Production of high purity uranium compounds from crude yellow cake
    2.
    发明授权
    Production of high purity uranium compounds from crude yellow cake 失效
    从粗黄色蛋糕生产高纯度铀化合物

    公开(公告)号:US4292279A

    公开(公告)日:1981-09-29

    申请号:US31655

    申请日:1979-04-19

    申请人: Robert E. Reusser

    发明人: Robert E. Reusser

    IPC分类号: C01G43/00 C01G43/01

    摘要: High purity ammonium uranyl tricarbonate is produced from crude plant yellow cake by treatment of the yellow cake with a mineral acid, neutralization of the acidic solution with a conversion of the uranium therein to ammonium uranyl tricarbonate, precipitation of the ammonium uranyl tricarbonate with a non-solvent, followed by separation. Optionally, the ammonium uranyl tricarbonate can be calcined to produce high purity uranium oxides.

    摘要翻译: 通过用无机酸处理黄色饼状物,由粗植物黄色饼形成高纯度的三氧化二铀铵,将其中的铀转化为酸性溶液中和,将其转化为三氧化二铀铵, 溶剂,然后分离。 任选地,碳酸铀铵可以被煅烧以产生高纯度铀氧化物。

    Removal of olefin from aliphatic hydrocarbon by treatment with active
solid
    6.
    发明授权
    Removal of olefin from aliphatic hydrocarbon by treatment with active solid 失效
    通过用活性固体处理从脂族烃中除去烯烃

    公开(公告)号:US4351980A

    公开(公告)日:1982-09-28

    申请号:US41454

    申请日:1979-05-22

    IPC分类号: C07C7/12 C09K3/30

    摘要: Hydrocarbon, suitable for use as propellant, is contacted with a solid effective to remove odor-forming impurity therefrom. Hydrocarbons include isobutene-containing stream also containing minor proportions of unsaturated hydrocarbon, e.g. ethylene, propylene, isobutylene, and 2-butenes. Solids include an acid montmorillonite clay, aluminum chloride, AlCl.sub.3 .multidot.HCl, AlCl.sub.3 .multidot.RCl, at least one metal of Groups I, II, and III of the periodic table, and supported H.sub.3 PO.sub.4.

    摘要翻译: 适合用作推进剂的碳氢化合物与有效地从其中除去产生气味的杂质的固体接触。 烃类包括含有少量不饱和烃的含异丁烯的物流,例如。 乙烯,丙烯,异丁烯和2-丁烯。 固体包括酸性蒙脱石粘土,氯化铝,AlCl 3 x HCl,AlCl 3 xRCl,元素周期表第I,II和III族中的至少一种金属和负载的H 3 PO 4。

    Catalysts and process for olefin conversion
    9.
    发明授权
    Catalysts and process for olefin conversion 失效
    催化剂和烯烃转化方法

    公开(公告)号:US4575575A

    公开(公告)日:1986-03-11

    申请号:US596984

    申请日:1984-04-05

    IPC分类号: B01J23/30 C07C6/04 C07C6/06

    CPC分类号: B01J23/30 C07C6/04 C07C6/06

    摘要: A process for disproportionation of olefins is disclosed employing a novel catalyst comprising a silica support treated with an oxide or oxide precursor of tungsten and a Group I oxide or compound convertible to the oxide in admixture with a double bond isomerization catalyst.

    摘要翻译: 公开了一种用于歧化烯烃的方法,其使用包含由钨和氧化物氧化物前体处理的二氧化硅载体的新型催化剂,以及与双键异构化催化剂混合可转化为氧化物的第I族氧化物或化合物。