Al-caustic starch coordination compounds: A new depressant for fine calcite

Article Engineering, Chemical

Novel insights into the role of colloidal calcium dioleate in the flotation of calcium minerals

Wenjuan Sun et al.

Summary: This study demonstrated the importance of calcium dioleate formed in oleic acid systems on the flotation of fluorite, calcite, and scheelite, as well as its impact on the adsorption mechanism on mineral surfaces. Calcium dioleate showed better flotation effect on fluorite and scheelite compared to calcite, and it enhanced the surface roughness of these minerals, thereby improving their flotation performance.

MINERALS ENGINEERING (2022)

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Article Chemistry, Physical

Hydrophobic behavior of fluorite surface in strongly alkaline solution and its application in flotation

Ruolin Wang et al.

Summary: Fluorite surfaces are naturally hydrophobic at high pH without the need for surfactants, aiding in selective flotation separation from calcite. Water molecules undergo significant changes in orientation and hydrogen bonding structure at the fluorite/water interface, with increased hydrophobicity observed at pH 13, which plays a crucial role in the flotation of fluorite.

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS (2021)

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Article Engineering, Chemical

Fluorite particles as a novel barite depressant in terms of surface transformation

Ruolin Wang et al.

Summary: The flotation separation of scheelite and barite is challenging due to their similar chemical properties, but an effective separation can be achieved through the dissolution and surface transformation of fluorite. Fluorite ions play a crucial role in the separation process, affecting the surface charge of barite significantly. Surface transformation is essential for successful flotation and offers a new strategy for separating salt minerals.

MINERALS ENGINEERING (2021)

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Article Engineering, Chemical