Methods and compositions for inhibitoring polymerization of vinyl
monomers
    1.
    发明授权
    Methods and compositions for inhibitoring polymerization of vinyl monomers 失效
    抑制乙烯基单体聚合的方法和组合物

    公开(公告)号:US5221498A

    公开(公告)日:1993-06-22

    申请号:US733480

    申请日:1991-07-22

    IPC分类号: C10L1/182

    CPC分类号: C10L1/1826

    摘要: Methods and compositions are provided for inhibiting the polymerization of a vinyl monomer during elevated processing thereof or during storage or shipment of the monomer containing product. The compositions comprise a combination of a dihydroxybenzene compound and an organic amine compound.

    摘要翻译: 提供的方法和组合物用于在升高的处理期间或在含单体产品的储存或运输期间抑制乙烯基单体的聚合。 组合物包含二羟基苯化合物和有机胺化合物的组合。

    Methods of extracting iron species from liquid hydrocarbons
    2.
    发明授权
    Methods of extracting iron species from liquid hydrocarbons 失效
    从液态烃中提取铁物质的方法

    公开(公告)号:US5078858A

    公开(公告)日:1992-01-07

    申请号:US561049

    申请日:1990-08-01

    IPC分类号: C10G21/16 C10G29/22

    CPC分类号: C10G29/22 C10G21/16

    摘要: Methods of extracting iron species, such as iron naphthenate, and iron sulfides, from a liquid hydrocarbon, such as crude oil are disclosed. A chelant selected from oxalic or citric acid is added directly to the liquid hydrocarbon and mixed therewith. Then, wash water is added to form a water in oil emulsion. The emulsion is resolved, with iron laden aqueous phase being separated.

    摘要翻译: 公开了从诸如原油的液体烃中提取铁物质如环烷酸铁和硫化铁的方法。 将选自草酸或柠檬酸的螯合剂直接加入到液体烃中并与其混合。 然后,加入洗涤水以形成油包水乳液。 乳液被分离,含铁的水相被分离。