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Question
In general, the first step performed in extraction and isolation of metals from ores is:
In general, the first step performed in extraction and isolation of metals from ores is:
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Solution
The correct option is B Crushing and Grinding
The steps performed in extraction and isolation of metals from ores are:
1. Crushing and grinding: The ore is first crushed by jaw crushers and then ground to powder in ball mills
and stamp mills.
2. Concentration of Ore: the concentration of ore is the method of separating ore from the gangue, as the gangue or matrix particles are the valueless substances that are of no use. The ore can be concentrated or separated by both physical and chemical means. The ore obtained after the completion of the ore concentration is called concentrate.
3. Isolation of metal.
4. Purification of metal.
The steps performed in extraction and isolation of metals from ores are:
1. Crushing and grinding: The ore is first crushed by jaw crushers and then ground to powder in ball mills
and stamp mills.
2. Concentration of Ore: the concentration of ore is the method of separating ore from the gangue, as the gangue or matrix particles are the valueless substances that are of no use. The ore can be concentrated or separated by both physical and chemical means. The ore obtained after the completion of the ore concentration is called concentrate.
3. Isolation of metal.
4. Purification of metal.
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