Effect of flocculation behavior on the flotation of synthetic apatitedolomite mixtures based on FBRM and PVM

• Autorzy: He Guixu , Chen Aoao , Zhao Lina , Zhang Qin , Li Wubin , Xie Jun , Wang Jieliang

Identyfikatory

DOI

10.37190/ppmp/202595

• Języki publikacji: EN

Abstrakty

EN

This study investigates the influence of various factors on shear flocculation in the apatitedolomite mixed ore flotation system. The Box-Behnken response surface methodology is employed to evaluate the interactions of these factors on flocculation behavior. Additionally, the Focused Beam Reflectance Measurement (FBRM) and Particle Vision Measurement (PVM) techniques are applied to investigate the mechanisms by which these factors affect shear flocculation. The results show that sodium oleate (NaOL) concentration, pH, and shear rate significantly influence the size of the flocculated particles. Notably, the interaction effect between NaOL concentration and pH is particularly pronounced. FBRM and PVM analysis reveals that pH and NaOL concentration play dominant roles in controlling particle flocculation, while H3PO4 has a relatively minor impact on agglomerate morphology and size. At low shear rates, the flocs are larger and more uniformly distributed, resulting in a more stable process. In contrast, although high shear rates enhance initial flocculation efficiency, they reducefloc size. Furthermore, the modified Smoluchowski model is applied to evaluate the impact of different factors on flocculation kinetics. The findings suggest that the effects of these factors vary across different stages of flocculation. The combined influence of NaOL concentration, pH, and shear rate is crucial in determining the stability of the flocs, with these three factors being key determinants of floc morphology and stability.

Słowa kluczowe

EN

FBRM; apatite; dolomite; response surface methodology; flocculation kinetics; flotation

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Physicochemical Problems of Mineral Processing
• Rocznik: 2025
• Tom: Vol. 61, iss. 1
• Strony: art. no. 202595
• Opis fizyczny: Bibliogr. 59 poz., rys., tab., wykr.

Twórcy

autor

He Guixu

• Mining College, Guizhou University, Guiyang 550025, China

autor

Chen Aoao

• Mining College, Guizhou University, Guiyang 550025, China

autor

Zhao Lina

• Mining College, Guizhou University, Guiyang 550025, China

autor

Zhang Qin

• Guizhou Academy of Sciences, Guiyang 550001, China

autor

Li Wubin

• Guizhou Academy of Sciences, Guiyang 550001, China

autor

Xie Jun

• Guizhou Academy of Sciences, Guiyang 550001, China
• Department of Materials Science and Engineering, Anhui University of Science and Technology, Huainan 232001, China

autor

Wang Jieliang

• Guizhou Academy of Sciences, Guiyang 550001, China
• School of Mining and Coal Engineering, Inner Mongolia University of Science and Technology, Baotou 014010, China

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