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4 Sep 2015 , A young miner extracts coltan from a valley in North Kivu, Democratic , The refining process mixes ore from the conflict zones of DRC with supplies , and Nintendo, as well as in medical implants and laboratory equipment...
When refining liquids or solids, pumps are a major part of the equation Whether using centrifugal pumps for cooling or gear pumps for the transfer of distilled....
Coltan is a metallic ore from which the very similar elements niobium, also known as , Furthermore, the mining process poses a direct threat to the environment via the , As a result, the Chinese coltan refining industry has contributed to the , in scale; in 2009, Canada produced less than 4% of the world's coltan supply...
24 Mar 2016 , Describes the Miller Chlorination Process used in gold refining in all its steps and chemistry The reactor and , 1 Equipment and Suppli...
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