公开(公告)号：WO2017037625A1

公开(公告)日：2017-03-09

申请号：PCT/IB2016/055189

申请日：2016-08-31

Applicant: ATTERO RECYCLING PVT. LTD.

Inventor： GUPTA, Nitin ,  PRABAHARAN, G. ,  BARIK, Smruti Prakash ,  KUMAR, Bhuvnesh ,  PRASAD, Jageshwar

IPC: C22B7/00 ,  C22B3/00 ,  C22B15/00 ,  C22B25/06 ,  C22B26/20 ,  C22B34/12

CPC classification number: C22B11/046 ,  C22B7/007 ,  C22B15/0067 ,  C22B25/06 ,  C22B26/20 ,  C22B34/12 ,  Y02P10/214 ,  Y02P10/228 ,  Y02P10/234 ,  Y02P10/236

Abstract: The present invention relates to the recycling process of electronic waste resources to recover metals of value. More particularly, it relates to eco-friendly yet efficient hydrometallurgical processes to recover metal values from waste monolithic ceramic capacitors. In the proposed method, the source material such as mother boards having MLCC is pulverized using a ball mill to dislodge various components such as monolithic ceramic capacitors (MLCC) to form a powdery mixture of components. The mixture of components is then sieved. The MLCC powder of particular size range is then subjected to hydrometallurgical process. The process then transfers the precious metals into solution by leaching process followed by selective precipitation, purification, cementation and final recovery of metals.

Abstract translation: 本发明涉及电子废物资源回收价值回收过程。 更具体地说，它涉及环保的，有效的湿法冶金工艺，以从废石墨陶瓷电容器中回收金属的价值。 在所提出的方法中，使用球磨机将诸如具有MLCC的母板的源材料粉碎以去除诸如单片陶瓷电容器（MLCC）的各种组分以形成组分的粉末混合物。 然后将组分的混合物过筛。 然后对特定尺寸范围的MLCC粉末进行湿法冶金处理。 然后，该过程通过浸出过程将贵金属转移到溶液中，随后选择性沉淀，纯化，胶结和金属的最终回收。

公开(公告)号：WO2017046687A1

公开(公告)日：2017-03-23

申请号：PCT/IB2016/055417

申请日：2016-09-12

Applicant: ATTERO RECYCLING PVT. LTD.

Inventor： GUPTA, Nitin ,  PRABAHARAN, G. ,  KUMAR, Bhuvnesh ,  PRASAD, Jageshwar

IPC: C22B25/06

CPC classification number: C22B11/046 ,  C22B1/005 ,  C22B3/06 ,  Y02P10/214 ,  Y02P10/234

Abstract: The present invention relates to an improved process and method of recovering precious metal values from chips of waste PCBs. The invention resides in providing the possibility of reutilization of metals abundant in chips of waste PCBs. The method is specific to metal recovery from waste PCBs especially from mother boards of computers, laptops and other electronic equipments equipped with printed circuit boards. In an embodiment of the invention, the hydrometallurgical method is provided to separate out metal values from chips of waste PCBs. In this method, the source material is pulverized using a size reduction apparatus preferably a ball mill followed by sieving through specific mesh size that leads to separation of Metal impurities, polymeric matrix from precious metals and silicious matrix.

Abstract translation: 本发明涉及一种从废PCB芯片中回收贵金属价值的改进方法和方法。 本发明的目的在于提供废弃PCB片屑中丰富的金属的再利用的可能性。 该方法特别适用于废旧PCB，特别是电脑，笔记本电脑和配备印刷电路板的电子设备的母板上的金属回收。 在本发明的一个实施方案中，提供了湿法冶金方法以从废PCBs的芯片中分离金属值。 在该方法中，使用优选使用球磨机的尺寸减小装置将源材料粉碎，然后通过特定的筛网尺寸筛分，导致金属杂质，聚合物基质与贵金属和硅质基质的分离。

公开(公告)号：WO2017006209A1

公开(公告)日：2017-01-12

申请号：PCT/IB2016/053811

申请日：2016-06-27

Applicant: ATTERO RECYCLING PVT. LTD.

Inventor： GUPTA, Nitin ,  PRABAHARAN, G. ,  BARIK, Smruti Prakash ,  KUMAR, Bhuvnesh

IPC: H01M10/54

CPC classification number: H01M10/54 ,  C01D7/06 ,  C01D7/12 ,  C01G51/04 ,  C01P2004/60 ,  C01P2004/80 ,  C01P2006/80 ,  C22B1/005 ,  C22B7/006 ,  C22B26/12 ,  Y02P10/234 ,  Y02W30/84

Abstract: The present invention relates to an improved process and method of recovering metals of value from used Lithium Ion batteries. More particularly, the invention provides a method for recovering cobalt and lithium along with other metals of value wherein the method majorly includes physical processes for separation, in particular wet screening a slurry, limiting the use of chemicals for removing minor impurities. Majority of elements were separated by physical process instead of chemical process which gives the benefit of cost saving in chemical treatment of liquid and solid effluents. Chemicals are used to dissolve only minor impurities from electrolyte which lead to the process economically attractive. This makes the method of recovering metal values is environment friendly. The invention provides for a cost effective, economic and environmental friendly process for recovering metals of value.

Abstract translation: 本发明涉及一种改进的使用锂离子电池回收有价金属的方法和方法。 更具体地，本发明提供了一种用于回收钴和锂以及其它金属的方法，其中该方法主要包括用于分离的物理方法，特别是湿法筛选浆料，限制了用于除去少量杂质的化学品的使用。 大部分元素通过物理过程而不是化学过程分离，这给液体和固体废水的化学处理带来成本节约的好处。 化学品用于仅溶解电解质中的微量杂质，这导致该方法具有吸引力。 这使得回收金属值的方法是环保的。 本发明提供了用于回收有价值的金属的成本效益，经济和环境友好的方法。