    发光元件驱动装置

    公开(公告)号:US08779692B2

    公开(公告)日:2014-07-15

    申请号:US13445546

    申请日:2012-04-12

    IPC分类号: H05B37/02 H05B33/08

    CPC分类号: H05B33/0887 Y02B20/341

    摘要: A light emitting element drive device includes a light emitting unit that includes a light emitting element and that performs dimming based on a pulse width modulation (PWM) signal, a first switching element that is turned ON or OFF based on the PWM signal and that is connected in series to the light emitting unit, and a protection circuit that includes a charging circuit and a second switching element. The second switching element is turned ON when a first voltage obtained by a charging operation of the charging circuit is equal to or more than a first predetermined value. The charging circuit discharges electric charge through the first switching element when a second voltage between input and output terminals of the first switching element drops. The first switching element is turned OFF despite the existence of the PWM signal when the second switching element is turned ON.

    摘要翻译: 发光元件驱动装置包括:发光单元,其包括发光元件,并且基于脉宽调制(PWM)信号进行调光;基于PWM信号接通或断开的第一开关元件,即, 串联连接到发光单元,以及保护电路,其包括充电电路和第二开关元件。 当通过充电电路的充电操作获得的第一电压等于或大于第一预定值时,第二开关元件接通。 当第一开关元件的输入和输出端之间的第二电压下降时,充电电路通过第一开关元件放电电荷。 当第二开关元件接通时,第一开关元件关闭,尽管存在PWM信号。

    CATALYST FOR REDUCING NITROGEN OXIDES AND METHOD FOR PRODUCING THE SAME
    10.
    发明申请
    CATALYST FOR REDUCING NITROGEN OXIDES AND METHOD FOR PRODUCING THE SAME 审中-公开
    用于还原氮氧化物的催化剂及其生产方法

    公开(公告)号:US20120020875A1

    公开(公告)日:2012-01-26

    申请号:US13188647

    申请日:2011-07-22

    摘要: The object is to provide an exhaust gas reduction catalyst that exhibit high nitrogen oxide reduction performance, and to provide a simple and efficient method for producing the catalyst, in which the amount of the waste liquid is reduced, further, an object of the invention is to provide a zeolite-containing catalyst for reducing nitrogen oxides, which does not use an expensive noble metal or the like and which has high nitrogen oxide reduction performance. The present invention relates to a catalyst for reducing nitrogen oxides, which comprises: zeolite at least containing an aluminium atom and a phosphorus atom in the framework thereof; and a metal supported on the zeolite, wherein a coefficient of variation of intensity of the metal is at least 20%, when performing an elemental mapping of the metal in the catalyst with an electron probe microanalyzer, and, a catalyst for reducing nitrogen oxides, which comprises the zeolite containing at least a silicon atom, a phosphorus atom and an aluminium atom, and having an adsorption retention rate of at least 80% in a water vapor cyclic adsorption/desorption test at 90° C.

    摘要翻译: 本发明的目的是提供一种具有高氮氧化物还原性能的废气还原催化剂,并且提供一种制备催化剂的简单有效的方法,其中废液的量减少,此外,本发明的目的是 以提供不使用昂贵的贵金属等并且具有高氮氧化物还原性能的还原氮氧化物的含沸石催化剂。 本发明涉及一种用于还原氮氧化物的催化剂,其包括:在其骨架中至少含有铝原子和磷原子的沸石; 和负载在沸石上的金属,其中当用电子探针显微分析仪进行催化剂中金属的元素映射时,金属的强度变化系数为至少20%,还原氮氧化物的催化剂, 其包含至少含有硅原子,磷原子和铝原子的沸石,并且在90℃的水蒸汽循环吸附/解吸试验中具有至少80%的吸附保持率。