Method of producing onium-salt complex compounds
    3.
    发明授权
    Method of producing onium-salt complex compounds 失效
    生产盐复合化合物的方法

    公开(公告)号:US3448127A

    公开(公告)日:1969-06-03

    申请号:US3448127D

    申请日:1964-03-27

    申请人: SIEMENS AG

    发明人: DOTZER RICHARD

    摘要: Onium salts having a complex anion are prepared by the reaction of (a) an electron donor compound of formula R1kHlkY, (b) a electron acceptor compound of formula MR11nX1mn and (c) an organic compound RX, wherein R, R1 and R11 are alkyl or aryl groups, X is halogen, pseudohalogen or an acid residue, X1 is halogen or hydrogen, Y is N, P, As, Sb, Bi, S, Se or Te, M is Be, Zn, Cd, B, Al, In, Ga, Tl, Si, Ge, Pb or Sn, l and m are integers representing the capacities of Y and M respectively to combine with hydrogen, and k and n are 0 or an integer from 1 to l or m respectively. The reaction in its simplest form may be represented by:-D + A + RX --> [DR]+[AX]-wherein D represents the electron donor and A the electron acceptor, but compounds formed by the reaction of two molecules of acceptor with one each of donor and RX ar also disclosed. The reaction may be carried out by first forming a co-ordination compound between donor and acceptor and reacting this with RX, or an adduct or mixture may be formed from the acceptor and RX which is then reacted with the donor, or the donor and RX may be first mixed and then reacted with the acceptor. Trimethylammonium triethylchloroaluminate obtained by first passing triethylamine gas into triethylaluminium to form a 1 : 1 complex and passing methyl chloride into the product. By passing further methyl chloride there is obtained the complex Triethylpropylstibonium triethylbromoindanate is prepared by reacting methylantimony and triethylindium under an inert gas and adding N :propyl bromide to the product. Further examples are indicated by the equations:- The complex onium salts may be degraded by such methods as solvolysis with methanol or water, oxidative cleavage or displacement with a stronger complexing agent for the acceptor compound to give the simple onium salt (DR)+X- where D represents the donor compound. For example, tetraethylstibonium triethyl bromoaluminate in solution in dichloromethane is added to methanol, ethane is evolved and aluminium methoxide removed by decantation, and the residue worked up to yield tetraethylstibonium bromide.

    Chemical recording of flow patterns
    4.
    发明授权
    Chemical recording of flow patterns 失效
    流动模式的化学记录

    公开(公告)号:US3890835A

    公开(公告)日:1975-06-24

    申请号:US26974672

    申请日:1972-07-07

    申请人: SIEMENS AG

    IPC分类号: C25D11/24 G01M9/00

    CPC分类号: C25D11/24

    摘要: The flow pattern of a fluid over a surface can be determined by treating the surface to form a reactive layer, entraining in the fluid a reagent compound which is capable of chemically changing the reactive layer, and then passing the fluid over the reactive layer which is to be examined. This method is illustrated by treating an aluminum surface of a blade member (such as that in a vacuum cleaner blower) or adjacent structural members to form a thin aluminum oxide film by anodic treatment. The microporous film which is formed is then impregnated with an organic dye. An air stream containing a reactive substance, such as acid vapors, is passed over the treated blade member. The acid vapors react with the dye and/or the oxide layer and produce a visible pattern upon the blade which is characteristic of the boundary layer flow of the air stream. An examination of the visible pattern is of assistance in determining the proper design and operating characteristics of the blade. The visible pattern may be formed or preserved by chemical post-treatment, such as etching to leach out dye from unreacted portions of the layer and to provide a more permanent record for subsequent use. Alternatively, the microporous aluminum oxide layer can be treated with a fluid stream containing a reactive substance to characteristically change the layer, followed by treatment with a dye to form the visible pattern of the boundary flow.

    摘要翻译: 表面上的流体的流动模式可以通过处理表面以形成反应层来确定,在流体中夹带能够化学改变反应层的试剂化合物,然后使流体通过反应层 要检查 该方法通过处理叶片构件(例如真空吸尘器鼓风机中的铝)表面或相邻的结构构件来表示,以通过阳极处理形成薄的氧化铝膜。 然后将形成的微孔膜用有机染料浸渍。 含有反应性物质(例如酸性蒸气)的空气流在经处理的叶片构件上通过。 酸性蒸汽与染料和/或氧化物层反应,并在叶片上产生可见的图案,其是气流的边界层流动的特征。 对可见图案的检查有助于确定叶片的正确设计和操作特性。 可以通过化学后处理形成或保留可见图案,例如蚀刻以从层的未反应部分浸出染料,并为后续使用提供更永久的记录。 或者,微孔氧化铝层可以用含有反应物质的流体流处理,以特征地改变层,然后用染料处理以形成边界流的可见图案。