Balancing Efficiency and Inherent Safety – A Case Study of Continuous Flow Technology in Pigment Red 57 Synthesis
Jointly developed by Tsinghua University & Shenzhen Tsinghua Research Institute, the modular microchannel continuous flow process revolutionizes Pigment Red 57 manufacturing:
✅ Diazotization finished within ~2 minutes
✅ Liquid holdup reduced from tonne scale to millilitres/litres
✅ Diazonium salt yield >99% | Pigment total yield >99% | Product purity ≥98%
✅ Plant footprint cut by over 75%
✅ Minimal waste liquid output, better resource efficiency
Sep 7,2026










