利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

11 条记录 (耗时 0.011 秒)

    Uranium recovery from wet process phosphoric acid unsymmetrical phosphine oxides
    3.
    发明授权
    Uranium recovery from wet process phosphoric acid unsymmetrical phosphine oxides 失效
    铀回收湿法磷酸不对称氧化膦

    公开(公告)号：US4778663A

    公开(公告)日：1988-10-18

    申请号：US90178

    申请日：1987-08-27

    申请人： William A. Rickelton

    发明人： William A. Rickelton

    IPC分类号： C22B60/02 ,  C01G43/00

    CPC分类号： C22B60/026

    摘要： This invention relates to a process for the recovery of uranium from wet process phosphoric acid. More particularly, it concerns the use of a combination of a dialkyl phosphoric acid and a mixture of trialkyl phosphine oxides to extract uranium from wet process phosphoric acid.

    摘要翻译： 本发明涉及从湿法磷酸中回收铀的方法。 更具体地，涉及使用二烷基磷酸和三烷基氧化膦的混合物的组合从湿法磷酸提取铀。

    Selective removal of metals from aqueous solutions with dithiophosphinic acids
    4.
    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

    申请人： Timothy J. Brown ,  William A. Rickelton ,  Richard J. Boyle

    发明人： Timothy J. Brown ,  William A. Rickelton ,  Richard J. Boyle

    IPC分类号： C22B3/00 ,  B01D11/04 ,  C01G3/00 ,  C01G5/00 ,  C01G9/00 ,  C01G11/00 ,  C01G13/00 ,  C01G51/00 ,  C01G53/00 ,  C22B3/26 ,  C22B3/38 ,  C22B11/00 ,  C22B17/00 ,  C22B19/20 ,  C22B23/00 ,  C22B43/00

    CPC分类号： C01G53/003 ,  C01G11/003 ,  C01G13/003 ,  C01G3/003 ,  C01G5/003 ,  C01G51/003 ,  C01G9/003 ,  C22B3/007 ,  C22B3/0077 ,  Y02P10/234 ,  Y10S423/14

    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。

    Process for solvent extraction using phosphine oxide mixtures
    5.
    发明授权
    Process for solvent extraction using phosphine oxide mixtures 失效
    使用氧化膦混合物进行溶剂萃取的方法

    公开(公告)号：US4909939A

    公开(公告)日：1990-03-20

    申请号：US28851

    申请日：1987-03-23

    申请人： William A. Rickelton ,  Allan J. Robertson

    发明人： William A. Rickelton ,  Allan J. Robertson

    IPC分类号： B01D11/02 ,  C02F1/26

    CPC分类号： B01D11/0288 ,  C02F1/26

    摘要： A process for the removal of difficult-to-remove acidic organic compounds from aqueous solutions using novel phosphine oxide mixtures in which mixtures (1) at least two phosphine oxides are present, the total number of carbon atoms in a first oxide being at least 15 and the difference in the total number of carbon atoms in the first and second oxides being present in an amount of at least 5% by weight and not more than 60% by weight or (2) at least four phosphine oxides are present, the total number of carbon atoms in an oxide having at least no. of C atoms being at least 15, said phosphine oxides being present in an amount of at least 1% by weight and not more than 60% by weight. Unexpectedly high extractability is achieved using the mixtures.

    摘要翻译： 使用其中存在混合物（1）至少两种氧化膦的新型氧化膦混合物从水溶液中除去难以除去的酸性有机化合物的方法，第一氧化物中的总碳原子数至少为15 并且存在第一和第二氧化物中的总碳原子数量以至少5重量％且不超过60重量％的量存在，或（2）至少四个氧化膦的总量存在，总计 氧化物中至少没有碳原子数。 的C原子为至少15，所述氧化膦的存在量为至少1重量％且不超过60重量％。 使用混合物意想不到的高提取性。

    Extractant for the selective removal of cobalt(II) from aqueous solutions
    7.
    发明授权
    Extractant for the selective removal of cobalt(II) from aqueous solutions 失效
    用于从水溶液中选择性除去钴（II）的萃取剂

