SisAl Pilot

The project aims to demonstrate a patented novel industrial process to produce silicon (Si, a critical raw material), enabling a shift from today’s carbothermic Submerged Arc Furnace (SAF) process to a far more environmentally and economically sustainable alternative: an aluminothermic reduction of quartz in slag that utilizes secondary raw materials such as aluminium (Al) EoL scrap and dross, as replacements for carbon reductants used today.

SisAl Pilot represents a path-breaking approach, and a strong contribution to “circularity” through industrial symbiosis where the Al industry will act as both a raw material supplier and end user to the Si industry. Across sectors, SisAl Pilot will give substantial reductions in material yield losses, enhanced valorisation of waste- and by-product streams (SiO2 fines, Si skulls, dross, scrap etc), at a 3 X lower energy consumption and radically lower emissions of CO2 and harmful pollutants, at a considerably lower cost.

Objectives of SisAL Pilot project

The overall objective of SisAl Pilot is to scale up and demonstrate a new European technology at TRL 6-7, using different raw material mixes to produce silicon and silicon alloys, along with MGA and HPA, validating product quality, environmental impact and economic parameters to lay the ground for commercialisation.

Specific objectives:

Define suitable raw material characteristics, availability and mixes for the SisAl process to assure product quality

Pre-industrial scale production of commercial grade MG-Si, HP-Si/SoG-Si precursors, Al-Si alloys, MGA and HPA, in five different pilot locations ® Assessment of processes and products

Develop at least five European business case scenarios for project partner clusters

Verify environmental performance and HSE compliance of the SisAl process

Dissemination and communication to create additional European societal value

The SisAL Pilot consortium

  • Norges Teknisk-Naturvitenskapelige Universitet (coordinator)
  • SIMTEC EURL ST
  • MYTILINEOS HOLDINGS S.A
  • RWTH Aachen University (IME)
  • BNW-Energy AS
  • Befesa Aluminio SLU
  • Explotacion de Rocas striales y Minerales
  • National technical university of Athens
  • Hydro Aluminium AS
  • Consorcio Instituto Tecnolóxico de Matemática Industrial
  • Sintef Industry
  • Silbucam S.L.
  • FUNDICIONES REY, SL
  • Wacker Chemicals Norway
  • SiQAl UG
  • Dow Silicones Corporation
  • Helmholtz-Zentrum Dresden – Rossendorf e.V.
  • MINTEK
  • Silicor Materials Iceland ehf.
  • Elkem AS, Technology
  • CiaoTech Srl
  • Innovation Engineering Srl

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This project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 869268 This website reflects only the author’s view and that the European Commission is not responsible for any use that may be made of the information it contains.