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    • 7. 发明专利
    • Method for removing arsenic from solution
    • 从解决方案中去除砷的方法
    • JP2005000747A
    • 2005-01-06
    • JP2003164746
    • 2003-06-10
    • Chubu Kiresuto KkKiresuto KkMaezawa Ind Incキレスト株式会社中部キレスト株式会社前澤工業株式会社
    • CHO AKIRAMIHARA MASATAKENANBU NOBUYOSHI
    • C02F1/28C02F1/42C02F1/62
    • PROBLEM TO BE SOLVED: To provide an arsenic removal method which can efficiently remove dissolved arsenic from a solution, facilitates treatment of an arsenic-containing product after the removal, and has an advantage on running cost.
      SOLUTION: The arsenic removal method comprises the adsorption process of bringing an arsenic-containing solution into contact with a chelating material to adsorb the arsenic in the solution on the chelating material, the elution process of bringing the chelating material on which the arsenic is adsorbed in the adsorption process to elute the arsenic into the eluate, the reaction process of adding a sulfur compound to the eluate in which the arsenic is dissolved in the elution process and reacting the arsenic with sulfur to convert the arsenic into a solid sulfide, and the separation process of separating the solid sulfide formed in the reaction process from the eluate.
      COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:为了提供可以有效地从溶液中除去溶解的砷的砷去除方法,便于除去后的含砷产品的处理,并且具有运行成本的优点。 解决方案:除砷方法包括使含砷溶液与螯合材料接触以将溶液中的砷吸附在螯合材料上的吸附过程,使其上含有砷的螯合材料的洗脱过程 被吸附在吸附过程中,将砷洗脱到洗脱液中,反应过程是在洗脱过程中将砷化合物溶解在洗脱液中,并使砷与硫反应,将砷转化为固体硫化物, 以及将在反应过程中形成的固体硫化物与洗脱液分离的分离过程。 版权所有(C)2005,JPO&NCIPI