Bis-bibenzimidazole composition
    31.
    发明公开
    Bis-bibenzimidazole composition 失效
    双联苯并咪唑组合物

    公开(公告)号:EP0513966A3

    公开(公告)日:1993-03-03

    申请号:EP92301575.4

    申请日:1992-02-25

    Applicant: ZENECA LIMITED

    Abstract: A composition of bibenzimidazoles of the Formula (I) :

    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 2 COOR, -CH(COOR) 2 and -COOR; or (b) together form a group selected from

    and

    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 ; and C & 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)
    wherein X and Y are as hereinbefore defined ; T, U, V & W which may be the same or different, are H, R 1 or OR 1 provided at least one of T, U, V & W is R 1 or OR 1 ; and R 1 is C 1-6 -alkyl ; which are suitable for use in the extraction of zinc from aqueous solutions of zinc in the presence of other metals.

    Abstract translation: 式(I)的联苯并咪唑的组合物:其中可以相同或不同并且一起含有总共12至52个饱和碳原子的X和Y是(a)各自选自-R,-COR, -CH 2 COOR,-CH(COOR)2和-COOR; 或(b)一起形成选自和其中R是任选取代的烃基的基团,A和B与它们所连接的两个碳原子一起形成任选取代的苯环; 并且C&D与它们连接的两个碳原子一起形成任选取代的苯环; 其特征在于组合物中至少50重量%的联苯并咪唑类具有式(II),其中X和Y如上所定义; T,U,V和W可以相同或不同,为H,R1或OR1,条件是T,U,V和W中至少一个为R1或OR1; 和R1是C1-6-烷基; 它们适用于在存在其他金属的情况下从锌水溶液中提取锌。

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