Mineral Beneficiation Operations
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Questions and Answers

What is the primary objective of Mineral Beneficiation?

  • To increase the metal content in ore
  • To reduce the cost of metallurgical processes
  • To enhance the quality of gangue minerals
  • To eliminate unwanted chemical species or particles of unsuitable size or structure (correct)

    • What is the primary benefit of carrying out Mineral Beneficiation at the mine site?

  • Reducing the bulk of the ore to be transported (correct)
  • Increasing the reserves of high-grade ore
  • Reducing the cost of smelting
  • Reducing the loss of metal in slag

    • Why is Mineral Beneficiation becoming increasingly important?

  • Due to the increase in the demand for metal extraction
  • Due to the decrease in the cost of metallurgical processes
  • Due to the depletion of high-grade ore reserves (correct)
  • Due to the increase in the quality of gangue minerals

    • What is the outcome of switching from Selective mining to Bulk mining?

    <p>Increase in the need for Mineral Beneficiation</p> Signup and view all the answers

    What is the advantage of Mineral Beneficiation compared to metallurgical processes?

    <p>It is less expensive</p> Signup and view all the answers

    What is the result of Mineral Beneficiation on lean ores?

    <p>They become technically suitable for extraction of metal</p> Signup and view all the answers

    What is the primary purpose of Liberation in mineral beneficiation?

    <p>To detach or free dissimilar particles from each other</p> Signup and view all the answers

    Which of the following is NOT a separation operation in mineral beneficiation?

    <p>Pneumatic transport</p> Signup and view all the answers

    What is the term for the actual separation of liberated dissimilar particles?

    <p>Separation</p> Signup and view all the answers

    What is the purpose of supporting operations in mineral beneficiation?

    <p>To enable the existence of a plant</p> Signup and view all the answers

    What is the term for the process of upgrading the quality of an ore?

    <p>Ore upgradation</p> Signup and view all the answers

    What is the term for the removal of unwanted particles from the valuable minerals?

    <p>Gangue removal</p> Signup and view all the answers

    What is meant by the liberation of mineral A in an ore?

    <p>The detachment of all grains of mineral A from minerals B and C</p> Signup and view all the answers

    What happens when the physical properties of adjacent minerals are sufficiently dissimilar?

    <p>Fracture takes place at the boundary</p> Signup and view all the answers

    What is the result of comminution in terms of mineral liberation?

    <p>The true freeing or detachment of minerals</p> Signup and view all the answers

    What is the condition where the reduced ore consists of free particles of valuable minerals and free and/or locked particles of gangue minerals?

    <p>Intergranular liberation</p> Signup and view all the answers

    Why is liberation of mineral A not necessarily accompanied by the liberation of minerals B and C?

    <p>Because mineral A has distinct physical properties</p> Signup and view all the answers

    What is the relationship between particle size, liberation size, and grain size in intergranular liberation?

    <p>Particle size = liberation size = grain size</p> Signup and view all the answers

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