公开(公告)号：US20100028198A1

公开(公告)日：2010-02-04

申请号：US11661001

申请日：2005-08-23

申请人： Cesimiro Paulino Fabian ,  Thomas William Lancaster ,  Natalie Lancaster

发明人： Cesimiro Paulino Fabian ,  Thomas William Lancaster ,  Natalie Lancaster

IPC分类号： C22C9/00 ,  C25D1/00

CPC分类号： C22B15/0084 ,  C22B3/0097 ,  C22B15/0069 ,  C25C1/12 ,  Y02P10/234 ,  Y02P10/236

摘要： A method of electrowinning or electrorefining copper from a copper electrolyte solution which contains chloride ions, the method comprising the steps of: (a) forming a polyacrylamide solution by dissolving polyacrylamide, having a molecular weight range of 5,000 to 20,000,000 Daltons, in an acidic medium and under conditions to form a polyacrylamide block copolymer having blocks of carboxyl groups dispersed along the polymer backbone; (b) introducing the polyacrylamide solution into an electrolytic cell containing the copper electrolyte solution at a polyacrylamide concentration of 0.01-10 mg/L; and (c) electroplating copper from the copper electrolyte solution to form a copper cathode.

摘要翻译： 一种从包含氯离子的铜电解液中电解或电解铜的方法，所述方法包括以下步骤：（a）通过将分子量范围为5,000至20,000,000道尔顿的聚丙烯酰胺溶解在酸性介质中形成聚丙烯酰胺溶液 并在条件下形成具有沿聚合物主链分散的羧基嵌段的聚丙烯酰胺嵌段共聚物; （b）以聚丙烯酰胺浓度为0.01〜10mg / L，将聚丙烯酰胺溶液引入含有铜电解质溶液的电解槽中; 和（c）从铜电解液中电镀铜以形成铜阴极。