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25 条记录 (耗时 0.013 秒)

    Alkylphenoxy substituted bis (thio phosphoryl) amines
    1.
    发明授权
    Alkylphenoxy substituted bis (thio phosphoryl) amines 失效
    烷基苯氧基取代的双（硫代磷酰）胺

    公开(公告)号：US5557003A

    公开(公告)日：1996-09-17

    申请号：US419534

    申请日：1995-04-10

    申请人： John Campbell ,  Raymond F. Dalton ,  Peter M. Quan

    发明人： John Campbell ,  Raymond F. Dalton ,  Peter M. Quan

    IPC分类号： B01D11/00 ,  C07F9/24 ,  C07F9/36 ,  C07F9/44 ,  C22B3/38

    CPC分类号： C07F9/2495 ,  C07F9/36 ,  C07F9/4484 ,  C22B19/26 ,  C22B3/007 ,  C22B3/0075 ,  Y02P10/234

    摘要： A process for extracting metal values especially zinc values from aqueous solutions of metal salts which comprises contacting the aqueous solution with an organic phase comprising a compound of the formula: ##STR1## wherein each of R.sup.1, R.sup.2, R.sup.3 and R.sup.4, independently, represents an optionally substituted hydrocarbyl or hydrocarbyloxy group or R.sup.1 and R.sup.2 together with the attached phosphorus atom and/or R.sup.3 and R.sup.4 together with the attached phosphorus atom form a 5- to 8-membered heterocyclic ring.

    摘要翻译： 一种用于从金属盐水溶液中提取金属值，特别是锌值的方法，该方法包括使该水溶液与包含下式化合物的有机相接触：其中R1，R2，R3和R4各自独立地表示 任选取代的烃基或烃氧基或R 1和R 2与连接的磷原子和/或R 3和R 4与连接的磷原子一起形成5-至8-元杂环。

    Iron or aluminum precipitation in strong acid systems
    2.
    发明授权
    Iron or aluminum precipitation in strong acid systems 失效
    铁或铝在强酸体系中析出

    公开(公告)号：US4758414A

    公开(公告)日：1988-07-19

    申请号：US67914

    申请日：1987-06-30

    申请人： Dennis R. Gifford ,  Marvin L. Dettloff

    发明人： Dennis R. Gifford ,  Marvin L. Dettloff

    IPC分类号： C01F7/00 ,  C01G49/00 ,  C22B3/38 ,  C22B21/00

    CPC分类号： C22B3/0075 ,  C01F7/00 ,  C01G49/0009 ,  C22B3/0067 ,  C22B3/0071 ,  Y02P10/234 ,  Y10S423/02

    摘要： The precipitation of iron and aluminum from their solutions in strong acids, eg. 18% HCl and 25% H.sub.2 SO.sub.4, is accomplished by adding to the acid solution certain organic aminophosphonic acids in which at least 50% of the amine hydrogens have been substituted with methylenephosphonic acid groups. Particularly preferred compounds are the methylenephosphonic acid derivatives of ammonia and polyalkylenepolyaminepoly(methylenephosphonic acids). The completely phosphonomethylated derivatives are most preferred.

    摘要翻译： 铁和铝从强酸中的溶液中沉淀出来， 18％HCl和25％H 2 SO 4是通过向酸性溶液中加入某些有机氨基膦酸，其中至少50％的胺氢被亚甲基膦酸基取代。 特别优选的化合物是氨和聚亚烷基多氨基聚（亚甲基膦酸）的亚甲基膦酸衍生物。 完全膦酰基甲基化的衍生物是最优选的。

    Recovery of transition metals from aqueous solutions
    9.
    发明授权
    Recovery of transition metals from aqueous solutions 失效
    从水溶液中回收过渡金属

