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    • 2. 发明授权
    • Hydrogenation catalyst, a process for its preparation, and use thereof
    • 氢化催化剂,其制备方法及其用途
    • US5498587A
    • 1996-03-12
    • US217151
    • 1994-03-24
    • Gregor DeckersGerhard DiekhausBernd DorschCarl D. FrohningGerhardt HornHorst B. Horrig
    • Gregor DeckersGerhard DiekhausBernd DorschCarl D. FrohningGerhardt HornHorst B. Horrig
    • B01J21/16B01J23/755B01J23/78B01J32/00B01J35/10B01J37/18C07B61/00C07C29/141C07C31/10C07C31/12C09K3/00B01J21/10B01J23/04
    • B01J35/10B01J23/755B01J23/78C07C29/141C07C31/10C07C31/12B01J35/0053B01J35/1014B01J35/1019B01J35/1038B01J35/1042B01J35/108
    • A hydrogenation catalyst comprising 25 to 50% by weight of nickel (metallic) 10 to 35% by weight of nickel oxide 4 to 12% by weight of magnesium oxide 1 to 5% by weight of sodium oxide the remainder being a water-insoluble support material,wherein the total of nickel and nickel oxide is 40% to 70% by weight, and the catalyst has a surface area, determined by BET, of 80 to 200 m.sup.2 /g and a total pore volume of 0.35 to 0.6 ml/g. The total pore volume is made up of 30% to 60% by volume from pores having pore radii of .ltoreq.40 .ANG., 4% to 10% by volume from pores having pore radii of >40 to 300 .ANG., and 30% to 60% by volume from pores having pore radii of >300 to 5000 .ANG..A process for preparing the hydrogenation catalyst which comprises preparing, in a precipitation step, a green catalyst from a nickel salt, a magnesium salt, sodium carbonate, and the support material, separating off the mother liquor and partially washing the precipitate, slurrying the green catalyst in alkali solution, separating it from the liquid phase, drying it, and contacting the dried green catalyst with hydrogen until 48% to 86% by weight of the total nickel content is present in metallic form.The hydrogenation catalyst of the invention is particularly suitable for the hydrogenation of propanal, n-butanal, and i-butanal, especially at temperatures between 100.degree. and 160.degree. C.
    • 一种氢化催化剂,其包含25-50%重量的镍(金属),10-35%(重量)的氧化镍,4至12%(重量)的氧化镁,1至5%(重量)的氧化钠,其余为不溶于水的载体 材料,其中镍和氧化镍的总量为40重量%至70重量%,并且催化剂具有由BET测定的表面积为80至200m 2 / g,总孔体积为0.35至0.6ml / g 。 总孔体积由孔径为40μm〜40μm的孔径为4〜10体积%的孔径为30〜60体积%,孔径为40〜300埃的孔径为30〜 60%体积的孔径为> 300至5000的孔。 一种制备氢化催化剂的方法,包括在沉淀步骤中,从镍盐,镁盐,碳酸钠和载体材料中制备绿色催化剂,分离母液并部分洗涤沉淀物,将绿色 碱性溶液中的催化剂,将其与液相分离,干燥,并将干燥的生坯催化剂与氢气接触,直到总镍含量的48重量%至86重量%以金属形式存在。 本发明的氢化催化剂特别适用于丙醛,正丁醛和异丁醛的加氢,特别是在100至160℃的温度下。
    • 4. 发明授权
    • Semiconductor force/torque sensor
    • 半导体力/转矩传感器
    • US06450040B1
    • 2002-09-17
    • US09600422
    • 2000-08-22
    • Bernd DorschHans-Peter HoheDieter Seitzer
    • Bernd DorschHans-Peter HoheDieter Seitzer
    • G01B716
    • G01L3/10G01L1/18
    • A force/torque sensor has a semiconductor region which is adapted to be subjected to a force or torque. Two control electrodes are provided on a first and a second side of the semiconductor region, the sides being arranged in spaced, opposed relationship with one another, and a current through the semiconductor region being producible between the control electrodes. Two sensor electrodes are provided on a third and a fourth side of the semiconductor region, the sides being also arranged in spaced, opposed relationship with one another and extending essentially at right angles to said first and second sides. A force or torque applied to the semiconductor region is determinable by detecting a voltage present between the sensor electrodes when a current flows between the control electrodes. The semiconductor region is formed by the channel of a field effect transistor, the drain an source electrodes of said field effect transistor defining the control electrodes.
    • 力/扭矩传感器具有适于受到力或扭矩的半导体区域。 两个控制电极设置在半导体区域的第一和第二侧上,这些侧面以彼此间隔开的对置关系布置,并且通过半导体区域的电流可在控制电极之间产生。 两个传感器电极设置在半导体区域的第三和第四侧上,这些侧面也以彼此间隔开的对置关系布置并基本上与所述第一和第二侧基本成直角地延伸。 施加到半导体区域的力或扭矩可以通过在电流在控制电极之间流动时检测传感器电极之间的电压来确定。 半导体区域由场效应晶体管的沟道形成,漏极由所述场效应晶体管的源电极限定控制电极。