    公开(公告)号：US4382016A

    公开(公告)日：1983-05-03

    申请号：US391270

    申请日：1982-06-23

    申请人： William A. Rickelton ,  Allan J. Robertson ,  David R. Burley

    发明人： William A. Rickelton ,  Allan J. Robertson ,  David R. Burley

    IPC分类号： C01G51/00 ,  C22B3/38

    CPC分类号： C01G51/003 ,  C22B3/0066 ,  C22B3/24 ,  Y02P10/234

    摘要： Cobalt(II)-bearing aqueous solutions may be treated with an extractant comprising an organic-soluble phophinic acid, or a salt thereof, to separate the cobalt(II) from the aqueous solution. Typical extraction techniques compatible with the instant process include liquid-liquid extraction employing either mixer settlers or columns, packed beds of supported extractants as in ion exchange, liquid membrane extraction and selective supported membrane extraction.

    摘要翻译： 钴（II）水溶液可以用包含有机溶解的磷酸或其盐的萃取剂进行处理，以将钴（II）与水溶液分离。 与本发明方法相容的典型提取技术包括使用混合器沉淀器或柱的液 - 液萃取，离子交换中负载萃取剂的填充床，液膜萃取和选择性支撑膜萃取。

    Selective recovery of tin by solvent extraction using branched tertiary phosphine oxides
    9.
    发明授权
    Selective recovery of tin by solvent extraction using branched tertiary phosphine oxides 失效
    通过使用支链叔氧化膦的溶剂萃取选择性回收锡

    公开(公告)号：US5028334A

    公开(公告)日：1991-07-02

    申请号：US382375

    申请日：1989-07-20

    申请人： William A. Rickelton ,  Richard J. Boyle

    发明人： William A. Rickelton ,  Richard J. Boyle

    IPC分类号： C01G19/00 ,  C22B3/38

    CPC分类号： C01G19/003 ,  C22B3/0043 ,  Y02P10/234

    摘要： Disclosed are processes for the selective extraction of tin from aqueous acidic solutions bearing tin and other metal cations. Branched tertiary phosphine oxides comprising at least two branches per alkyl group show higher extraction coefficients, E, for tin than other metals, e.g. zinc (III), iron (II), iron (III), copper (II) and lead (II). Novel compositions for selectively extracting tin comprising combinations of symmetrical branched phosphine oxides and unsymmetrical phosphine oxides are also disclosed.

    摘要翻译： 公开了从含有锡和其它金属阳离子的酸性水溶液中选择性提取锡的方法。 包含每个烷基的至少两个分支的支化叔膦氧化物比其它金属显示较高的提取系数E，例如锡。 锌（III），铁（II），铁（III），铜（II）和铅（II）。 还公开了用于选择性提取包含对称支化膦氧化物和不对称氧化膦的组合的锡的新型组合物。

    Recovery of cobalt from ammoniacal solutions containing cobalt and nickel
    10.
    发明授权
    Recovery of cobalt from ammoniacal solutions containing cobalt and nickel 失效
    从含钴和镍的氨溶液回收钴

    公开(公告)号：US4619816A

    公开(公告)日：1986-10-28

    申请号：US799230

    申请日：1985-11-21

    申请人： William A. Rickelton

    发明人： William A. Rickelton

    IPC分类号： C01G51/00 ,  C01G53/00 ,  C22B3/38 ,  C22B23/04

    CPC分类号： C22B3/0066 ,  C01G51/003 ,  C01G53/003 ,  Y02P10/234 ,  Y10S423/14

    摘要： A process for the extraction of Co (III) from ammoniacal solutions comprising Co (III) and Ni (II). The process comprises:(a) contacting said ammoniacal solution with(b) bis (2,4,4-trimethylpentyl)phosphinic acid or an ammonium or alkali metal salt thereof,said ammoniacal solution forming the aqueous phase and said phosphinic acid, or salt thereof, forming the organic phase, and(c) a phase modifierwhereby the Co (III) values are extracted from said aqueous phase to said organic phase.

    摘要翻译： 从包含Co（III）和Ni（II）的氨溶液中提取Co（III）的方法。 该方法包括：（a）使所述氨溶液与（b）双（2,4,4-三甲基戊基）次膦酸或其铵盐或碱金属盐接触，所述氨水形成水相和所述次膦酸或盐 形成有机相，和（c）相调节剂，其中Co（III）值从所述水相萃取到所述有机相。