Method for removing As, or As and Sb and/or Bi from sulfuric acid
    1.
    发明授权
    Method for removing As, or As and Sb and/or Bi from sulfuric acid 失效
    从硫酸中除去As或As,Sb和/或Bi的方法

    公开(公告)号:US4179495A

    公开(公告)日:1979-12-18

    申请号:US935860

    申请日:1978-08-22

    IPC分类号: C01B17/90 C25C1/12

    摘要: A method for removing As, or As and Sb and/or Bi wherein acidic solution of sulfuric acid such as a copper electrolyte of having a free sulfuric acid concentration of less than 700g./l. and containing at least arsenic among arsenic, antimony and bismuth as impurities is warmed to be above 50.degree. C. or preferably above 60.degree. C. with the addition of H.sub.3 AsO.sub.4 in advance as required, one or a mixture of both of Sb.sub.2 O.sub.3 and Bi.sub.2 O.sub.3 preferably kneaded with water or the added solution is added to and mixed with the solution and the produced precipitate is separated to discharge the impurities out of the solution.

    摘要翻译: 用于除去As,或As和Sb和/或Bi的方法,其中游离硫酸浓度小于700g / l的硫酸如铜电解质的酸性溶液。 并在砷,锑,铋中含有至少砷作为杂质,如果需要,可以预先添加H3AsO4,从而将其加热至50℃以上,优选60℃以上,优选Sb 2 O 3与Bi 2 O 3的一种或两种以上的混合物 与水混合或加入溶液并与溶液混合,分离生成的沉淀物以将杂质排出溶液。

    Process for separating antimony from acidic solutions containing same
with an organic diluent containing a polyol
    2.
    发明授权
    Process for separating antimony from acidic solutions containing same with an organic diluent containing a polyol 失效
    将含有其的酸性溶液与含有多元醇的有机二氧化物分离的方法

    公开(公告)号:US5093090A

    公开(公告)日:1992-03-03

    申请号:US466319

    申请日:1990-05-04

    IPC分类号: C01B17/90 C01G30/00 C22B3/26

    摘要: There is disclosed a method for the separation of antimony from acidic solutions which contain antimony, alone, or together with other metallic ions, by extracting antimony with an organic, water-immiscible, polyol-containing diluent. The method comprises the steps of contacting the antimony-containing acidic solution with a water-immiscible organic diluent containing at least one polyol dissolved therein, preferably a diol, said polyol serving to extract the antimony. The polyol serves to selectively extract the antimony from the acidic solution to the exclusion of other metallic ions such as copper and nickel.

    摘要翻译: PCT No.PCT / EP88 / 01084 371日期1990年5月4日 102(e)日期1990年5月4日PCT提交1988年11月25日PCT公布。 出版物WO89 / 05279 日期:1989年6月15日。公开了通过用有机的,与水不混溶的含多元醇的稀释剂萃取锑来分离锑与含有锑的单独或与其它金属离子一起的酸性溶液的方法。 该方法包括使含锑酸性溶液与含有至少一种多元醇溶解的与水不混溶的有机稀释剂接触,优选二醇,所述多元醇用于萃取锑。 多元醇用于从酸性溶液中选择性提取锑,排除其它金属离子如铜和镍。

    Method for selectively removing antimony and bismuth from sulphuric acid
solutions
    3.
    发明授权
    Method for selectively removing antimony and bismuth from sulphuric acid solutions 失效
    从硫酸溶液中选择性除去锑和铋的方法

    公开(公告)号:US5366715A

    公开(公告)日:1994-11-22

    申请号:US138024

    申请日:1993-10-19

    摘要: The present invention is concerned with a method for selectively removing antimony and bismuth from an impure sulphuric acid solution containing at least 50 g/L of acid and some concentration of ferric ion (for example copper refinery electrolyte), is disclosed. The method involves contacting the impure solution with a sufficient quantity of finely divided metallic copper so as to prereduce all ferric ion present in the solution to the ferrous oxidation state. The prereduced solution is then contacted with a chelating resin. The method avoids the deleterious loading of ferric iron onto the ion exchange resin and prevents the return of excessive amounts of chloride ion with the purified electrolyte.

    摘要翻译: 本发明涉及从含有至少50g / L的酸和一些浓度的铁离子(例如炼铜电解液)的不纯的硫酸溶液中选择性地除去锑和铋的方法。 该方法包括使不纯溶液与足量的细碎金属铜接触,以便将溶液中存在的所有铁离子预还原至亚铁氧化态。 然后将预还原的溶液与螯合树脂接触。 该方法避免了铁离子在离子交换树脂上的有害负载,并防止了过量的氯离子与纯化电解质的返回。

    Method for purification of sulfuric acid solution
    5.
    发明授权
    Method for purification of sulfuric acid solution 失效
    硫酸溶液的纯化方法

    公开(公告)号:US4559216A

    公开(公告)日:1985-12-17

    申请号:US586488

    申请日:1984-03-05

    摘要: A method for purification of a sulfuric acid solution such as, for example, a copper electrolyte which entrains at least one metal ion species selected from the group consisting of antimony ions, bismuth ions, and iron ions and having a sulfuric acid concentration of at least 50 g/liter is disclosed. The method comprises exposing the sulfuric acid solution to a chelating resin possessing aminomethylenephosphonic acid group as a chelate forming group thereby effecting adsorptive separation of the aforementioned at least one metal ion species from the solution. By the method described above, the antimony ions, bismuth ions, and/or iron ions contained as impurities in the copper electrolyte can be easily and efficiently separated out of the system without entailing any ecological problem.

    摘要翻译: 一种硫酸溶液的纯化方法,例如铜电解质,其夹带至少一种选自锑离子,铋离子和铁离子的金属离子种类,其硫酸浓度至少为 公开了50克/升。 该方法包括将硫酸溶液暴露于具有氨基亚甲基膦酸基团的螯合树脂作为螯合形成基团,从而进行上述至少一种金属离子物质与溶液的吸附分离。 通过上述方法,铜电解液中作为杂质含有的锑离子,铋离子和/或铁离子可以容易且有效地从体系中分离出来,而不会引起生态问题。