公开(公告)号：US06238544B1

公开(公告)日：2001-05-29

申请号：US09374505

申请日：1999-08-16

申请人： Chisako Oohara ,  Terumi Matsuoka ,  Takamichi Kishi ,  Takako Okuno

发明人： Chisako Oohara ,  Terumi Matsuoka ,  Takamichi Kishi ,  Takako Okuno

IPC分类号： C25B134

CPC分类号： C01D3/145 ,  C01D3/14 ,  Y02W10/37

摘要： In a method of removing impurities, especially iodine and/or silica ions, from a salt solution to be used for electrolysis, the salt solution and zirconium hydroxide are brought into contact with each other under acidic conditions, and the zirconium hydroxide adsorbs the impurities. Thereafter, the zirconium hydroxide containing the adsorbed impurities is brought into contact with an aqueous solution at a higher pH value to desorb the impurities from the zirconium hydroxide, thereby enabling the zirconium hydroxide to be recycled.

摘要翻译： 在从用于电解的盐溶液中除去杂质，特别是碘和/或二氧化硅离子的方法中，在酸性条件下使盐溶液和氢氧化锆相互接触，氢氧化锆吸附杂质。 此后，将含有吸附杂质的氢氧化锆与较高pH值的水溶液接触以从氢氧化锆中除去杂质，从而使氢氧化锆能够再循环。