Process for making phosphorus pentoxide and optionally phosphoric acid
with utilization of the reaction heat
    1.
    发明授权
    Process for making phosphorus pentoxide and optionally phosphoric acid with utilization of the reaction heat 失效
    利用反应热制备五氧化二磷和任选的磷酸的方法

    公开(公告)号:US4603039A

    公开(公告)日:1986-07-29

    申请号:US741482

    申请日:1985-06-05

    摘要: The disclosure relates to a process for making phosphorus pentoxide by subjecting elemental yellow phosphorus to combustion with dried air inside a steel-made combustion chamber with utilization of the reaction heat for the production of energy. To this end, the disclosure provides for the combustion to be effected inside a combustion chamber of which the walls are arranged so as to form a cooling system with cavities therein; for water or a water/steam-mixture as a heat carrier abstracting the reaction heat to be circulated through the cooling system, the water or water/steam-mixture assuming an increased temperature being circulated, preferably under increased pressure; for steam formed in the cooling system to be continuously taken therefrom; for an equivalent proportion of fresh desalted water to be introduced into the cooling system; for hot gaseous phosphorus pentoxide issuing from the combustion chamber to be condensed or worked up into phosphoric acid; for the steam taken from the cooling system to be passed through a steam delivery pipe disposed in the upper portion of the combustion chamber, or through a delivery conduit for product gas containing phosphorus pentoxide; for the steam to be heated therein to a temperature of 400.degree. to 600.degree. C. under constant pressure, and for the steam so superheated to be used.

    摘要翻译: 本公开内容涉及通过利用反应热用于生产能量的方法,通过使元素黄磷与干燥的空气在钢制燃烧室内燃烧来制备五氧化二磷的方法。 为此,本公开提供了在燃烧室内进行燃烧,其中壁的布置以便形成其中具有空腔的冷却系统; 对于作为热载体的水或水/蒸汽混合物,其提取要循环通过冷却系统的反应热,假定温度升高的水或水/蒸汽混合物优选在增加的压力下循环; 对于在冷却系统中形成的蒸汽连续从其中取出; 将相当比例的新鲜脱盐水引入冷却系统; 从燃烧室排出的热气态五氧化二磷被冷凝或加工成磷酸; 用于从冷却系统取出的蒸汽通过设置在燃烧室上部的蒸汽输送管,或通过含有五氧化二磷的产物气体的输送管道; 使蒸汽在恒定压力下加热到400至600℃的温度,并使蒸汽过热使用。

    Process and apparatus for making phosphorus pentoxide with utilization
of reaction heat
    2.
    发明授权
    Process and apparatus for making phosphorus pentoxide with utilization of reaction heat 失效
    利用反应热制造五氧化二磷的工艺和装置

    公开(公告)号:US4525329A

    公开(公告)日:1985-06-25

    申请号:US601027

    申请日:1984-04-16

    IPC分类号: B01J19/00 C01B25/12

    摘要: The disclosure relates to a process for making phosphorus pentoxide by subjecting elemental yellow phosphorus to combustion with dried air inside a steel-made combustion chamber with utilization of the reaction heat for the production of energy. To this end, the disclosure provides for the combustion to be effected inside a combustion chamber of which the walls are arranged so as to form a cooling system with cavities therein; for a liquid or liquid/steam-mixture as a heat carrier abstracting the reaction heat to be circulated through the cooling system, the liquid or liquid/steam-mixture assuming an increased temperature being preferably so circulated under increased pressure; for steam formed in the cooling system to be continuously taken therefrom; for an equivalent proportion of fresh liquid to be introduced into the cooling system; for hot P.sub.2 O.sub.5 issuing in vapor form from the combustion chamber to be condensed or worked up into desirable final product, the combustion chamber being a cylindrical vessel with a height/diameter-ratio of 2.5:1 to 5:1 and having 1 to 10 burners disposed axisymmetrically in its circular base plate.The disclosure also relates to an apparatus for carrying out the process.

