Sustainable recycling solutions for supply-critical technology metals - focus: indium and gallium (INGA)


Development of a sustainable recycling process for technology metals from electronic scrap - focus: indium and gallium.
The research aims at the following specific objectives:

  1. Development of an electrochemical recycling process for metals (focus of IARS).
  2. Development of a melt flow process (focus of IIT).
  3. Evaluation of the sustainability of the project (focus of IARS).

Key issues:

  • Development of innovative and cost-effective recycling technologies for WEEE recycling and their profitable implementation on a larger scale.
  • Use of environmentally friendly chemicals and lower energy consumption.
  • Analysis of environmental and economic sustainability with Life Cycle Assessment (LCA) and Material Flow Cost Analysis (MFCA).


The project aims to develop an innovative, cost-effective and profitable recycling technology for WEEE recycling and technology metals recovery (focus: indium and gallium) from an industrial perspective. The project will also investigate and highlight the potential of the electrochemical process in the field of recycling. The aim is to achieve maximum sustainability in recycling by applying green chemistry concepts. This means the use of environmentally friendly chemicals and low energy consumption. Conventional recycling processes are energy-intensive and highly polluting.


  • Prof. Dr. Beck (Director of IARS)
  • Prof. Dr. Michael Hartmann (Academic Director of Berlin School of Technology)
  • Prof. Dr. Mathias Wickleder (Scientific Director of IARS and Chair of Solid State and Coordination Chemistry and Executive Director of the Institute of Inorganic Chemistry, Universität zu Köln)