Preparation of essentially alkali-free titanium zeolites
    93.
    发明授权
    Preparation of essentially alkali-free titanium zeolites 失效
    碱性无碱钛沸石的制备

    公开(公告)号:US5401486A

    公开(公告)日:1995-03-28

    申请号:US164425

    申请日:1993-12-08

    摘要: A process for preparing essentially alkali-free titanium silicate crystals having a zeolite structure, comprises reacting an SiO.sub.2 -containing mixture of water, a tetraalkylammonium compound, a titanium component and ammonia in the absence of a metal hydroxide or salt under hydrothermal conditions in a molar ratio of ammonia/tetraalkylammonium of from 3:1 to 200:1.

    摘要翻译: 基本上制备具有沸石结构的无碱钛硅酸盐晶体的方法,包括在水热条件下在不存在金属氢氧化物或盐的情况下使含有SiO 2的水,四烷基铵化合物,钛组分和氨的混合物在摩尔 氨/四烷基铵的比例为3:1至200:1。

    Apparatus for transporting workpieces
    95.
    发明授权
    Apparatus for transporting workpieces 失效
    用于运输工件的装置

    公开(公告)号:US5272985A

    公开(公告)日:1993-12-28

    申请号:US834234

    申请日:1992-02-18

    CPC分类号: E01B25/12 B61C13/04

    摘要: In apparatuses of the generic type, single point modules are provided which can transfer only the transport wagons arriving from one point branch optionally into one of the two other point branches. It is achieved by the development of the point modules according to the invention as T-shaped double point modules (40) that each point branch (42, 44, 46) can be connected optionally to one of the other two point branches, which results in a construction of a network transport path system of a simpler construction which requires less space and provides a better overview. For narrowing the spacing of parallel transport path routes (76, 80), point modules (72) are proposed whose branch angle is less than 90.degree., preferably 45.degree.. Apparatus with flexible transport path and assembly systems in industrial production plants are a preferred application sector.

    摘要翻译: PCT No.PCT / DE91 / 00649 Sec。 371日期1992年2月18日 102(e)日期1992年2月18日PCT 1991年8月16日PCT PCT。 出版物WO92 / 03363 日期为1992年3月5日。在一般类型的装置中,提供单点模块,其可以仅将从一个点分支到达的运输货车可选地传送到两个其他点分支中的一个。 通过将根据本发明的点模块的发展实现为T形双点模块(40),每个点分支(42,44,46)可以可选地连接到其他两个点分支之一,这导致 在一种更简单的结构的网络传输路径系统的结构中,其需要较少的空间并提供更好的概述。 为了缩小平行传送路径(76,80)的间距,提出了分支角小于90°,​​优选45°的点模块(72)。 在工业生产工厂中具有灵活的输送路径和组装系统的装置是优选的应用领域。

    Silicate producing method
    100.
    发明授权
    Silicate producing method 有权
    硅酸盐生产方法

    公开(公告)号:US08372378B2

    公开(公告)日:2013-02-12

    申请号:US13082603

    申请日:2011-04-08

    IPC分类号: C01B33/20 C01B37/02

    CPC分类号: C01B37/02 Y02P20/582

    摘要: The present invention relates to a process for the preparation of a silicate comprising at least silicon and oxygen, comprising (1) mixing of silicon dioxide and/or of a silicon dioxide precursor with an aqueous solution comprising at least one tetraalkylammonium compound comprising R1R2R3R4N+ and at least one base, wherein R1 and R2 are methyl and both R3 and R4 are n-propyl; (2) heating of the colloidal solution obtained according to (1) to a temperature in the range of from greater than the boiling point of the colloidal solution under the chosen pressure to 180° C. at atmospheric pressure to give a suspension comprising at least one silicate, wherein the silicate comprising at least silicon and oxygen is added as a crystallization auxiliary in (1).

    摘要翻译: 本发明涉及一种制备至少包含硅和氧的硅酸盐的方法,包括(1)将二氧化硅和/或二氧化硅前体与包含至少一种包含R1R2R3R4N +的四烷基铵化合物的水溶液混合,并在 至少一个碱,其中R 1和R 2是甲基,R 3和R 4都是正丙基; (2)将根据(1)获得的胶体溶液在大气压下加热到大于压力下的胶体溶液的沸点至180℃的温度范围内,得到至少包含至少 一种硅酸盐,其中在(1)中加入至少含有硅和氧的硅酸盐作为结晶助剂。