Invention Grant
US09328398B2 Method for recycling noble metal from electronic waste material and apparatus thereof 有权
从电子废料回收贵金属的方法及其设备

  • Patent Title: Method for recycling noble metal from electronic waste material and apparatus thereof
  • Patent Title (中): 从电子废料回收贵金属的方法及其设备
  • Application No.: US13823076
    Application Date: 2010-10-27
  • Publication No.: US09328398B2
    Publication Date: 2016-05-03
  • Inventor: Kaihua Xu
  • Applicant: Kaihua Xu
  • Applicant Address: CN Shenzhen
  • Assignee: GEM CO., LTD.
  • Current Assignee: GEM CO., LTD.
  • Current Assignee Address: CN Shenzhen
  • Agency: Shimokaji IP
  • Priority: CN201010506134 20101012
  • International Application: PCT/CN2010/078167 WO 20101027
  • International Announcement: WO2012/048474 WO 20120419
  • Main IPC: C22B4/04
  • IPC: C22B4/04 C22B4/08 C22B11/02
Method for recycling noble metal from electronic waste material and apparatus thereof
Abstract:
A method for recycling noble metals from electronic waste materials and apparatus thereof. The method comprises the following steps: mechanically breaking up the electronic waste materials; removing rubber and plastic materials by electrostatic separation; removing ferromagnetic metals by magnetic separation; removing residual rubber and plastic materials by microwave pyrolysis; removing low-melting-point metals by indirectly heating using microwave; separating the noble metals from one another in turn from low-melting-point metal to high-melting-point metal for recycle. The apparatus includes a microwave housing. A filtering screen is positioned on the inside wall of the housing horizontally, and vertically-arranged and open-ended heating pipes are positioned over the filtering screen. The method and apparatus can adequately recycle resources in the electronic waste materials.
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