Corrosion study for the acidic organosolv processes Acetosolv, Formacell and Milox

2003 
For the three acidic organosolv pulping processes Acetosolv, Formacell and Milox the issue of material resistance was studied. For this purpose four different alloys were tested under laboratory pulping conditions. None of the Investigated materials could withstand the Acetosolv process (which showed the highest corrosion intensity), whereas Hasteloy C proved to be a suitable material for Formacell and Milox pulping. Under Milox conditions, both the latter material and X5CrNiMoTi17-12-2 fulfilled the required specifications.
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