公开(公告)号：US5451323A

公开(公告)日：1995-09-19

申请号：US219290

申请日：1994-03-28

申请人： Kenichiro Akao ,  Hajime Ogata ,  Toshihiro Kikuchi ,  Kazuo Mochizuki ,  Koji Yamato

发明人： Kenichiro Akao ,  Hajime Ogata ,  Toshihiro Kikuchi ,  Kazuo Mochizuki ,  Koji Yamato

IPC分类号： C25D21/22 ,  B01D15/04

CPC分类号： C25D21/22 ,  Y10S204/13

摘要： A method of recovering and reproducing a tinning liquid containing Fe ions and other detrimental cations by the steps of removing cations from the tinning liquid by passing the tinning liquid or a diluted liquid of the tinning liquid through a strong-acid cation exchange resin to obtain a recovered acid, thereafter reproducing the strong-acid cation exchange resin and desorbing adsorbed cations into a solution containing an acid by passing the acid through the exchange resin to which the cations have been adsorbed, precipitating and separating Sn ions in the form of a precipitate of an Sn compound from the solution into which the cations have been desorbed while maintaining Fe ions as ions in this solution, mixing and dissolving the precipitate of the Sn compound or a compound reduced from the same in the recovered acid to reproduce and reuse the mixture of the Sn compound and the recovered acid as a tinning liquid, and discharging the solution containing Fe ions out of the system of the tinning liquid.

摘要翻译： 一种通过以下步骤回收和再现含有Fe离子和其它有害阳离子的镀锡液的方法：通过使镀锡液中的镀锡液或稀释液通过强酸阳离子交换树脂，从而从镀锡液中除去阳离子，得到 回收酸，然后通过使酸通过阳离子吸附的交换树脂，沉淀并分离出沉淀形式的Sn离子，从而再生强酸阳离子交换树脂并将吸附的阳离子解吸到含有酸的溶液中 从溶液中除去阳离子的溶液中的Sn化合物，同时将Fe离子作为离子保持在该溶液中，将Sn化合物或从其回收的酸中还原的化合物的沉淀物混合并溶解以再生和再利用 Sn化合物和回收的酸作为镀锡液，并将含有Fe离子的溶液排出t系统 他镀锡液体。