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    Use of hydrocarbon-soluble aminomethylene phosphonic acid derivatives in the solvent extraction of iron ions from aqueous solutions
    1.
    发明授权
    Use of hydrocarbon-soluble aminomethylene phosphonic acid derivatives in the solvent extraction of iron ions from aqueous solutions 失效
    使用烃溶性氨基亚甲基膦酸衍生物在溶剂中从水溶液中提取铁离子

    公开(公告)号：US5795482A

    公开(公告)日：1998-08-18

    申请号：US750984

    申请日：1997-01-08

    申请人： Michael Ehle ,  Knut Oppenlander

    发明人： Michael Ehle ,  Knut Oppenlander

    IPC分类号： C09K3/00 ,  C07F9/38 ,  C22B3/26 ,  C22B3/28 ,  C22B3/32 ,  C22B3/38 ,  C22B15/14 ,  C22B19/32 ,  C22B3/40 ,  C22B3/42

    CPC分类号： C22B3/0067 ,  C07F9/3808 ,  C22B3/0009 ,  C22B3/0014 ,  C22B3/0024 ,  C22B3/0043 ,  Y02P10/234 ,  Y10S210/911

    摘要： Hydrocarbon-soluble aminomethylenephosphonic acid derivatives comprising the structural element of the formula I ##STR1## where R.sup.1 and R.sup.2 are hydrogen, C.sub.1 -C.sub.30 -alkyl which can additionally bear up to 15 hydroxyl groups and/or be interrupted by up to 14 non-adjacent oxygen atoms, C.sub.2 -C.sub.30 -alkenyl, C.sub.7 -C.sub.18 -aralkyl or C.sub.6 -C.sub.14 -aryl which may be substituted by up to three C.sub.1 -C.sub.12 -alkyl groups, C.sub.1 -C.sub.12 -alkoxy groups, halogen atoms, cyano groups, hydroxyl groups or C.sub.1 -C.sub.4 -alkoxycarbonyl groups, for the solvent extraction of iron ions from aqueous solutions.

    摘要翻译： PCT No.PCT / EP95 / 02327 Sec。 371日期1996年1月8日 102（e）日期1996年1月8日PCT归档1995年6月16日PCT公布。 公开号WO96 / 00309 日期1996年1月4日含有式I的结构元素的水溶性氨基亚甲基膦酸衍生物（Ⅰ）其中R1和R2是氢，C1-C30-烷基，其还能够承载多达15个羟基和/或 被多达14个不相邻氧原子间隔的C2-C30-烯基，C7-C18-芳烷基或C6-C14-芳基，其可被至多三个C1-C12-烷基取代，C1-C12-烷氧基， 卤素原子，氰基，羟基或C 1 -C 4 - 烷氧基羰基，用于从水溶液中萃取铁离子。

    Selective recovery of tin by solvent extraction using branched tertiary phosphine oxides
    2.
    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。

    Cyanide recovery by solvent extraction
    4.
    发明授权
    Cyanide recovery by solvent extraction 有权
    氰化物通过溶剂萃取回收

    公开(公告)号：US06200545B1

    公开(公告)日：2001-03-13

    申请号：US09235876

    申请日：1999-01-22

    申请人： David Bruce Dreisinger

    发明人： David Bruce Dreisinger

    IPC分类号： C02F126

    CPC分类号： C22B11/08 ,  C02F1/26 ,  C22B3/0043 ,  C22B3/0063 ,  Y02P10/234 ,  Y10S210/903 ,  Y10S210/904

    摘要： The invention provides a process for recovering hydrogen cyanide from an aqueous solution by extracting the hydrogen cyanide into an organic solvent phase. The organic solvent may comprise a neutral organophosphorous compounds, such as compounds selected from the group consisting of alkyl or aryl substituted phosphates, phosphonates and phosphine oxides. In alternative embodiments the organophosphorous compound is tri-butyl phosphate, di-butyl-butyl-phosphonate or tri-alkyl phosphine oxides. The organic solvent may be diluted in an organic diluent, such as an aliphatic or kerosene-type diluent. Alternative dilutions may be used, such as 75%, 50% or 25%. In some embodiments, the pH of the aqueous solution containing dissolved cyanide may be adjusted to between 2 and 8, or between 3 and 7, or between 4 and 6. The organic solvent may be contacted following extraction with a basic aqueous solution to strip cyanide from the organic solvent into a basic aqueous cyanide strip solution. The stripped organic solvent may then be returned to the loading process, to extract HCN from fresh aqueous solution.

