Cobalt oxide-based catalytic substances for the oxidation of ammonia
    4.
    发明授权
    Cobalt oxide-based catalytic substances for the oxidation of ammonia 失效
    用于氧化氨的氧化钴基催化物质

    公开(公告)号:US4036935A

    公开(公告)日:1977-07-19

    申请号:US656138

    申请日:1976-02-09

    摘要: The invention concerns catalytic substances for the oxidation of ammonia, for the production of nitric acid, comprising cobalt oxide as the main component. Such substances, besides cobalt oxide, also contain additives formed of aluminum oxide and possibly oxides of thorium, cerium, zinc and cadmium, the amount of aluminum oxide added being from 5% to 15% by weight of the finished substances and the amount of the other oxides being from 0 to 25% by weight of the finished substances; these substances are in particular shaped by pelleting or extrusion, dried and then calcined at temperatures of the order of from 900.degree. to 1000.degree. C. The advantages of these catalytic substances lie in a high degree of activity and a high level of strength, which are maintained during use thereof.

    摘要翻译: 本发明涉及用于氧化氨的催化物质,用于生产包含氧化钴作为主要成分的硝酸。 除了氧化钴之外,这些物质还含有由氧化铝和可能的钍,铈,锌和镉的氧化物形成的添加剂,所加入的氧化铝的量为成品物质的5重量%至15重量% 其他氧化物为成品重量的0〜25%; 这些物质特别是通过造粒或挤出成形,干燥,然后在约900℃至1000℃的温度下煅烧。这些催化物质的优点在于高活性和高水平的强度,其中 在使用期间保持。