NITROGEN OXIDE AND HYDROCYANIC ACID PRODUCTION METHOD
    5.
    发明申请
    NITROGEN OXIDE AND HYDROCYANIC ACID PRODUCTION METHOD 审中-公开
    氮氧化物和氢氯酸生产方法

    公开(公告)号:US20120251430A1

    公开(公告)日:2012-10-04

    申请号:US13495204

    申请日:2012-06-13

    IPC分类号: C01C3/02 C01B21/24

    摘要: A metal fiber based on one or several elements from the group of platinum, palladium, rhodium, ruthenium, and iridium with 0 to 30% by weight of one or several additional alloy elements from the group of nickel, cobalt, gold, rhenium, molybdenum, and tungsten, contains 1 to 500 ppm by weight of boron or phosphorus. A non-woven material or netting, in particular for the production of nitrogen oxide or for the production of hydrocyanic acid, is made of such fibers. For the production of fibers based on noble metals having up to 30% by weight of additional alloy metals by drawing the fibers from a melt, the melting point of the metal is reduced by at least 400° C., before drawing of the fibers, by additionally alloying with boron or phosphorus, and the boron or the phosphorus is removed again from the fibers.

    摘要翻译: 基于来自铂,钯,铑,钌和铱的一种或几种元素的金属纤维,其中含有0至30重量%的来自镍,钴,金,铼,钼的一种或多种另外的合金元素 ,钨含有1〜500重量ppm的硼或磷。 特别是用于生产氮氧化物或用于生产氢氰酸的非织造材料或网由这种纤维制成。 为了通过从熔体中拉伸纤维来生产基于高达30重量%的附加合金金属的贵金属的纤维,在拉伸纤维之前金属的熔点降低至少400℃, 通过额外地与硼或磷合金化,并且再次从纤维中除去硼或磷。

    DEVICE AND METHOD FOR CATALYTIC GAS PHASE REACTION AND THE USE THEREOF
    6.
    发明申请
    DEVICE AND METHOD FOR CATALYTIC GAS PHASE REACTION AND THE USE THEREOF 有权
    用于催化气相反应的装置和方法及其用途

    公开(公告)号:US20100166631A1

    公开(公告)日:2010-07-01

    申请号:US12451874

    申请日:2008-05-28

    IPC分类号: B01D53/58 B01J15/00

    摘要: Improved reactors for catalytic, exothermic gas-phase reactions, which comprise, viewed in the flow direction of a feed gas, an inlet zone (1), a reaction zone (2) containing at least one catalyst (4) an outlet zone (3) for the product gas, are described. The reactors are provided in the region of the inlet zone (1) or in the region of the inlet zone (1) and the reaction zone (2) with means, for example an insulating liner (6) and/or apparatuses for the transport of cooling media, which reduce heat transport from the reaction zone (2) into the inlet zone (1) and thus reduce the risk of preignition of the feed gas mixture used or occurrence of undesirable secondary reactions in the inlet zone (1) and/or the interior walls of the reactor in the region of the inlet zone (1) or in the region of the inlet zone (1) and the reaction zone (2) consist of inert material.The reactors can be used, in particular, for the oxidation of ammonia, for example in nitric acid plants in which transition metal catalysts configured as honeycombs and having smaller cross sections than the platinum gauzes customarily used are preferably used.

    摘要翻译: 改进的用于催化,放热气相反应的反应器,其包括在进料气体的流动方向上观察入口区域(1),含有至少一种催化剂的反应区域(2),出口区域(3) )用于产品气体。 反应器在入口区域(1)的区域中或在入口区域(1)和反应区域(2)的区域中设置有例如绝缘衬垫(6)和/或用于运输的装置 的冷却介质,其减少从反应区域(2)进入入口区域(1)的热传递,并且因此降低了所使用的进料气体混合物的预先燃烧或在入口区域(1)中产生不期望的次级反应的风险和/ 或在入口区域(1)的区域中或在入口区域(1)和反应区域(2)的区域内的反应器的内壁由惰性材料构成。 反应器特别可用于氨的氧化,例如在硝酸设备中,其中优选使用配置为蜂窝状的过渡金属催化剂并且具有比通常使用的铂网布更小的横截面。

    Method for the catalytic decomposition of N2O
    10.
    发明授权
    Method for the catalytic decomposition of N2O 有权
    N2O催化分解方法

    公开(公告)号:US06743404B1

    公开(公告)日:2004-06-01

    申请号:US09674047

    申请日:2000-10-25

    IPC分类号: B01D5356

    摘要: A reactor for the catalytic oxidation of ammonia to form nitrogen oxides which has a noble metal gauze catalyst and a heat exchanger in that order in the direction of flow, a catalyst for the decomposition of N2O is located between the noble metal gauze catalyst and the heat exchanger and in a process for the catalytic decomposition of N2O in a gas mixture obtained in the preparation of nitric acid by catalytic oxidation of ammonia, where the N2O is decomposed catalytically over a catalyst of the decomposition of N2O, the hot gas mixture obtained from the catalytic oxidation of ammonia is brought to contact with the catalyst for the decomposition of N2O prior to subsequent cooling.

    摘要翻译: 用于催化氧化氨以形成氮氧化物的反应器,其具有贵金属纱布催化剂和沿流动方向依次换热器,用于分解N 2 O的催化剂位于贵金属纱布催化剂和热量之间 并且在通过氨的催化氧化在硝酸制备中获得的气体混合物中催化分解N2O的方法中,其中N 2 O在N 2 O分解催化剂上催化分解,得到的热气体混合物 在随后冷却之前,使氨的催化氧化与用于分解N 2 O的催化剂接触。