MR 274 Pyrometallurgy Practice Flashcards

A set of vocabulary flashcards covering key pyrometallurgical concepts including reaction modeling, furnace refractories, heating technologies, thermodynamics, and material preparation.

Shrinking Core Model

A model used to explain how solid particles react with gases during roasting and other processes, where the reaction proceeds through steps like diffusion and surface reaction as the core diminishes.

Refractory Materials

High-temperature materials used in furnace design that provide thermal resistance and chemical compatibility in extreme working environments, such as those reaching $1600^\circ\text{C}$.

Acidic Slag

A type of metallurgical waste that requires the selection of chemically compatible refractory materials to prevent premature furnace lining degradation.

Microwave Heating

An energy-efficient metallurgical heating method that generates heat volumetrically and internally within materials, as opposed to surface-based traditional methods.

Convection Heating

A traditional heating method where heat is transferred and distributed from the surroundings to the surface of the material, unlike the internal mechanism of microwaves.

Ellingham Diagram

A graphical tool used in pyrometallurgy to analyze the thermodynamics of metal oxide reduction and the temperature-dependent stability of compounds.

$CO/CO_2$ Line

A reference line on an Ellingham diagram used to interpret the gas composition and thermodynamic requirements for reduction reactions at specific temperatures.

Agglomeration

A metallurgical method used to treat fine, dust-prone ore concentrates by binding particles together to improve handling, transport, and furnace usability.

Binder Type

A substance added during the agglomeration process that, along with particle size distribution, influences the final quality and strength of the treated ore product.