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    Process for producing the magnesium salt of 3-nitro-naphthalene-1,5-disulfonic acid (nitro-Armstrong's acid)
    1.
    发明授权
    Process for producing the magnesium salt of 3-nitro-naphthalene-1,5-disulfonic acid (nitro-Armstrong's acid) 失效
    制备3-硝基 - 萘-1,5-二磺酸镁盐（硝基 - 阿姆斯壮酸）的方法

    公开(公告)号：US4348334A

    公开(公告)日：1982-09-07

    申请号：US113412

    申请日：1980-01-18

    申请人： Bernhard Albrecht ,  Hans Frey ,  Vinzenz Habermacher ,  Horst Behre ,  Lutz Kienitz ,  Wolfgang Schenk ,  Guido Steffan ,  Axel Vogel

    发明人： Bernhard Albrecht ,  Hans Frey ,  Vinzenz Habermacher ,  Horst Behre ,  Lutz Kienitz ,  Wolfgang Schenk ,  Guido Steffan ,  Axel Vogel

    IPC分类号： C07C309/40 ,  C07C67/00 ,  C07C301/00 ,  C07C303/06 ,  C07C303/22 ,  C07C303/32 ,  C07C143/55

    CPC分类号： C07C309/00

    摘要： A process for producing the magnesium salt of 3-nitro-naphthalene-1,5-disulfonic acid by sulfonating naphthalene, nitrating the sulfonation product, and separating the pure magnesium salt of 3-nitronaphthalene-1,5-disulfonic acid, which process comprises:(a) sulfonating naphthalene with liquid SO.sub.3 in the presence of an inert organic solvent at temperatures between -40.degree. and +20.degree. C.;(b) adding to the reaction mixture obtained a mixture consisting of about equal parts of 100% sulfuric acid and fully reacted crude nitration mixture from nitration of a previous nitration charge, separating from the resulting two-phase system the upper organic solvent phase by decanting, and removing from the Armstrong's acid anhydride acid slurry the remainder of organic solvent by distillation, or removing it during or after subsequent nitration, subsequently adding to the residue the amount of nitric acid required for nitration, and then nitrating;(c) adding then firstly water and afterwards, in the absence of the inert organic solvent, at 90.degree. to 120.degree. C., a compound releasing magnesium ions, the amount being such that, per mol of 3-nitronaphthalene-1,5-disulfonic acid, 1.1 to 1.3 mols of magnesium ions are added, and a sulfuric acid concentration of between 40 and 60 percent by weight (relative to the sulfuric acid and water) is maintained; and(d) separating the crystallized magnesium salt of 3-nitronaphthalene-1,5-disulfonic acid at a temperature of between 20.degree. and 70.degree. C., and subsequently optionally washing it with a maximum of 60 percent by weight of sulfuric acid and/or water, and optionally drying the product.

    摘要翻译： 通过磺化萘，硝化磺化产物和分离3-硝基萘-1,5-二磺酸的纯镁盐来生产3-硝基 - 萘-1,5-二磺酸的镁盐的方法，该方法包括 ：（a）在-40℃〜+ 20℃的温度下，在惰性有机溶剂的存在下，用液态SO 3磺化萘。 （b）向反应混合物中加入由约等量的100％硫酸组成的混合物和来自先前硝化装置的硝化的完全反应的粗硝化混合物，通过倾析从所得两相体系中分离出上部有机溶剂相 ，并通过蒸馏从阿姆斯壮的酸酐酸浆中除去剩余的有机溶剂，或者在后续硝化过程中或之后将其除去，随后向残余物中加入硝化所需的硝酸量，然后硝化; （c）然后首先加入水，然后在不存在惰性有机溶剂的情况下，在90〜120℃下，加入释放镁离子的化合物，其用量为每摩尔3-硝基萘-1,5 二磺酸，加入1.1〜1.3摩尔的镁离子，硫酸浓度保持在40〜60重量％之间（相对于硫酸和水）; 和（d）在20℃至70℃的温度下分离3-硝基萘-1,5-二磺酸的结晶镁盐，随后任选地用最多60重量％的硫酸洗涤， /或水，并任选地干燥产品。

    MULTI-PART AXIAL CAGE FOR A LARGE-DIAMETER ROLLER BEARING
    3.
    发明申请
    MULTI-PART AXIAL CAGE FOR A LARGE-DIAMETER ROLLER BEARING 有权
    用于大直径滚子轴承的多部分轴向保持架

