Bis-bibenzimidazole composition
    1.
    发明授权
    Bis-bibenzimidazole composition 失效
    双联苯并咪唑组合物

    公开(公告)号:US5258524A

    公开(公告)日:1993-11-02

    申请号:US843405

    申请日:1992-02-28

    摘要: A composition of bibenzimidazoles of the Formula (I): ##STR1## wherein X & Y which may be the same or different and, taken together, contain a total of from 12 to 52 saturated carbon atoms, are (a) each selected from --R, --COR, --CH.sub.2 COOR, --CH(COOR).sub.2 and --COOR; or (b) together form a group selected from ##STR2## wherein R is an optionally substituted hydrocarbyl group,A & B taken together with the two carbon atoms to which they are linked form an optionally substituted benzene ring; andC & D taken together with the two carbon atoms to which they are linked form an optionally substituted benzene ring;characterised in that at least 50% by weight of the bibenzimidazoles in the composition are of Formula (II) ##STR3## wherein X and Y are as hereinbefore defined;T, U, V & W which may be the same or different, are H, R.sup.1 or OR.sup.1 provided at least one of T, U, V & W is R.sup.1 or OR.sup.1 ;and R.sup.1 is C.sub.1-6 -alkyl;which are suitable for use in the extraction of zinc from aqueous solutions of zinc in the presence of other metals.

    Alkylphenoxy substituted bis (thio phosphoryl) amines
    4.
    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

    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。

    Process for extracting metal values from aqueous solution
    7.
    发明授权
    Process for extracting metal values from aqueous solution 失效
    从水溶液中提取金属值的方法

    公开(公告)号:US5433855A

    公开(公告)日:1995-07-18

    申请号:US160867

    申请日:1993-12-03

    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。