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    Slip containing zirconium dioxide and aluminum oxide and shaped body obtainable therefrom
    21.
    发明授权
    Slip containing zirconium dioxide and aluminum oxide and shaped body obtainable therefrom 失效
    含有二氧化锆和氧化铝的滑动体和可从其得到的成型体

    公开(公告)号：US07700034B2

    公开(公告)日：2010-04-20

    申请号：US11913412

    申请日：2006-04-27

    申请人： Monika Oswald ,  Klaus Deller ,  Wolfgang Kollenberg ,  Dieter Nikolay

    发明人： Monika Oswald ,  Klaus Deller ,  Wolfgang Kollenberg ,  Dieter Nikolay

    IPC分类号： B28B1/00 ,  B28B3/00 ,  B28B5/00 ,  C04B33/32 ,  C04B33/36 ,  C04B35/64

    CPC分类号： C04B35/119

    摘要： Slip containing at least one aluminium oxide powder and at least one unstabilized zirconium dioxide powder, wherein a) the zirconium dioxide powder i) has a mean particle diameter of less than 300 nm, ii) shows only the monoclinic phase and the tetragonal phase in the X-ray diffraction pattern, with the proportion of tetragonal phase at room temperature being from 20 to 70%, and iii) is present in a proportion of from 2 to 20% by weight, based on the total amount of the slip, b) the aluminium oxide powder i) has a mean particle diameter of more than 300 nm and ii) is present in a proportion of from 80 to 98% by weight, based on the total amount of the slip, and c) the solids content, as the sum of aluminium oxide and zirconium dioxide, is from 50 to 85% by weight, based on the total amount of the slip.

    摘要翻译： 含有至少一种氧化铝粉末和至少一种不稳定的二氧化锆粉末的滑动剂，其中a）二氧化锆粉末i）的平均粒径小于300nm，ii）仅显示单斜晶相和四方相 X射线衍射图，四方相在室温下的比例为20〜70％，和iii）以基于滑移总量的2〜20重量％的比例存在，b） 氧化铝粉末i）具有大于300nm的平均粒径，和ii）以基于滑移总量的80至98重量％的比例存在，以及c）固体含量，如 氧化铝和二氧化锆的总和为50〜85重量％，基于滑动总量。

    Molded articles based on pyrogenically produced mixed-oxide systems of silicon dioxide and aluminum oxide, a method for manufacturing them and their use
    26.
    发明授权
    Molded articles based on pyrogenically produced mixed-oxide systems of silicon dioxide and aluminum oxide, a method for manufacturing them and their use 失效
    基于热解产生的二氧化硅和氧化铝的混合氧化物体系的成型制品，其制造方法及其用途

    公开(公告)号：US5002918A

    公开(公告)日：1991-03-26

    申请号：US488382

    申请日：1990-02-23

    申请人： Klaus Deller ,  Rainhard Klingel ,  Helmfried Krause ,  Klaus-P. Bauer

    发明人： Klaus Deller ,  Rainhard Klingel ,  Helmfried Krause ,  Klaus-P. Bauer

    IPC分类号： C04B38/06 ,  B01J21/12 ,  B01J32/00 ,  B01J35/10 ,  B01J37/00 ,  C04B35/14

    CPC分类号： B01J37/0009 ,  B01J21/12

    摘要： A molded; i.e. pressed, article based on a pyrogenically produced system of mixed oxides of silicon dioxide and aluminum oxide and having the following physical-chemical features:______________________________________ pellet diameters 2 to 15 mm BET surface area according to 90 to 200 m.sup.2 /g DIN 66131 pore volume 0.6 to 1.3 ml/g pore size distribution no pores with 75% by weight of SiO.sub.2, remainder Al.sub.2 O.sub.3 ______________________________________ These molded articles are manufactured by homogenizing a pyrogenically produced system of mixed oxides of silicon dioxide and aluminum oxide with graphite and/or kaolin, urea, sugar, starch, glaze frit powder and/or microcrystalline wax while water is being added, by drying the mixture at a temperature between 80.degree. and 120.degree. C. and then comminuting it into a powder that next is pressed into molded articles and then is annealed for 0.5 to 6 h at a temperature between 400.degree. and 1050.degree. C. The molded articles are used as catalyst-supporters or as catalysts.

    摘要翻译： 成型; 即基于由二氧化硅和氧化铝的混合氧化物产生的热解产生体系的物品，具有以下物理化学特征： - 直径2至15mm -BET表面积，根据90至200m 2 / g -DIN 66131 - 孔体积0.6至1.3ml / g - 孔径分布无5- 5nm直径的孔，至少75％的孔在5至40nm的范围内 - 冲击强度30至120N-组成> 75 SiO 2重量％，余量为Al 2 O 3。这些模塑制品通过将石英和/或高岭土，尿素，糖，淀粉，釉料粉末和/或微晶的二氧化硅和氧化铝的混合氧化物的热解产生体系均质化 通过在80〜120℃的温度下干燥混合物，然后将其粉碎成粉末，然后将其压制成模制品，然后在400℃的温度下退火0.5至6小时，同时加入水 DEG和1050℃ 颗粒用作催化剂载体或催化剂。

    Process for the production of 1,2-diols
    27.
    发明授权
    Process for the production of 1,2-diols 失效
    生产1,2-二醇的方法

    公开(公告)号：US4482760A

    公开(公告)日：1984-11-13

    申请号：US552106

    申请日：1983-11-16

    申请人： Axel Kleemann ,  Klaus Deller ,  Karlheinz Drauz ,  Bernd Lehmann

    发明人： Axel Kleemann ,  Klaus Deller ,  Karlheinz Drauz ,  Bernd Lehmann

    IPC分类号： C07C43/13 ,  B01J23/00 ,  B01J31/00 ,  C07B61/00 ,  C07C27/00 ,  C07C29/00 ,  C07C31/20 ,  C07C33/26 ,  C07C41/00 ,  C07C67/00 ,  C07D307/42 ,  C07C7/00

    CPC分类号： C07C29/00

    摘要： 1,2-Diols of the formula: ##STR1## where R.sub.1 and R.sub.2 are hydrogen, alkyl of 1 to 10 carbon atoms or such as alkyl substituted by a halogen, a hydroxy group, a phenyl group, a methoxy group, or an ethoxy group, a phenyl group or a furyl group or R.sub.1 and R.sub.2 together form an alkylene group of 2 to 7 carbon atoms are formed by hydrogenating a correspondingly substituted cyanohydrin in an aqueous medium first in the presence of a hydrogenation catalyst and an acid at a temperature between -20.degree. and +25.degree. C. and a hydrogen pressure of less than 10 bar until per mole of cyanohydrin employed there is taken up one mole of hydrogen and then the hydrogenation continued to the end of the absorption of hydrogen in the presence of metallic nickel at a temperature between 30.degree. and 100.degree. C. and a hydrogen pressure between 10 and 150 bar.

    摘要翻译： 具有下式的1,2-二醇：其中R 1和R 2是氢，1至10个碳原子的烷基或被卤素，羟基，苯基，甲氧基， 或乙氧基，苯基或呋喃基或R 1和R 2一起形成2至7个碳原子的亚烷基通过在氢化催化剂和酸存在下首先在水性介质中氢化相应地取代的羟腈而形成 在-20℃至+25℃的温度和小于10巴的氢气压力下，直到每摩尔使用的氰醇为止，吸收1摩尔氢气，然后氢化继续到氢气吸收的最后 金属镍的存在温度在30℃至100℃之间，氢气压力在10至150巴之间。