Depressant D451 is a very effective and important flotation depressant. The depressant used in the flotation of copper-molybdenum ore for copper minerals and pyrites has a significant inhibitory effect on copper, sulfur and other minerals, and can effectively replace sodium sulfide and sodium hydrosulfide.

In the separation of copper and lead, D451, as a non-toxic, small molecule depressant, has a good inhibitory effect on chalcopyrite, and can be used in the separation process of copper-lead mixed concentrate to realize the separation of copper and lead.

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