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Alex777 [14]
3 years ago
6

The process in which impurities are removed from a mineral​

Biology
1 answer:
11Alexandr11 [23.1K]3 years ago
7 0

Answer:

The removal of impurities is usually done chemically. For example, in the manufacturing of iron, calcium carbonate is added to the blast furnace to remove silicon dioxide from the iron ore. Zone refining is an economically important method for the purification of semiconductors.

Explanation:

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