Application of organic ellagic acid as a selective inhibitor of calcite in scheelite flotation

• Autorzy: Wu Yu , Li Xiaokang , Zhang Ying , Guan Zhenhao , He Qingrui

Identyfikatory

DOI

10.37190/ppmp/199872

• Języki publikacji: EN

Abstrakty

EN

Calcite and scheelite have the same active particles and similar crystal structure, and the flotation behavior is similar. In this paper, a kind of organic ellagic acid (EA) with low molecular weight and high stability was studied as a new environmental inhibitor of low dose calcite. The microflotation test results show that when the dosage of EA is 8 mg/L and NaOL is 30 mg/L, the recovery rate of calcite is 6.22% and the recovery rate of scheelite is 89.35%, which has obvious inhibition effect on calcite. By zeta potential evaluation and Fourier transform, the surface of calcite galena reduces its hydrophobicity and hinders the adsorption of collector. X-ray photoelectron spectroscopy (XPS) and density functional theory (DFT) analysis show that EA occurs mainly through the interaction of -OH and C=O hydrophilic groups with calcium atoms on the surface of calcite, forming Ca-O-C bonds leading to stable adsorption. New, efficient and environmentally friendly organic inhibitors are designed to selectively change the surface properties of calcite and enhance the flotation efficiency of scheelite and calcite.

Słowa kluczowe

EN

scheelite; calcite; novel depressants; ellagic acid; flotation separation

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Physicochemical Problems of Mineral Processing
• Rocznik: 2025
• Tom: Vol. 61, iss. 1
• Strony: art. no. 199872
• Opis fizyczny: Bibliogr. 37 poz., rys., tab., wykr.

Twórcy

autor

Wu Yu

• Faculty of Land and Resources Engineering, Kunming University of Science and Technology, Kunming 650093, China

autor

Li Xiaokang

• Faculty of Land and Resources Engineering, Kunming University of Science and Technology, Kunming 650093, China

autor

Zhang Ying

• Faculty of Land and Resources Engineering, Kunming University of Science and Technology, Kunming 650093, China
• State Key Laboratory of Clean Utilization of Complex Non-Ferrous Metal Resources, Kun-ming University of Science and Technology, Kunming 650093, China

autor

Guan Zhenhao

• Faculty of Land and Resources Engineering, Kunming University of Science and Technology, Kunming 650093, China

autor

He Qingrui

• Faculty of Land and Resources Engineering, Kunming University of Science and Technology, Kunming 650093, China

Bibliografia

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