    公开(公告)号：US20100111460A1

    公开(公告)日：2010-05-06

    申请号：US12528902

    申请日：2008-01-29

    申请人： Bernhard Albrecht ,  Reinhard Schwinghammer

    发明人： Bernhard Albrecht ,  Reinhard Schwinghammer

    IPC分类号： F16C33/48

    CPC分类号： F16C19/30 ,  F16C19/381 ,  F16C33/4611 ,  F16C33/502 ,  F16C33/6614 ,  F16C33/6625 ,  F16C33/761 ,  F16C33/7893 ,  F16C2300/14 ,  F16C2322/39

    摘要： A multi-part axial cage for a large diameter roller bearing, which has a metal strip which is connected to plastic cage windows. The metal strip is configured as a washer-ring-type flat cage and each cage window has a sealing element on the edge lying opposite the guiding edge. The element covering an axial gap is formed between the races of the roller bearing. The sealing elements of the individual cage windows overlap around the circumference.

    摘要翻译： 一种用于大直径滚子轴承的多部件轴向保持架，其具有连接到塑料笼窗的金属条。 金属条被配置为垫圈环型平坦保持架，并且每个保持架窗口在与引导边缘相对的边缘上具有密封元件。 覆盖轴向间隙的元件形成在滚子轴承的滚道之间。 单个笼窗的密封元件围绕圆周重叠。

    Process for the preparation of 1-amine-2-naphthol-4-sulfonic acid
    4.
    发明授权
    Process for the preparation of 1-amine-2-naphthol-4-sulfonic acid 失效
    1-胺-2-萘酚-4-磺酸的制备方法

    公开(公告)号：US4929752A

    公开(公告)日：1990-05-29

    申请号：US352652

    申请日：1989-05-12

    申请人： Bernhard Albrecht ,  Jurgen Beyrich

    发明人： Bernhard Albrecht ,  Jurgen Beyrich

    IPC分类号： C07C303/04 ,  C07C309/50

    CPC分类号： C07C309/50

    摘要： There is disclosed an improved semi-continuous and continuous process for the preparation of 1-amino-2-naphthol-4-sulfonic acid by nitrosation of 2-naphthol, addition of bisulfite, acidification with mineral acid and reduction of the reaction product so obtained, which comprises charging the reactor with the nitrosating agent and simultaneously adding 2-naphthol and mineral acid simultaneously in separate streams in the semi-continuous process, or charging the reactor with the reaction mass and simultaneously adding 2-naphthol, mineral acid and the nitrosating agent in separate streams in the continuous process. The product can be further used, without isolation, for the synthesis of dyes.

    摘要翻译： 公开了通过2-萘酚亚硝化制备1-氨基-2-萘酚-4-磺酸的改进的半连续和连续方法，加入亚硫酸氢盐，用无机酸酸化并还原所得的反应产物 ，其中包括用硝化剂对反应器进行加料，并在半连续过程中同时在分离的物流中加入2-萘酚和无机酸，或将反应物与反应物料反应，同时加入2-萘酚，无机酸和亚硝化 代理在不同流中的连续过程。 该产品可以进一步使用，无需隔离，用于合成染料。

    Process for the preparation of chloronitroanilines and chloronitrophenols
    5.
    发明授权
    Process for the preparation of chloronitroanilines and chloronitrophenols 失效
    制备氯硝基苯胺和氯硝基苯酚的方法

    公开(公告)号：US4879415A

    公开(公告)日：1989-11-07

    申请号：US129425

    申请日：1987-11-25

    申请人： Bernhard Albrecht ,  Jurgen Beyrich

    发明人： Bernhard Albrecht ,  Jurgen Beyrich

    IPC分类号： C07C205/12 ,  C07C67/00 ,  C07C201/00 ,  C07C201/12 ,  C07C205/26 ,  C07C209/00 ,  C07C209/74 ,  C07C211/52

    CPC分类号： C07C201/12 ,  C07C209/74

    摘要： The invention relates to a process for the preparation of chloronitroanilines or chloronitrophenols, which comprises chlorinating nitroanilines or nitrophenols in hydrochloric acid by adding simultaneously separate streams of nitroanilines or nitrophenols and of a chlorinating agent to said hydrochloric acid. The process affords pure products in good yield. An accumulation of chlorine during the reaction is avoided.Chloronitroanilines and chloronitrophenols are useful intermediates for the snythesis of disperse dyes.

    摘要翻译： 本发明涉及一种制备氯硝基苯胺或氯硝基苯酚的方法，其包括通过同时将硝基苯胺或硝基苯酚和氯化剂分别加入到所述盐酸中，在硝酸中氯化硝基苯胺或硝基苯酚。 该方法以高产率提供纯产品。 避免了反应过程中氯的累积。 氯硝基苯胺和氯硝基苯酚是分散染料的有用的中间体。