    摘要翻译： 本发明提供了通过将氰化氢萃取到有机溶剂相中从水溶液中回收氰化氢的方法。 有机溶剂可以包含中性有机亚磷化合物，例如选自烷基或芳基取代的磷酸酯，膦酸酯和氧化膦的化合物。 在替代实施方案中，有机亚磷化合物是磷酸三丁酯，二丁基 - 丁基膦酸酯或三烷基氧化膦。 有机溶剂可以在有机稀释剂中稀释，例如脂族或煤油型稀释剂。 可以使用替代稀释剂，例如75％，50％或25％。 在一些实施方案中，含有溶解氰化物的水溶液的pH可以调节至2至8，或3至7之间，或4至6之间。有机溶剂可在萃取后与碱性水溶液接触以剥离氰化物 从有机溶剂中加入碱性氰化氰水溶液。 然后将汽提的有机溶剂返回加载过程，从新鲜水溶液中提取HCN。

    METHODS OF REDUCING RADIOTOXICITY IN AQUEOUS ACIDIC SOLUTIONS AND A REACTION SYSTEM FOR SAME
    8.
    发明申请
    METHODS OF REDUCING RADIOTOXICITY IN AQUEOUS ACIDIC SOLUTIONS AND A REACTION SYSTEM FOR SAME 审中-公开
    降低酸性溶液中放射性的方法及其反应体系

    公开(公告)号：US20110226694A1

    公开(公告)日：2011-09-22

    申请号：US12728713

    申请日：2010-03-22

    申请人： Leigh R. Martin ,  Nicholas C. Schmitt ,  Peter R. Zalupski ,  Bruce J. Mincher

    发明人： Leigh R. Martin ,  Nicholas C. Schmitt ,  Peter R. Zalupski ,  Bruce J. Mincher

    IPC分类号： B01D11/00 ,  G21C1/00 ,  C22B3/00

    CPC分类号： C22B60/0295 ,  C22B3/0043 ,  C22B60/04 ,  G21F9/125 ,  Y02P10/234

    摘要： A method of reducing radiotoxicity in an aqueous acidic solution is disclosed. The method comprises oxidizing actinide ions in an aqueous acidic solution to hexavalent actinide ions. An organic phase comprising at least one organophosphorus extractant is added to the aqueous acidic solution. The at least one organophosphorus extractant comprises a compound having from one oxygen atom to three oxygen atoms bonded to a phosphorus atom and having one of the oxygen atoms bonded to the phosphorus atom through a phosphorus-oxygen double bond. Complexes are formed between the hexavalent actinide ions and the at least one organophosphorus extractant. The complexes are separated from the aqueous acidic solution. An additional method and a reaction system for removing actinides from an aqueous acidic solution are also disclosed.

    摘要翻译： 公开了一种在酸性水溶液中降低放射毒性的方法。 该方法包括将酸性水溶液中的锕系离子氧化成六价锕系离子。 将含有至少一种有机磷萃取剂的有机相加入酸性水溶液中。 所述至少一种有机磷萃取剂包括具有一个氧原子与三个与氧原子结合的氧原子并且具有通过磷 - 氧双键与磷原子键合的氧原子之一的化合物。 在六价锕系离子和至少一种有机磷萃取剂之间形成络合物。 将复合物与酸性水溶液分离。 还公开了用于从酸性水溶液中除去锕系的另外的方法和反应体系。