Portal de Periódicos da CAPES

Volume changes and distribution of HCl and H2O in the tri-n-butyl phosphate-H2O-HCl liquid-liquid system: A reversed micellar phenomenological model

1990; Elsevier BV; Volume: 50; Linguagem: Inglês

10.1016/0166-6622(90)80277-b

1873-4340

K. Osseo‐Asare,

Petroleum Processing and Analysis

Coordination in both the inner and outer spheres of metal ions has a major influence on the strength and selectivity of reagents used in extractive metallurgy. This is best exemplified in hydrometallurgical processes and this chapter describes the mechanisms which are involved in the transport of metal cations, metalate anions and metal salts to concentrate and separate targeted metals in commercial processes. Complex formation is also important in leaching, the first step in hydrometallurgy, and mineral concentration by froth flotation prior to smelting. In almost every case, secondary bonding and supramolecular chemistry contribute to defining efficiency of processes.