Abstract: The main component in the solid waste electrolytic manganese anode slag is manganese dioxide，which has a large specific surface area and a good adsorption effect. In order to study the influence of electrolytic manganese anode slag on the removal of molybdenum in manganese sulfate solution， an electrolytic manganese anode slag in Tongren，Guizhou Province was used as an adsorbent to investigate the effects of pH， electrolytic manganese anode slag addition， reaction time and reaction temperature on molybdenum removal in manganese sulfate. The results showed that the most suitable conditions for removing molybdenum is pH of 3， electrolytic manganese anode slag addition amount of 2.0 g， reaction time of 30 min， reaction temperature of 60 ℃， in which the removal rate of molybdenum is 99.16%， and the residual amount of molybdenum in the solution is 0.27 mg/L， which meets the first-class requirements of Manganese sulfate for batteries （HG/T 4823—2015）. The use of electrolytic manganese anode slag to reduce the content of molybdenum in the manganese sulfate solution provides an effective idea for the large-scale use of solid waste of electrolytic manganese anode slag， which improves the economic benefits of the enterprise while protecting the ecological environment.

Key words: electrolytic manganese anode slag, manganese sulfate, removal of molybdenum, single factors tests