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When the densities of the ore particles and gangue particles are different, then the ore is concentrated by
- a)hand-picking
- b)electomagnetic
- c)froth-flotation process
- d)gravity separation method
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
When the densities of the ore particles and gangue particles are diffe...
Gravity separation process, also called Hydraulic washing is based on the difference between the densities of the ore particle and gangue. It is used for the concentration of denser ores from the water soluble and lighter impurities (gangue). This method concentrates the ore by passing it through an upward stream of water whereby all the lighter particles of gangue are separated from the heavier metal ore. Hence, the correct answer is option 'D'.
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When the densities of the ore particles and gangue particles are diffe...
Gravity Separation Method for Concentrating Ores
Ore concentration is the process where the mineral particles are separated from the gangue particles. This process involves several methods, including gravity separation, froth flotation process, electromagnetic separation, and hand-picking.
The gravity separation method is used when the densities of the ore particles and gangue particles are different. This method is based on the principle of differences in the specific gravity of the materials to be separated. The denser material settles at the bottom, while the lighter material floats on top.
Working Principle of Gravity Separation Method
The gravity separation method works based on the following steps:
1. Crushing and grinding the ore to obtain a fine powder.
2. Mixing the ore powder with water to form a suspension.
3. Adding reagents to the suspension to make the ore particles hydrophobic or hydrophilic.
4. Passing the suspension through a series of devices that apply a gravitational force, such as a sluice box, jig, or spiral chute.
5. Collecting the separated materials based on their specific gravity.
Advantages of Gravity Separation Method
The gravity separation method has several advantages over other methods of ore concentration, including:
1. Low cost: This method is relatively cheap compared to other methods, as it does not require expensive reagents or equipment.
2. High efficiency: The gravity separation method can achieve high yields and high purity of the separated materials.
3. Environmentally friendly: This method does not produce any harmful byproducts or waste materials, making it environmentally friendly.
4. Versatility: This method can be used to separate a wide range of materials, including minerals, metals, and plastics.
Conclusion
The gravity separation method is an effective and efficient method for concentrating ores when the densities of the ore particles and gangue particles are different. This method is cheap, efficient, and environmentally friendly, making it a popular choice for ore concentration.
Ore concentration is the process where the mineral particles are separated from the gangue particles. This process involves several methods, including gravity separation, froth flotation process, electromagnetic separation, and hand-picking.
The gravity separation method is used when the densities of the ore particles and gangue particles are different. This method is based on the principle of differences in the specific gravity of the materials to be separated. The denser material settles at the bottom, while the lighter material floats on top.
Working Principle of Gravity Separation Method
The gravity separation method works based on the following steps:
1. Crushing and grinding the ore to obtain a fine powder.
2. Mixing the ore powder with water to form a suspension.
3. Adding reagents to the suspension to make the ore particles hydrophobic or hydrophilic.
4. Passing the suspension through a series of devices that apply a gravitational force, such as a sluice box, jig, or spiral chute.
5. Collecting the separated materials based on their specific gravity.
Advantages of Gravity Separation Method
The gravity separation method has several advantages over other methods of ore concentration, including:
1. Low cost: This method is relatively cheap compared to other methods, as it does not require expensive reagents or equipment.
2. High efficiency: The gravity separation method can achieve high yields and high purity of the separated materials.
3. Environmentally friendly: This method does not produce any harmful byproducts or waste materials, making it environmentally friendly.
4. Versatility: This method can be used to separate a wide range of materials, including minerals, metals, and plastics.
Conclusion
The gravity separation method is an effective and efficient method for concentrating ores when the densities of the ore particles and gangue particles are different. This method is cheap, efficient, and environmentally friendly, making it a popular choice for ore concentration.
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When the densities of the ore particles and gangue particles are different, then the ore is concentrated bya)hand-pickingb)electomagneticc)froth-flotation processd)gravity separation methodCorrect answer is option 'D'. Can you explain this answer? for JEE 2025 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about When the densities of the ore particles and gangue particles are different, then the ore is concentrated bya)hand-pickingb)electomagneticc)froth-flotation processd)gravity separation methodCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for JEE 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for When the densities of the ore particles and gangue particles are different, then the ore is concentrated bya)hand-pickingb)electomagneticc)froth-flotation processd)gravity separation methodCorrect answer is option 'D'. Can you explain this answer?.
When the densities of the ore particles and gangue particles are different, then the ore is concentrated bya)hand-pickingb)electomagneticc)froth-flotation processd)gravity separation methodCorrect answer is option 'D'. Can you explain this answer? for JEE 2025 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about When the densities of the ore particles and gangue particles are different, then the ore is concentrated bya)hand-pickingb)electomagneticc)froth-flotation processd)gravity separation methodCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for JEE 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for When the densities of the ore particles and gangue particles are different, then the ore is concentrated bya)hand-pickingb)electomagneticc)froth-flotation processd)gravity separation methodCorrect answer is option 'D'. Can you explain this answer?.
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