In-situ Measurement of Primary Particle Sizes during Carbon Black Production

During the production of carbon black monitoring of primary particle size plays an important role since this parameter determines product properties and is specified accordingly. For process control fast information about this size is absolutely necessary. In the work presented here it was investigated whether time‐resolved laser‐induced incandescence is suitable for on‐line measurement of primary particle sizes of carbon black during the production process. The results obtained experimentally in industrial production and test reactors were compared with values for the specific surface area from laboratory analyses of sampled material.