Contents : Hydrometallurgical Processing of Manganese Ores: A Review ,A Review on Alternative Gold Recovery Re-agents to Cyanide ,Direct Aqueous Mineral Carbonation of Waste Slate Using Ammonium Salt Solutions ,Palladium(II) Recovery from Hydrochloric Acid Solutions by N,N′-Dimethyl-N,N′-Dibutylthiodiglycolamide ,Hydrometallurgical Processing of Brazilian Iron Ore Tailings for the Synthesis of Pigments ,Effect of Polymer Addition on the Structure and Hydrogen Evolution Reaction Property of Nanoflower-Like Molybdenum Disulfide ,The Effects of Firing Temperatures on the Performance of Insulating Firebricks Containing Different Proportions of Alumina and Sawdust ,Preparation of Potassium Ferrate from Spent Steel Pickling Liquid , Nickel Extraction from Olivine: Effect of Carbonation Pre-Treatment , Hydrometallurgical Recovery of Gold from Mining Wastes ,Removal of Zn from Contaminated Sediment by FeCl3 in HCl Solution , Decontamination of Uranium-Contaminated Soil Sand Using Supercritical CO2 with a TBP–HNO3 Complex ,Extraction of Valuable Elements from Red Mud with a Focus on Using Liquid Media—A Review .