Related Experiment Video
Updated: Jun 3, 2025

Two-way Valorization of Blast Furnace Slag: Synthesis of Precipitated Calcium Carbonate and Zeolitic Heavy Metal Adsorbent
Published on: February 21, 2017
Manganese recovery from electric arc furnace dust bioleachate: Evaluation of different precipitation agents
Seyedeh Neda Mousavi1, Seyyed Mohammad Mousavi2, Francesca Beolchini3
1Biotechnology Group, Chemical Engineering Department, Tarbiat Modares University, Tehran, Iran.
Abstract:
This study optimized a one-step precipitation process for manganese recovery from a complex medium-bioleachate obtained from electric arc furnace dust (EAFD). The effects of pH variations and different precipitation agents, including acetone, ethanol, oxalic acid, and ammonium hydroxide, were investigated for manganese recovery. While acetone and ethanol facilitated precipitation, they did not lead to the formation of a specific manganese precipitate. The presence of other metals in the precipitate further reduced the purity of manganese precipitation. Oxalic acid proved ineffective in forming manganese precipitate from the citrate-based bioleachate. However, ammonium hydroxide demonstrated superior performance at pH 9.3 due to its lower affinity for manganese than other metals. Ammonium hydroxide precipitated 60% of manganese with 62% purity in a single step. Species diagrams simulated by MEDUSA software predicted MnHPO4 formation in the precipitate. Advanced analytical techniques (ICP, XRF, FTIR, FE-SEM, and EDX-mapping) were employed for comprehensive precipitate analysis.
More Related Videos
10:31Detection and Recovery of Palladium, Gold and Cobalt Metals from the Urban Mine Using Novel Sensors/Adsorbents Designated with Nanoscale Wagon-wheel-shaped Pores
Published on: December 6, 2015
10:45Stable Aqueous Suspensions of Manganese Ferrite Clusters with Tunable Nanoscale Dimension and Composition
Published on: February 5, 2022
Related Concept Videos
Extraction: Advanced Methods
Steel Manufacturing
During this smelting process, limestone plays a crucial role by forming slag. Slag captures impurities within the molten iron, such...
Sample Preparation for Analysis: Advanced Techniques
Acid digestion with strong acids is commonly used to dissolve inorganic materials that are insoluble (do not dissolve) in water. This method can be useful for...
Electrodeposition
Electrodeposition can...