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Questions and Answers
What is the main principle behind the method described in the first paragraph?
What is the main principle behind the method described in the first paragraph?
Which part of the machine in the magnetic separation method is responsible for attracting the magnetic ingredients of the ore?
Which part of the machine in the magnetic separation method is responsible for attracting the magnetic ingredients of the ore?
How are gangue particles separated in the method described in the first paragraph?
How are gangue particles separated in the method described in the first paragraph?
What material is the conveyor belt made of in the magnetic separation method?
What material is the conveyor belt made of in the magnetic separation method?
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Which part of the machine in the magnetic separation method is responsible for transporting nonmagnetic particles further along the belt?
Which part of the machine in the magnetic separation method is responsible for transporting nonmagnetic particles further along the belt?
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What happens to nonmagnetic particles in the magnetic separation method?
What happens to nonmagnetic particles in the magnetic separation method?
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What is the froth floatation method based on?
What is the froth floatation method based on?
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Why do metal sulphides get mainly wetted with oil in froth floatation?
Why do metal sulphides get mainly wetted with oil in froth floatation?
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What property causes gangue particles to get wetted with water in the froth floatation process?
What property causes gangue particles to get wetted with water in the froth floatation process?
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How are magnetic and nonmagnetic ingredients separated in the magnetic separation process?
How are magnetic and nonmagnetic ingredients separated in the magnetic separation process?
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Which ore is used as an example for magnetic separation in the text?
Which ore is used as an example for magnetic separation in the text?
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What method is used to concentrate certain ores according to the text?
What method is used to concentrate certain ores according to the text?
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Study Notes
Magnetic Separation Method
- Utilizes magnetic forces to separate magnetic components from nonmagnetic ones in ores.
- A part of the machine known as the magnetic separator attracts magnetic ingredients from the ore, ensuring effective separation.
- Gangue particles, which are unwanted materials, are separated through the action of the magnetic field, which repels them away from magnetic ores.
Conveyor Belt in Magnetic Separation
- The conveyor belt is typically made of rubber or similar non-magnetic materials, allowing for smooth transportation during the separation process.
- Nonmagnetic particles are carried along the belt as it moves, ensuring their progression away from the magnetic components.
Behavior of Nonmagnetic Particles
- Nonmagnetic particles continue along the conveyor belt and are collected for further processing, effectively eliminating them from the primary concentrated ore.
Froth Flotation Method
- Froth flotation is based on the differential wettability of ore particles where certain particles attach to a froth layer while others sink.
- Metal sulfides in the froth flotation process tend to be predominantly wetted with oil due to their hydrophobic nature, allowing for efficient separation.
- Gangue particles are wetted with water due to their hydrophilic properties, which keeps them submerged and separated from the desired minerals.
Separation Processes in Magnetic and Froth Flotation
- Magnetic separation employs a magnetic field to segregate magnetic from nonmagnetic ingredients, facilitating efficient mineral extraction.
- An example of an ore used in magnetic separation includes magnetite due to its distinctive magnetic properties.
- The method used to concentrate certain ores discussed involves both magnetic separation and froth flotation, optimizing the extraction of valuable minerals.
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Description
Learn about the gravity separation method used in metallurgy to separate ore from gangue based on their different densities. Understand the process of releasing finely ground ore in a tank and using a forceful jet of water to separate the particles.
