To provide a method in which palladium can selectively be separated from chloride solution containing arsenic and the palladium at a low cost, and even in the case that the arsenic concentration varies, the palladium can stably and efficiently be separated.
After adsorbing the palladium while a primary adsorbent composed of an anion exchange resin having amine or polyamine as a functional group, is brought into contact with the chloride solution containing the palladium and the arsenic, at least one secondary adsorbent selected from an active carbon, quaternary ammonium salt type anion exchange resin, pyridine type anion exchange resin and dithiocarbamic acid-based chelate resin, is brought into contact with liquid after primary adsorption containing the remained palladium which is not adsorbed with the primary adsorbent, to adsorb the palladium in the liquid after the primary adsorption.
COPYRIGHT: (C)2011,JPO&INPIT
Yasushi Isshiki
Hideaki Sato
Hidemasa Nagai
| JP7310129A | ||||
| JP5319130A | ||||
| JP2002275555A | ||||
| JP2003241355A | ||||
| JP2004131745A | ||||
| JP2004502036A |
Noriyuki Tsujikawa
Next Patent: MASSSCULTURE METHOD OF SEED AND YOUNG PLANT OF BEGONIA GENUS