The alternatives considered for accelerating the concentrate leach kinetics were addition of air or oxygen, and Degussa Corporation’s peroxide-assisted leaching (PAL) process. Air addition was
The chemical alteration of water by acid mine drainage begins with the exposure to the atmosphere of pyrite associated with coal during the mining process.
Polymeric flocculants are widely used to enhance particle sedimentation in the application of thickening processes to slurry dewatering. When properly applied, these flocculants promote the
Many types of mathematical models are used in comminution and mineral processing. These models can generally be classified into one or more of the four
The calculation of the liberation spectrum in the product from a continuously operating ball mill is both important and difficult The liberation spectrum depends on
Desulfurization of coal before combustion is becoming important for the effective utilization of this major energy resource without polluting the environment. Because most sulfur-bearing and
Distributed Component Comminution Model The general form of the comprehensive distributed component comminution model has been described as follows d/dt(m(t)) = – [I – B]S
Minproc has developed a process concept of preconcentration of zinc and tin to moderate grade preconcentrates at high recovery, followed by pyrometallurgical upgrading (filming) of
In ball mills, the grinding of ore bodies takes place due to the impact and attrition of the colliding balls. For efficient grinding of hard
In the chemical and hydrometallurgical industries, solvent extraction is a well established and widely used extractive metallurgical process by which desired metals are loaded onto