    公开(公告)号：US4880546A

    公开(公告)日：1989-11-14

    申请号：US285464

    申请日：1988-12-16

    申请人： Brian L. Goodall ,  Paulus A. M. Grotenhuis

    发明人： Brian L. Goodall ,  Paulus A. M. Grotenhuis

    IPC分类号： C01G51/00 ,  C01G55/00 ,  C07C45/50 ,  C22B3/38

    CPC分类号： C01G51/003 ,  C01G55/001 ,  C07C45/50 ,  C22B3/0047 ,  C22B3/0051 ,  C22B3/0075 ,  C22B3/0077 ,  Y02P10/234

    摘要： Process for the recovery of a transition metal from an aqueous solution containing a complex of the transition metal with a cyclic phosphite by hydrolyzing the cyclic phosphite, contacting the hydrolysis reaction mixture with a compound forming a water-stable complex with the transition metal, extracting the reaction mixture thus formed with an organic extraction agent for the water-stable complex and separating an organic extract phase containing the transition metal from an aqueous raffinate phase. The process is particularly suitable for the recovery of the Rh or Co from spent hydroformylation catalysts and of Pd from spent carbonylation catalysts.

    摘要翻译： 通过水解环状亚磷酸酯从含有过渡金属配合物的水溶液中回收过渡金属的方法，使水解反应混合物与形成与过渡金属形成水稳定性络合物的化合物接触，提取 由此形成水溶性复合物的有机萃取剂并从含水萃余液相中分离含有过渡金属的有机提取相。 该方法特别适用于从过量羰基化催化剂中回收Rh或Co，以及从废羰基化催化剂中回收Pd。

    Extraction of polyvalent metals with organodiphosphonic acids
    10.
    发明授权
    Extraction of polyvalent metals with organodiphosphonic acids 失效
    用有机二膦酸萃取多价金属

    公开(公告)号：US4836956A

    公开(公告)日：1989-06-06

    申请号：US77708

    申请日：1987-07-24

    申请人： Kenneth M. Kem

    发明人： Kenneth M. Kem

    IPC分类号： C01G49/00 ,  C07F9/40 ,  C08F8/40 ,  C22B3/38

    CPC分类号： C01G49/0009 ,  C07F9/4025 ,  C08F8/40 ,  C22B3/0075 ,  Y02P10/234

    摘要： Polyvalent cations (e.g., U(IV), Fe(III) can be extracted from aqueous solution using novel organophosphorus compounds of the formulas: ##STR1## wherein R.sup.1 and R.sup.2 are the same or different and are selected from alkyl, alkoxyl, alkylaryl and alkylaryloxyl groups having from 1 to 18 carbon atoms or hydroxyl;R.sup.3 is independently selected from substituted and unsubstituted alkyl and alkylaryl groups having 1 to about 18 carbon atoms or hydrogen;R.sup.4 is independently selected from alkyl and alkylaryl groups having 1 to about 18 carbon atoms; provided that the sum of the carbon atoms of the R.sup.1, R.sup.2, R.sup.3 and R.sup.4 groups is at least 15; andR.sup.5 is independently selected from substituted and unsubstituted alkyl and alkylaryl groups having 1 to about 18 carbon atoms or a polymeric group; provided that the sum of the carbon atoms of the R.sup.1, R.sup.2 and R.sup.5 groups is at least 16.

    摘要翻译： 可以使用下式的新的有机磷化合物从水溶液中提取多价阳离子（例如U（IV），Fe（III））：其中R 1和R 2相同或不同，并且选自烷基，烷氧基，烷基芳基和 具有1至18个碳原子的烷基芳氧基或羟基; R 3独立地选自具有1至约18个碳原子的取代和未取代的烷基和烷基芳基或氢; R 4独立地选自具有1至约18个碳原子的烷基和烷基芳基 条件是R 1，R 2，R 3和R 4基团的碳原子之和为至少15;并且R 5独立地选自具有1至约18个碳原子的取代和未取代的烷基和烷基芳基或聚合基团; R 1，R 2和R 5基团的碳原子之和至少为16。