The Regeneration Cycle of Cobalt Chemical Conversion Waste Liquid on Aluminum Alloys
Journal Title: Materials Science-Medžiagotyra - Year 2019, Vol 25, Issue 2
Abstract
In this research, the regeneration cycle of cobalt chemical conversion waste liquid, the effects of oxidizing agents on solution service life, and the influence of oxidizing agents on the treatment of waste liquid was studied by the electrochemical performance test. The scanning electron microscopy (SEM) and electrochemical properties analysis was used to study conversion coatings. It was determined that the best oxidizing agent for the cobalt chemical conversion waste liquid was 9 g/L KBrO3. Conversion coatings were thicker and had a higher density when the specific gravity of reclaimed liquid and stock solution was between 1:2 and 1:1.
Authors and Affiliations
Di MA, Zhenzhen XU, Xuejiao LV, Shubai LI, Jilei WANG, Zairan YU, Zebo TANG, Guohua ZHANG
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