Is the Earth a giant quarry? - Part 2

[peffermillen]

continuation from Part 1

… let’s move on to the next metallurgical stage. The rock with a certain content of the required element has been mined. What to do with it next? Before sending it for remelting or extracting the required element in some other way, the ore must be enriched to increase the percentage of content. To do this, it is sent to

Comments

[peffermillen]

I have found the original article "Industrially developed civilization has existed on Earth for tens of thousands of years"

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