PROCESSES FOR HYDROGEN CHLORIDE OXIDATION USING OXYGEN
    31.
    发明申请
    PROCESSES FOR HYDROGEN CHLORIDE OXIDATION USING OXYGEN 审中-公开
    氧化氯化氢氧化工艺

    公开(公告)号:US20100010256A1

    公开(公告)日:2010-01-14

    申请号:US12499431

    申请日:2009-07-08

    Abstract: Processes which include: (a) providing a gas phase comprising hydrogen chloride; (b) oxidizing the hydrogen chloride in a reactor to form a product gas comprising chlorine, unreacted hydrogen chloride and water, the reactor having structural parts with inner surfaces that are contacted during oxidation by one or both of the gas phase and the product gas; (c) cooling the process gas; (d) separating the unreacted hydrogen chloride and water from the product gas; (e) drying the product gas; and (f) separating the chlorine from the product gas; wherein the inner surfaces of the reactor structural parts that are contacted during oxidation by one or both of the gas phase and the product gas are comprised of a nickel material having a nickel content of at least 60 wt. %, are described.

    Abstract translation: 方法包括:(a)提供包含氯化氢的气相; (b)在反应器中氧化氯化氢以形成包含氯,未反应的氯化氢和水的产物气体,所述反应器具有结构部分,其内表面在气相和产物气体中的一种或两种氧化期间接触; (c)冷却工艺气体; (d)从产物气体中分离未反应的氯化氢和水; (e)干燥产品气体; 和(f)从产物气体中分离氯; 其中通过气相和产物气体中的一种或两种在氧化期间接触的反应器结构部件的内表面由镍含量为至少60重量%的镍材料组成。 %。

    Method of Joining Clad Metals and Vessel Produced Thereby
    32.
    发明申请
    Method of Joining Clad Metals and Vessel Produced Thereby 失效
    连接包覆金属和生产的容器的方法

    公开(公告)号:US20080268279A1

    公开(公告)日:2008-10-30

    申请号:US11816829

    申请日:2005-08-10

    Abstract: A method for joining clad metal plates having a protective layer (27), e.g. titanium, and a substrate layer (28), e.g. carbon steel, includes firstly removing margins (29) of protective layer along edges of the clad metal plates to be joined. The substrate layers are then welded together to form an exposed substrate weld (31). Covering material (38) of the same type as the protective layer (27) is then located along the exposed substrate weld (31) to a level substantially flush with an outer surface of the protective layer (27). The substrate layer (28) is heated prior to welding the covering material so that the covering material is pre-stressed when cooled. The method may be used to fabricate reaction vessels having seams that do not stand proud of the remainder of the interior surface of the vessel. The low profile seams are less susceptible to erosion than has been the case in the past so that longer-life vessels can be produced. The invention encompasses vessels such as autoclaves, crucibles and reaction vessels formed of clad plate joined by the method.

    Abstract translation: 一种用于接合具有保护层(27)的复合金属板的方法, 钛和基底层(28),例如, 碳钢,首先包括沿着要接合的复合金属板的边缘去除保护层的边缘(29)。 然后将基底层焊接在一起以形成暴露的基底焊缝(31)。 然后将与保护层(27)相同类型的覆盖材料(38)沿着暴露的基底焊缝(31)定位成与保护层(27)的外表面基本齐平的水平。 在焊接覆盖材料之前加热基底层(28),使得覆盖材料在冷却时被预应力。 该方法可用于制造具有接缝的反应容器,该接缝不会容纳容器内表面的其余部分。 低密度接缝比过去的情况不太受侵蚀,因此可以生产更长寿命的船只。 本发明包括诸如高压釜,坩埚和由通过该方法连接的复合板形成的反应容器的容器。

    Process for the production of titanium dioxide
    36.
    发明申请
    Process for the production of titanium dioxide 审中-公开
    二氧化钛生产工艺

    公开(公告)号:US20070196265A1

    公开(公告)日:2007-08-23

    申请号:US10593243

    申请日:2005-03-22

    Abstract: It is disclosed a process for the production of titanium dioxide comprising the following steps: (a) a titanium ore containing iron, preferably ilmenite, is reacted with an aqueous NH4F solution; (b) the aqueous suspension thus obtained is filtered with consequent separation of a sludge fraction, which contains ammonium fluoroferrates, and a filtrate fraction, which contains ammonium fluorotitanates; (c) the filtrate fraction thus obtained is subjected to an hydrolysis reaction; (d) the thus-obtained solid component is subjected to a thermal hydrolysis reaction. The plant and the reactors for performing the above process are also disclosed.

    Abstract translation: 公开了一种生产二氧化钛的方法,包括以下步骤:(a)含铁,优选钛铁矿的钛矿石与NH 4水溶液反应; (b)将由此获得的水性悬浮液过滤,随后分离含有氟代铁酸铵的污泥级分和含有氟钛酸铵的滤液级分; (c)将由此获得的滤液级分进行水解反应; (d)由此获得的固体组分进行热水解反应。 还公开了用于执行上述过程的设备和反应器。

    Method of protecting against corrosion at high temperature
    39.
    发明申请
    Method of protecting against corrosion at high temperature 有权
    防高温腐蚀的方法

    公开(公告)号:US20050173495A1

    公开(公告)日:2005-08-11

    申请号:US10603530

    申请日:2003-06-25

    Abstract: The invention relates to a method of protecting equipment intended to operate at high temperature in the presence of a fluid containing at least one hydrocarbon and/or carbon monoxide against corrosion by metal dusting, method in which pieces of the equipment are made from an alloy containing nickel, iron, chromium and/or aluminum, and in which said pieces of the equipment are protected from said corrosion by a protective coating. This method is characterized in that said equipment pieces protected in this way are connected to each other by means of joining pieces, said joining pieces being protected beforehand by a protective coating over at least part of their surface intended to be brought into contact with said fluid at high temperature, and in that each of the connections intended to be subjected to said corrosion is produced by external welding of the ends of the joining piece with said pieces of equipment.

    Abstract translation: 本发明涉及一种在含有至少一种烃和/或一氧化碳的流体存在下保护高温操作的设备的方法,以防止金属粉尘的腐蚀,其中设备件由含有 镍,铁,铬和/或铝,并且其中所述设备的部件被保护涂层保护免受所述腐蚀。 该方法的特征在于,以这种方式保护的所述设备件通过连接件相互连接,所述接合件预先通过保护涂层保护在其表面的至少一部分上,以使其与所述流体接触 并且由于连接件的端部与所述设备件的外部焊接来产生旨在经受所述腐蚀的每个连接。

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