Extractive Metallurgy Of Activated Minerals
by P. Balaz /
2011 / English / PDF
11.2 MB Download
Mechanical activation of solids is a part of mechanochemistry, the
science with a sound theoretical foundation exhibiting a wide range
of potential application. Mechanical activation itself is an
innovative procedure where an improvement in technological
processes can be attained via a combination of new surface area and
defects formation in minerals. Mechanical activation is of
exceptional importance in extractive metallurgy and mineral
processing and this area forms the topic of this book and is the
result of more than twenty years of research and graduate teaching
in the field. In pyrometallurgy, the mechanical activation of
minerals makes it possible to reduce their decomposition
temperatures or causes such a degree of disordering that the
thermal activation may be omitted entirely. The potential
mitigation of environmental pollutants is becoming increasingly
important in this context. The lowering of reaction temperatures,
the increase of the rate and amount of solubility, preparation of
water soluble compounds, the necessity for simpler and less
expensive reactors and shorter reaction times are some of the
advantages of mechanical activation in hydrometallurgy. The
environmental aspects of these processes are particularly
attractive. Several industrial processes are examined and their
flowsheets are presented as succesful of activation. In these
processes, the introduction of a mechanical activation step into
the technological cycle significantly modifies the subsequent
steps. The book is designed for researchers, teachers, operators
and students in the areas of extractive metallurgy, mineral
processing, mineralogy, solid state chemistry and materials
science. It will encourage newcomers to the mechanochemistry to do
useful research and discover novel applications in this field.
Mechanical activation of solids is a part of mechanochemistry, the
science with a sound theoretical foundation exhibiting a wide range
of potential application. Mechanical activation itself is an
innovative procedure where an improvement in technological
processes can be attained via a combination of new surface area and
defects formation in minerals. Mechanical activation is of
exceptional importance in extractive metallurgy and mineral
processing and this area forms the topic of this book and is the
result of more than twenty years of research and graduate teaching
in the field. In pyrometallurgy, the mechanical activation of
minerals makes it possible to reduce their decomposition
temperatures or causes such a degree of disordering that the
thermal activation may be omitted entirely. The potential
mitigation of environmental pollutants is becoming increasingly
important in this context. The lowering of reaction temperatures,
the increase of the rate and amount of solubility, preparation of
water soluble compounds, the necessity for simpler and less
expensive reactors and shorter reaction times are some of the
advantages of mechanical activation in hydrometallurgy. The
environmental aspects of these processes are particularly
attractive. Several industrial processes are examined and their
flowsheets are presented as succesful of activation. In these
processes, the introduction of a mechanical activation step into
the technological cycle significantly modifies the subsequent
steps. The book is designed for researchers, teachers, operators
and students in the areas of extractive metallurgy, mineral
processing, mineralogy, solid state chemistry and materials
science. It will encourage newcomers to the mechanochemistry to do
useful research and discover novel applications in this field.