Researchers from the CC FLOW Consortium in Graz, Austria, have developed a 3D printed stainless steel customized flow reactor that converts environmentally harmful PTFE (Teflon) and waste products made from harmful greenhouse gases into synthetic Substance. It contributes to reducing wastage and contamination in the PTFE manufacturing process.
The flow reactor is fabricated from stainless steel 3D printed by SLM technology. It consists of a number of Z-shaped cells into which nBuLi (as a base material), benzotrifluoride (as an additive) and quench solution can be inserted. Reactor bending and folding channel structures are specifically designed for "fast difluoromethylation" between nBuLi and trifluoromethane. In fact, convection mixing is enhanced by "flowing stretch and fold". In the test, the 3D printed stainless steel reactor produced a "excellent purity" synthetic material at a temperature of 65 ℃ in less than two minutes of reaction time.