Principles of Metallurgy Quiz 3 - 6

This is the production of metals from primary and secondary metallurgical sources wherein some of the chemical reactions are carried out in aqueous solutions at ambient temperature.

• Electrometallurgy

• Hydrometallurgy

• Pyrometallurgy

• Chemistry

This step in hydrometallurgy allows conversion of valuable minerals into its soluble forms.

• Mineral Beneficiation

• Sintering

• Electrowinning

• Roasting

During this step in hydrometallurgy, the valuable metal is dissolved in the liquid solution.

• solid-liquid separation

• leaching

• roasting

• metal recovery

Which of the following methods is used in the recovery of metal/mineral from enriched pregnant solutions?

• Electrorefining

• Electrowinning

• Precipitation

• Filtration

This is the product of solid/liquid separation in hydrometallurgy.

• enriched pregnant solution

• pregnant suspension

• lixiviant

• pregnant solution

This is used in the enrichment of pregnant solutions in hydrometallurgy.

• Activated Carbon

• Barren Solution

• Precipitating Agents

• More lixiviant

Which of the following is/are the output/s of metal recovery process in hydrometallurgy?

• Valuable Metal

• Barren Solution

• Precipitating Agent

• All of the choices

Which of the following metallurgical processes is used in extracting copper from low grade copper ores?

• Pyrometallurgy

• Hydrometallurgy

• Electrometallurgy

• All of the choices

This type of leaching method is applicable for deeply seated high grade ores.

• Dump Leaching

• In-situ Leaching

• Heap Leaching

• Percolation Leaching

Which of the following is/are considered in choosing a leaching solvent?

• Readily available

• Corrosive to construction materials

• Dissolves selected metals only

• None among the choices