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9 条记录 (耗时 0.017 秒)

    Preparation of metallic pigments having a metallic luster
    2.
    发明授权
    Preparation of metallic pigments having a metallic luster 失效
    具有金属光泽的金属颜料的制备

    公开(公告)号：US4328042A

    公开(公告)日：1982-05-04

    申请号：US215759

    申请日：1980-12-12

    申请人： Werner Ostertag ,  Knut Bittler ,  Gustav Bock

    发明人： Werner Ostertag ,  Knut Bittler ,  Gustav Bock

    IPC分类号： C09C1/00 ,  C09C1/62 ,  C09C3/00 ,  C09C3/06 ,  C09C1/22

    CPC分类号： C09C1/62 ,  C01P2004/20 ,  C01P2004/84

    摘要： To prepare a colored pigment which has a metallic luster and consists of a metallic core whose surface is at least partially covered with an iron oxide, iron pentacarbonyl is oxidized with oxygen in a fluidized bed of the metallic cores at above 100.degree. C. The amount of iron pentacarbonyl vapor introduced into the fluidized bed must not exceed 5% by volume, based on the total gases introduced into the fluidized bed over the same period of time.

    摘要翻译： 为了制备具有金属光泽并由其表面至少部分被氧化铁覆盖的金属芯组成的着色颜料，在高于100℃的金属芯的流化床中，五羰基铁被氧氧化。量 基于在同一时间段内引入流化床的总气体，导入流化床中的铁五羰基蒸汽的含量不能超过5％（体积）。

    Yellow pigment containing bismuth vanadate and having the composition BiVO.sub.4.xBi.sub.2 MoO.sub.6.yBi.sub.2 WO.sub.6
    3.
    发明授权
    Yellow pigment containing bismuth vanadate and having the composition BiVO.sub.4.xBi.sub.2 MoO.sub.6.yBi.sub.2 WO.sub.6 失效
    含有钒酸铋的黄色颜料，其组成为BiVO4.xBi2MoO6.yBi2WO6

    公开(公告)号：US4455174A

    公开(公告)日：1984-06-19

    申请号：US411864

    申请日：1982-08-26

    申请人： Henning Wienand ,  Werner Ostertag ,  Knut Bittler

    发明人： Henning Wienand ,  Werner Ostertag ,  Knut Bittler

    IPC分类号： C09C1/00

    CPC分类号： C09C1/0006 ,  C01P2006/12 ,  C01P2006/60

    摘要： Yellow pigments containing bismuth vanadate and having the compositionBiVO.sub.4.xBi.sub.2 MoO.sub.6.yBi.sub.2 WO.sub.6where x is from 0.6 to 2.25 and y is from 0 to 0.1, are prepared by a process in which a solution containing a bismuth(III) salt, a vanadate and a molybdate is acidified until the pH is

    摘要翻译： 含有钒酸铋并且具有组成BiVO4.xBi2MoO6.yBi2WO6的黄色颜料，其中x为0.6至2.25，y为0至0.1，通过其中含有铋（III）盐，钒酸盐和 将钼酸盐酸化直到pH <0，然后通过可能含有或可以不含有溶解钨的碱性溶液将酸性溶液的pH值在20℃至95℃下升至0.1-3.5（ VI）化合物，将沉淀的产物和反应溶液在50至100℃下放置30至120分钟，然后彼此分离，并将产物洗涤，干燥并在300℃加热 至800℃

    Spinel-containing electrode and process for its production
    4.
    发明授权
    Spinel-containing electrode and process for its production 失效
    含尖晶石的电极及其生产工艺

    公开(公告)号：US4411761A

    公开(公告)日：1983-10-25

    申请号：US276985

    申请日：1981-06-24

    申请人： Hans Roos ,  Hugo Boehn ,  Knut Bittler ,  Volker Kiener ,  Gerd Wunsch

    发明人： Hans Roos ,  Hugo Boehn ,  Knut Bittler ,  Volker Kiener ,  Gerd Wunsch

    IPC分类号： C25B11/06 ,  C23C4/06 ,  C25B11/04 ,  C25C7/02 ,  C25B1/26

    CPC分类号： C25B11/0478

    摘要： In an electrode suitable for electrolysis of aqueous sodium chloride or potassium chloride solutions, at least the outer layer contains spinels, specifically a mixture of the individual spinels of iron and of cobalt, the weight ratio of iron spinels: cobalt spinels being from 30:70 to 90:10.The electrodes are produced by applying a powder mixture of iron spinel and cobalt spinel to a substrate by a plasma spraying process wherein argon is used as the plasma gas and the spraying energy is from 6 to 30 kW.