    摘要翻译: 本公开内容涉及通过利用反应热用于生产能量的方法,通过使元素黄磷与干燥的空气在钢制燃烧室内燃烧来制备五氧化二磷的方法。 为此,本公开提供了在燃烧室内进行燃烧,其中壁的布置以便形成其中具有空腔的冷却系统; 对于作为热载体的液体或液体/蒸汽混合物,其提取要循环通过冷却系统的反应热,假设温度升高的液体或液体/蒸汽混合物优选在增加的压力下循环; 对于在冷却系统中形成的蒸汽连续从其中取出; 将相当比例的新鲜液体引入冷却系统; 对于来自燃烧室的蒸汽形式的热P2O5将被冷凝或加工成所需的最终产品,燃烧室是高度/直径比为2.5:1至5:1的圆柱形容器,并具有1至10个燃烧器 在其圆形基板中轴对称设置。 本公开还涉及一种用于执行该过程的装置。

    Self-cleaning bucket wheel lock
    3.
    发明授权
    Self-cleaning bucket wheel lock 失效
    自清桶轮锁

    公开(公告)号:US4176765A

    公开(公告)日:1979-12-04

    申请号:US876250

    申请日:1978-02-09

    IPC分类号: B65B1/10 B65G53/46 G01F11/00

    CPC分类号: B65G53/4641

    摘要: Self-cleaning bucket wheel lock comprising several cells or compartments. The apparatus which permits coalescent material to be introduced into a closed apparatus comprises a casing with a material inlet and discharge outlet, and a rotor basket. The rotor basket is mounted in position on a drive shaft passing through the casing and an elastic hose is secured to the rotor basket. The hose enables the volume of each cell to be varied whenever the drive shaft is caused to rotate.

    摘要翻译: 自清洁桶轮锁包括几个电池或隔间。 允许将聚结材料引入封闭装置的装置包括具有材料入口和排出口的壳体和转子篮。 转子篮安装在通过壳体的驱动轴上的适当位置,弹性软管固定在转子篮上。 当驱动轴转动时,软管可以使每个电池的体积变化。

    Apparatus for the production of phosphoric acid
    4.
    发明授权
    Apparatus for the production of phosphoric acid 失效
    用于生产磷酸的设备

    公开(公告)号:US4252770A

    公开(公告)日:1981-02-24

    申请号:US85483

    申请日:1979-10-17

    摘要: The invention relates to an apparatus for the production of phosphoric acid by subjecting yellow phosphorus to combustion inside a combustion tower, the apparatus comprising a cone-shaped shell with a flat bottom of acidproof material forming the combustion tower, the cone ratio of the shell being 1:10 to 1:12. An upwardly-directed off-gas outlet is secured to the lower portion of the shell and a plurality of downwardly directed spray nozzles is arranged so as to open through the middle portion of the shell into the interior of the combustion tower. An acid-receiving cup with an overflow weir is positioned near the upper end of the shell, the acid-receiving cup surrounding the combustion tower concentrically, being gas-tightly connected to, and supporting, a self-supporting cone-shaped tower cover having a passageway passed centrally through it. The overflow weir is formed of a tubular-annular structure disposed completely horizontally inside the acid-receiving cup. The tower cover forms, with respect to the horizontal, an angle .alpha. of at least 19.degree.. A water-cooled air inlet and a tubular holding means terminating in a phosphorus spray nozzle are hooked concentrically with respect to one another in, and are passed through the passageway in the cover.

    摘要翻译: 本发明涉及一种通过使黄磷在燃烧塔内燃烧而生产磷酸的装置,该装置包括具有形成燃烧塔的耐酸材料的平底的锥形壳,壳的锥比为 1:10至1:12 向上定向的废气出口被固定到壳体的下部,并且多个向下指向的喷嘴被布置成通过壳体的中间部分打开到燃烧塔的内部。 具有溢流堰的酸接收杯定位在壳的上端附近,同时围绕燃烧塔的酸接收杯气密地连接到并支撑着自支撑的锥形塔盖,其具有 一个通道集中通过它。 溢流堰由在酸接收杯内完全水平设置的管状环形结构形成。 塔架相对于水平面形成至少19°的角度α。 端接在磷喷嘴中的水冷空气入口和管状保持装置相对于彼此同心地钩住,并且通过盖中的通道。