Flotation performance and adsorption mechanism of MALACHITE (cas 1319-53-5) with tert-butylsalicylaldoxime

Add time:08/17/2019    Source:sciencedirect.com

In this research, the flotation performance and adsorption mechanism of tert-butylsalicylaldoxime (TBSA) to MALACHITE (cas 1319-53-5) were studied by micro-flotation, contact angle, zeta potential, FTIR and XPS analysis. The result of micro-flotation tests indicated TBSA yielded high malachite recovery and satisfied selectivity against calcite or silica at pH 9.0–10.5. The contact angle results inferred that the hydrophobicity of malachite surfaces was improved after TBSA modification. The results of zeta potential suggested that TBSA might chemisorb on malachite surfaces. XPS and IR spectrum analysis confirmed that the O atoms in CNOH group and benzene ring fixed with Cu species on malachite surfaces through COCu, NOCu and d-pπ bond respectively.

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