Gray-black encapsulated pigments and method for their preparation
    84.
    发明授权
    Gray-black encapsulated pigments and method for their preparation 失效
    灰黑色胶囊颜料及其制备方法

    公开(公告)号:US5019169A

    公开(公告)日:1991-05-28

    申请号:US487294

    申请日:1990-03-02

    CPC分类号: C09C1/0012 C01P2002/08

    摘要: Gray-black pigments are prepared by encapsulating iron titanates of formula FeTiO.sub.3 in zirconium silicate crystals. Manufacture is by calcining a mixture of zirconium oxide having a particle size distribution of 6 to 10 .mu.m and a specific surface area of 2 to 5.2 m.sup.2 /g, silicon dioxide and iron and titanium oxides or Fe and Ti compounds forming oxides in the presence of mineralizers under oxidizing conditions at 800 to 1300.degree. C. Finely divided FeTiO.sub.3 can also be used.

    摘要翻译: 通过将式FeTiO 3的铁钛酸盐包覆在硅酸锆晶体中制备灰黑色颜料。 制造是通过煅烧粒度分布为6〜10μm,比表面积为2〜5.2m 2 / g的氧化锆的混合物,二氧化硅和铁和钛的氧化物,或Fe和Ti化合物形成氧化物的存在 的矿化剂在800至1300℃的氧化条件下。也可以使用细分的FeTiO 3。

    Aqueous suspension of bentonite and its use for coating thermal
insulating molded articles
    89.
    发明授权
    Aqueous suspension of bentonite and its use for coating thermal insulating molded articles 失效
    膨润土的水悬浮液及其用于涂覆绝热模制品的用途

    公开(公告)号:US4670101A

    公开(公告)日:1987-06-02

    申请号:US749480

    申请日:1985-06-27

    IPC分类号: C04B30/02 D21F11/00

    CPC分类号: C04B30/02

    摘要: There is prepared an aqueous suspension which in addition to water, consists of 2 to 50 weight % of a mixture of bentonite and inorganic fibers, with the portion of inorganic fiber being 1 to 30 weight % and the portion of bentonite being 1 to 30 weight % and wherein the total amount of solids does not exceed 50 weight %. With the suspension there is attained an improvement of the mechanical properties of thermal insulating molded objects which are employed for thermal insulation and which for example, contain pyrogenically produced silica as a filler by delivery of this suspension on the thermal insulating plate. The suspension can also be delivered on thermal insulating molded bodies on which there is pressed a fiber net or a fiber felt. After applying the suspension several thermal insulating molded bodies can be joined together where the coating formed consisting of bentonite and inorganic fibers acts as binder. The heat insulating molded article in addition to this layer, can have one or more additional coatings based on organic or inorganic lacquer systems, silicone compositions or low melting glazes.

    摘要翻译: 制备水性悬浮液,除了水之外,由2〜50重量%的膨润土和无机纤维​​的混合物组成,无机纤维的比例为1〜30重量%,膨润土的比例为1〜30重量% %,其中固体的总量不超过50重量%。 通过悬浮液,绝热成型体的机械性能得到改善,其用于隔热,并且例如通过将该悬浮液输送到绝热板上而含有热解法生产的二氧化硅作为填料。 该悬浮液也可以在其上挤压纤维网或纤维毡的隔热成型体上输送。 应用悬浮液后,几个绝热成型体可以结合在一起,其中由膨润土和无机纤维​​组成的涂层作为粘合剂。 除了该层之外,绝热模制品可以具有一种或多种基于有机或无机漆系统,硅酮组合物或低熔点釉料的附加涂层。

    Apparatus for the internal coating of contact tubes
    90.
    发明授权
    Apparatus for the internal coating of contact tubes 失效
    接触管内涂装置

    公开(公告)号:US4471712A

    公开(公告)日:1984-09-18

    申请号:US508133

    申请日:1983-06-27

    CPC分类号: B05C7/04 B05D7/222

    摘要: The previously carried out internal coating of contact tubes not only required very much manual labor and was very time consuming, but it was also unsatisfactory in regard to adhesion of the contact liquid to the surface and homogenity of the catalyst. By the simultaneous action of heat on the liquid interface in the tubes during the lowering of the liquid level as well as by a specially suited apparatus for this purpose which operates according to the principle of communicating tubes there is provided the possibility of a good adhesion to the surface as well as the formation of a homogeneous layer at very little operating expense.

    摘要翻译: 先前进行的接触管的内部涂层不仅需要非常多的手工劳动,并且非常耗时,而且对于接触液体对表面的粘附和催化剂的均匀性也是不令人满意的。 通过在液面降低期间在管中的液体界面上的热同时作用以及根据连通管的原理的特别适合的用于该目的的设备,提供了对 表面以及以非常小的操作费用形成均匀的层。