公开(公告)号：US20120318681A1

公开(公告)日：2012-12-20

申请号：US13598177

申请日：2012-08-29

申请人： Shengen ZHANG ,  Bin LI ,  Dean PAN ,  Jianjun TIAN ,  Bo LIU

发明人： Shengen ZHANG ,  Bin LI ,  Dean PAN ,  Jianjun TIAN ,  Bo LIU

IPC分类号： C25F7/00

CPC分类号： C22B11/046 ,  C22B7/00 ,  C22B15/0056 ,  C25C1/12 ,  Y02P10/214 ,  Y02P10/22 ,  Y02P10/228 ,  Y02P10/236

摘要： The invention related to the recycling field of waste printed circuit boards (WPCB), and especially involved a complete non-cyanogens wet process for green recycling of WPCB, which belonged to the field of recycle economy. In the invention, the process included that WPCB were broken by the jaw crusher, and then mixed copper powders and nonmetallic powders were separated by the method of air classification, the mixed copper powders were smelted and casted to get copper anode plates, the copper was purified by electrolytion, the valuable metals (such as copper, gold, silver, platinum and palladium, lead and tin) were recycled from the copper anode slime, and the waste water was recycled. The recovery ratio of all-metal was above 98%. The purity of the cathode copper was up to 4N level. The ratio of de-coppering was above 96%. The recovery ratio of gold was above 98.

摘要翻译： 本发明涉及废旧印刷电路板（WPCB）的回收领域，特别涉及属于循环经济领域的WPCB绿色循环的完全非氰化物湿法。 在本发明中，该方法包括WPCB被颚式破碎机破碎，然后通过空气分级方法分离混合的铜粉和非金属粉末，将混合的铜粉熔炼并浇铸以获得铜阳极板，铜为 通过电解纯化，从铜阳极泥回收贵重金属（如铜，金，银，铂和钯，铅和锡），并回收废水。 全金属回收率98％以上。 阴极铜的纯度高达4N。 去铜率高于96％。 黄金回收率高于98。

公开(公告)号：US20130091987A1

公开(公告)日：2013-04-18

申请号：US13587450

申请日：2012-08-16

申请人： Shengen ZHANG ,  Bo LIU ,  Jianjun TIAN ,  Dean PAN ,  Bin LI

发明人： Shengen ZHANG ,  Bo LIU ,  Jianjun TIAN ,  Dean PAN ,  Bin LI

IPC分类号： B22F9/00

CPC分类号： B22F9/00 ,  B22F3/23 ,  B22F5/106 ,  B22F7/08 ,  B22F8/00 ,  Y02P10/24 ,  Y02W30/541

摘要： The invention provides a pollution-free reuse method for iron-based grinding waste, involving the technology of recycling economy, with special reference to the metallurgical industry, iron-based grinding waste green recycling technology. The present invention of the iron grinding waste recycling and reuse methods includes degreasing, heat treatment, sieving, matching, and obtains iron-based alloyed powders, which can be used in SHS lined steel pipe, powder metallurgy structural component, magnetic grinding, thermal spray. More than 95% iron-based alloyed powders can be recycled from wide source of iron-based grinding waste. The invention has the advantage of low cost, no secondary pollution and wide application.

摘要翻译： 本发明提供了铁粉磨废弃物的无污染再利用方法，涉及循环经济技术，特别涉及冶金工业，铁基研磨废弃物绿色回收技术。 本发明的铁粉回收再利用方法包括脱脂，热处理，筛分，匹配，得到铁基合金粉末，可用于SHS衬里钢管，粉末冶金结构件，磁磨，热喷涂 。 超过95％的铁基合金粉末可以从广泛的铁基研磨废料回收。 本发明具有成本低，无二次污染，应用广泛的优点。