Removal of mercury from naturally occurring streams containing entrained
mineral particles
    6.
    发明授权
    Removal of mercury from naturally occurring streams containing entrained mineral particles 失效
    从含有夹带的矿物颗粒的天然存在的流中去除汞

    公开(公告)号:US5523067A

    公开(公告)日:1996-06-04

    申请号:US336591

    申请日:1994-11-09

    申请人: John Markovs

    发明人: John Markovs

    IPC分类号: C01G13/00 C22B43/00 B01D49/00

    摘要: Liquid phase hydrocarbon fractions of wet natural gas streams which have been in contact while in the liquid phase with mineral particles entrained in the natural gas stream as it is recovered from the wellhead are found to contain a suspension of such particles. These particles contain loosely bound mercury which is capable of contaminating other constituents of the natural gas stream which come into contact with the particles. Effective procedures to purify such wet natural gas streams must include removal of the mineral particles as well as the element mercury dissolved in the liquid phase hydrocarbons or admixed with the vapor phase hydrocarbons.

    摘要翻译: 在液相中与湿气天然气流接触的液相烃馏分与从井口回收的天然气流中夹带的矿物颗粒被发现含有这种颗粒的悬浮液。 这些颗粒含有松散结合的汞,其能够污染与颗粒接触的天然气流的其它成分。 纯化这种湿天然气流的有效程序必须包括去除矿物颗粒以及溶解在液相烃中的元素汞或与气相烃混合。

    Selective removal of metals from aqueous solutions with dithiophosphinic
acids
    7.
    发明授权
    Selective removal of metals from aqueous solutions with dithiophosphinic acids 失效
    用二硫代次膦酸从水溶液中选择性去除金属

    公开(公告)号:US4721605A

    公开(公告)日:1988-01-26

    申请号:US758603

    申请日:1985-07-24

    摘要: A process for the extraction of metals selected from the group consisting of zinc (II), silver (I), cadmium (II), mercury (II), nickel (II), cobalt (II), and copper (II) from an aqueous solution containing, in addition to said metals, metals selected from the group consisting of calcium (II) and magnesium (II) is disclosed. The process comprises contacting the aqueous solution having an equilibrium pH within the range of about 0.2 to about 3 with an extractant. The extractant comprises an organic-soluble dithiophosphinic acid or ammonium, alkali or alkaline earth metal salt thereof represented by the formula: ##STR1## wherein R.sup.1 and R.sup.2 are the same or different and are selected from the group consisting of substituted or unsubstituted alkyl, cycloalkyl, alkoxyalkyl, alkylcycloalkyl, aryl, alkylaryl, aralkyl and cycloalkylaryl radicals having from about 2 to about 24 carbon atoms and X is either hydrogen or an ammonium, alkali or alkaline earth metal salt forming radical.

    摘要翻译: 选自锌(II),银(I),镉(II),汞(II),镍(II),钴(II)和铜(II))的金属的提取方法, 还公开了除所述金属以外含有选自钙(II)和镁(II)的金属的水溶液。 该方法包括使平衡pH在约0.2至约3范围内的水溶液与萃取剂接触。 提取剂包括由下式表示的有机可溶性二硫代次膦酸或其铵,碱金属或碱土金属盐:其中R 1和R 2相同或不同,并且选自取代或未取代的烷基,环烷基 具有约2至约24个碳原子的烷氧基烷基,烷基环烷基,芳基,烷基芳基,芳烷基和环烷基芳基,X是氢或形成铵,碱金属或碱土金属盐的基团。

    Mercury and copper selective metal chelating resins
    10.
    发明授权
    Mercury and copper selective metal chelating resins 失效
    汞和铜选择性金属螯合树脂

    公开(公告)号:US4190709A

    公开(公告)日:1980-02-26

    申请号:US908820

    申请日:1978-05-23

    摘要: Mercury and copper ions may be removed very selectively from aqueous solutions by means of a metal-chelating resin consisting of a polymer produced by the condensation of a phenolic component comprising one or more phenols, formaldehyde, and a diamino component comprising one or more di-(secondary amino) compounds under neutral conditions. The resin is prepared by condensing approximately equimolar quantities of a phenolic component comprising one or more phenols, and a diamino component comprising one or more di-(secondary amino) compounds with approximately twice the molar quantity of formaldehyde under Mannich reaction conditions.

    摘要翻译: 汞和铜离子可以通过金属螯合树脂非常选择性地从水溶液中除去,所述金属螯合树脂由通过包含一种或多种酚,甲醛和二氨基组分的酚类组分缩合制备的聚合物,所述酚组分包含一个或多个二 - (仲氨基)化合物。 在曼尼希反应条件下,将大约等摩尔量的包含一种或多种酚的酚类组分和包含一种或多种二 - (仲氨基)化合物的二氨基组分与大约两倍摩尔量的甲醛缩合制备树脂。