    摘要翻译： 在适用于电解氯化钠或氯化钾溶液的电极中，至少外层含有尖晶石，特别是铁和钴的单个尖晶石的混合物，铁尖晶石的重量比：钴尖晶​​石为30:70 到90:10。 通过使用氩作为等离子体气体并且喷射能量为6至30kW的等离子体喷涂方法将尖晶石铁和尖晶石铁的粉末混合物施加到基板上来制造电极。

    Recovery of methylglyoxal acetal by plural stage distillation with intermediate phase separation
    6.
    发明授权
    Recovery of methylglyoxal acetal by plural stage distillation with intermediate phase separation 失效
    通过中间相分离的多级蒸馏回收甲基乙二醛缩醛

    公开(公告)号：US3956074A

    公开(公告)日：1976-05-11

    申请号：US487235

    申请日：1974-07-10

    申请人： Knut Bittler

    发明人： Knut Bittler

    IPC分类号： C07C41/42 ,  C07C43/30 ,  B01D3/00 ,  B01D3/10 ,  B01D3/38

    CPC分类号： C07C45/00

    摘要： A process for the recovery of methylglyoxal acetal from a reaction mixture which has been obtained in the reaction of acetone with an alcohol and a nitrosation agent or oxidizing agent in the presence of an acid catalyst followed by neutralization which comprises diluting the neutralized reaction mixture with such an amount of water that a homogeneous solution is formed, subsequent distillation in a first column in which a mixture of acetone, alcohol and solvent is removed overhead and returned direct to the synthesis and an azeotrope of methylglyoxal acetal, water and high-boilers is withdrawn as a side stream, condensation of the azeotrope thus obtained and separation of the phase rich in methylglyoxal acetal, subsequent distillation of the phase rich in methylglyoxal acetal thus obtained in a second column in which purified methylglyoxal acetal is withdrawn as a side stream and the overhead and bottoms products are returned with the feed to the first column, pure methylglyoxal acetal being obtained as the overhead product in a third column. Methylglyoxal acetal is suitable for the production of animal feed supplements.

    摘要翻译： 从丙酸与醇和亚硝化剂或氧化剂在酸催化剂的存在下反应获得的反应混合物中回收甲基乙二醛缩醛的方法，然后中和，其中包括用这样的中和反应混合物 一次形成均匀溶液的水，随后在第一塔中进行蒸馏，其中丙酮，醇和溶剂的混合物在塔顶馏出并直接返回合成，甲基乙二醛缩醛，水和高锅炉的共沸物被取出 作为侧流，由此获得的共沸物的冷凝和富含甲基乙二醛缩醛的相的分离，随后在第二塔中蒸馏富含甲基乙二醛缩醛的相，其中纯化的甲基乙二醛缩醛作为侧流取出，并且塔顶 并且将底部产物与第一塔的进料一起返回，即纯甲基乙二醛乙酸酯 在第三列中作为塔顶产物得到。 甲基乙二醛缩醛适用于生产动物饲料添加剂。

    Gas-evolving metal electrode
    7.
    发明授权
    Gas-evolving metal electrode 失效
    气体放出金属电极

    公开(公告)号：US4557818A

    公开(公告)日：1985-12-10

    申请号：US630184

    申请日：1984-07-12

    申请人： Hans Roos ,  Dieter Schlaefer ,  Hugo Boehn ,  Knut Bittler ,  Heinz Kilthau

    发明人： Hans Roos ,  Dieter Schlaefer ,  Hugo Boehn ,  Knut Bittler ,  Heinz Kilthau

    IPC分类号： C25B11/02

    CPC分类号： C25B11/02

    摘要： A gas-evolving metal electrode consists of profiles which are arranged parallel to one another in a horizontal plane and are connected to one another by means of current distributors. The profile surfaces which face the counter-electrode are curved, the curvature at the sides being more pronounced than that in the middle. The profile is terminated above by means of two lateral surfaces tangential to the curvature. The electrode is useful as an anode for mercury cells for the chloralkali electrolysis.

    摘要翻译： 气体放出的金属电极由在水平面中彼此平行布置并且通过电流分配器彼此连接的轮廓组成。 面对对电极的轮廓表面是弯曲的，侧面的曲率比中间的曲率更显着。 轮廓通过与曲率相切的两个侧表面终止在上面。 该电极用作氯碱电解用汞电池的阳极。