The effect of aluminum ions on the flotation separation of pentlandite from lizardite (cas 12161-84-1)

Add time:07/31/2019    Source:sciencedirect.com

The role of aluminum ions on the flotation of pentlandite depressed by lizardite has been studied by flotation tests, adsorption tests, zeta potential measurements, solution chemistry calculation and particle size distribution test. The results show that the finer the lizardite slime is, the lower the pentlandite recovery will be at the routinely performed pH 8.5. The addition of aluminum ions prevents the detrimental effect of lizardite on pentlandite flotation. Good floatability of pentlandite was obtained around pH 8.5. Precipitation of the hydrolyzed species of aluminum ions occurred in this pH region, these species absorb on lizardite surface by special interaction and promote the coagulation of lizardite slimes, and therefore hetero-coagulation between lizardite and pentlandite can be broken.

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