Chemistry of Metal Solvent Extraction

摘要: Publisher Summary The chapter gives an overview of the chemistry metal solvent extraction; it provides factors underlying strength extractant interactions, their influence for different metals and extracting reagents, other parameters complexation that are briefly reviewed discussed. Solvent extraction is important technology in hydrometallurgical industry, analytical separations, liquid waste treatment. Metal ions, cations, anions extracted from aqueous phase into organic through reversible chemical reactions, forming organic-soluble neutral complexes. Extractant usually has very low solubility phase, but interacts with ions obtains high complex. So, described by a heterogeneous reaction on either side interface to final equilibrium concentrations product. In addition, solutes compounds (termed as extractants, or reagents), dissolved (diluent), accompanied distribution product complexes between two immiscible phases. extent any solute–ligand system defined constant, which termed stability formation constant metal–ligand interaction. Furthermore, explains anion exchangers many equations.