Production control with on-line ICP spectrometry

The development and installation of an fully automatically working on-line ICP emissionspectrometer for analysing waste pickle liquor from sampling ov er sample preparation up to measuring and presentation of results is a furt her step in automation of analytical working programs, The system has been installed for process control in the frame of starting a special precleanin g equipment removing trace impurities from waste hydrochloric pickle liquor at Thyssen Krupp Stahl AG, The purificated waste pickle liquor is automati cally sampled and analysed, In the regeneration process a very pure iron ox ide is produced which is used as a high tech raw material for magnetic appl ications. The on-line ICP emissionspectrometer is established as a definite part in process control and quality securing producing HP thigh purity) ir on oxide and has proved successfully in praxis. A uniformly high quality of the HP iron oxide is secured.