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    • 8. 发明授权
    • Ammoxidation catalyst for the production of acrylonitrile from propylene
and process for producing the same
    • 用于从丙烯生产丙烯腈的氨氧化催化剂及其制备方法
    • US4290922A
    • 1981-09-22
    • US134053
    • 1980-03-26
    • Sumio UmemuraKyoji OhdanMikio HidakaToshio Kurafuji
    • Sumio UmemuraKyoji OhdanMikio HidakaToshio Kurafuji
    • B01J23/88C07B61/00C07C67/00C07C253/00C07C255/08B01J21/06B01J23/24
    • B01J23/8872B01J23/8876B01J23/8877B01J23/8878C07C253/26Y02P20/52
    • A catalyst for the ammoxidation of propylene to prepare acrylonitrile with a high yield thereof comprising an oxide composition of the empirical formula (I)Mo.sub.a Co.sub.b Ni.sub.c Fe.sub.d Bi.sub.e V.sub.f Ca.sub.g K.sub.h X.sub.i Si.sub.j O.sub.k (I)wherein X is zirconium and/or chromium, the subscripts a, b, c, d, e, f, g, h, i and j respectively denote the number of the respective atoms of the elements, when a=10, b=0 to 8, c=0 to 8, (b+c)=2 to 10, d=0.3 to 7, e=0.01 to 3, f=0.01 to 2, g=0.01 to 5, h=0.05 to 0.5, i=0 to 2, j=10 to 50, and the subscript k denotes the number of oxygen atoms which satisfies the average valency of the elements other than oxygen and the ratio a:k being in a range of 10:30 to 80, which catalyst is prepared by preparing an aqueous slurry containing respective element-containing compounds, by spray drying the aqueous slurry to prepare a dried solid precursory catalyst and, finally, by calcining the precursory catalyst as a temperature of from 500.degree. to 750.degree. C. to provide an activated catalyst.
    • 用于丙烯氨氧化以制备丙烯腈的高产率的催化剂,其包含经验式(I)的氧化物组合物,其中X是锆和/或铬,下标a,b,c,d,e的MoaCobNicFedBieVfCagKhXiSijOk(I) 当a = 10,b = 0〜8,c = 0〜8,(b + c)= 2〜10时,f,g,h,i,j分别表示各元素的原子数,d = 0.3〜7,e = 0.01〜3,f = 0.01〜2,g = 0.01〜5,h = 0.05〜0.5,i = 0〜2,j = 10〜50,下标k表示氧数 原子,其满足除氧之外的元素的平均化合价,a:k的比例在10:30至80的范围内,该催化剂通过制备含有各含元素化合物的含水浆料,通过喷雾干燥水溶液 浆料以制备干燥的固体前体催化剂,最后通过在500℃至750℃的温度下煅烧前体催化剂以提供活化的催化剂。
    • 10. 发明授权
    • Synchronous switching apparatus for use with a multiple phase power system
    • 用于多相电力系统的同步开关装置
    • US06392390B1
    • 2002-05-21
    • US09508364
    • 2000-03-10
    • Hiroki ItoHaruhiko KohyamaMikio Hidaka
    • Hiroki ItoHaruhiko KohyamaMikio Hidaka
    • G05F170
    • H01H9/563
    • A synchronous switching apparatus for detecting a source voltage of each phase to close each phase at an electrical phase angle predetermined for each phase, including switching devices 1a-1c provided one for each phase for opening and closing an impedance load, switching devices 2a-2c for closing and opening the switching devices 1a-1c for each phase, measuring transformers 5a-5c for measuring source voltages of the respective phases and phase-to-phase voltages, and phase control devices 42 each for issuing a command for energizing the impedance load at an electrical phase angle in a range predetermined for each phase, when detecting a zero point of a source voltage of each phase or a zero point of each phase-to-phase voltage.
    • 一种同步开关装置,用于检测各相的源极电压,以每相预定的电相角关闭各相,包括为每个相设置的用于打开和闭合阻抗负载的开关装置1a-1c,开关装置2a-2c 用于关闭和打开每相的开关装置1a-1c,用于测量各相的源极电压的测量用变压器5a-5c和相间电压,以及各自用于发出用于向阻抗负载供电的指令的相位控制装置42 当检测到每个相的源电压的零点或每个相间电压的零点时,以每个相位预定的范围内的电相角。