Ore Enrichment's Primary Purpose
Ore enrichment is a critical step performed before the actual extraction of metals from their ores. The fundamental objective of this process is to increase the percentage of the valuable metal compound in the ore.
Key Goals of Ore Enrichment
- Gangue Removal: The primary aim is to separate the valuable ore minerals from unwanted rocky or earthy materials. These unwanted materials are collectively known as the gangue.
- Impurity Elimination: This process specifically targets the removal of materials like sand, silica, and other non-metallic, earthy impurities.
- Enhanced Efficiency: By concentrating the valuable minerals and removing the gangue, the subsequent steps involved in metal extraction become more efficient, cost-effective, and manageable.
Option 4 accurately states this primary reason: To eliminate earthy impurities such as sand and unwanted rock. This preparation step is vital for successful and economical metal recovery.
Important Questions from Metals and Properties
In general, resistivity of an alloy ______ its constituent metals.
In Stress & Strain diagram, stress is always represented on the ______.
What is the primary material used in the resistance wire of wire-wound resistors?
Which of the following statements about the resistivity of metals is INCORRECT?
Aluminium in its pure form is not used for engineering work because
