Oxidative dehydrogenation and cracking of paraffins using a promoted
cobalt catalyst
    31.
    发明授权
    Oxidative dehydrogenation and cracking of paraffins using a promoted cobalt catalyst 失效
    使用促进的钴催化剂氧化脱氢和裂解石蜡

    公开(公告)号:US4835127A

    公开(公告)日:1989-05-30

    申请号:US658978

    申请日:1984-10-09

    摘要: A paraffin or mixture of paraffins having from 2 to 5 carbon atoms is oxidatively dehydrogenated in the presence of a cobalt based catalyst composition which has been calcined in the absence of oxygen. The catalyst composition comprises cobalt; phosphorus; at least one promoter selected from the group consisting of zinc, titanium, zirconium, niobium, indium, lead and bismuth; at least one alkali metal and oxygen. The catalyst composition may also contain sulfur and/or a halogen. If the feed to the oxidative dehydrogenation process contains paraffins having more than two carbon atoms, some cracking of such paraffins will also occur at the conditions at which the oxidative dehydrogenation process is carried out.

    摘要翻译: 在已经在不存在氧气的情况下煅烧的钴基催化剂组合物存在下,具有2至5个碳原子的链烷烃或链烷烃的混合物被氧化脱氢。 催化剂组合物包括钴; 磷; 选自锌,钛,锆,铌,铟,铅和铋的至少一种助催化剂; 至少一种碱金属和氧。 催化剂组合物还可以含有硫和/或卤素。 如果氧化脱氢方法的进料含有具有多于2个碳原子的链烷烃,则在进行氧化脱氢过程的条件下也会发生这种链烷烃的一些裂解。

    Sulfur based metal cleaners
    33.
    发明授权
    Sulfur based metal cleaners 失效
    硫磺金属清洗剂

    公开(公告)号:US4435304A

    公开(公告)日:1984-03-06

    申请号:US441586

    申请日:1982-11-15

    IPC分类号: C11D7/06 C11D7/34 C23G1/14

    CPC分类号: C23G1/14 C11D7/06 C11D7/34

    摘要: A novel aqueous metal cleaning composition consisting essentially of a Group IA or IIA metal hydroxide and at least one active metal cleaning ingredient of the formula ##STR1## wherein R can be any hydrocarbylene radical having 1 to 6 carbon atoms, X is any H or OH, M is any group IA or IIA metal and n is the valence of M.

    摘要翻译: 基本上由IA或IIA族金属氢氧化物和至少一种下式的活性金属清洗组分组成的新型含水金属清洗组合物,其中R可以是具有1至6个碳原子的任何亚烃基,X是任何H或OH M是任何IA或IIA族金属,n是M的化合价。