New measurement and control method for an emission minimising and efficient process management for pickling of metallic surfaces

The results of online measurement of iron and acid content are to be used within the developed metal pickling concept for targeted adjustment of acid levels and to determine the time point of pickling bath medium disposal. The continuous monitoring of acid and metal concentrations will provide marked benefits to the industry. 

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Source: German National Library of Science and Technology Hannover (TIB)