Influence and mechanism of Zn²⁺ on fluorite/calcite in sodium hexametaphosphate flotation system

• Autorzy: Ruitao Liu , Dan Liu , Ruofan Sun , Daqian Wang , Wenkang Zhang , Yuebing Liu , Shuming Wen

Identyfikatory

DOI

10.37190/ppmp/151676

• Języki publikacji: EN

Abstrakty

EN

Fluorite and calcite have similar surface properties and natural floatability, so their flotation separation has always been a problem faced by the beneficiation industry. The key to flotation separation is the choice of depressants. Sodium hexametaphosphate (SHMP) has a good effect on fluorite calcite selective inhibition. In this paper, the effects of Zn²⁺ on the selective inhibition of SHMP in the flotation process of fluorite and calcite were studied through single mineral and artificial mixed mineral flotation experiments. Solution chemical calculation, X-ray photoelectron spectroscopy (XPS), Fourier Transform Infrared spectroscopy (FT-IR) and Time of Flight Secondary Ion Mass Spectrometry (ToF-SIMS) analyses investigated the mechanism of action of Zn²⁺, which had the most significant negative effect on the selective inhibition of SHMP. The results show that the main components of SHMP inhibiting minerals are HPO4^2- and H₂PO^4-, which can react with Ca active sites on the mineral surface to form hydrophilic Ca(H₂2PO₄)2 and CaHPO₄, while Zn²⁺ The presence of HPO₄^2- in solution resulted in the formation of stable ZnHPO₄ complexes, thereby weakening the inhibitory effect of SHMP on minerals.

Słowa kluczowe

EN

fluorite; calcite; sodium hexametaphosphate; flotation; metal ions

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Physicochemical Problems of Mineral Processing
• Rocznik: 2022
• Tom: Vol. 58, iss. 6
• Strony: art. no. 151676
• Opis fizyczny: Bibliogr. 31 poz., rys., wykr.

Twórcy

autor

Ruitao Liu

• State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Faculty of Land Resource Engineering, Kunming University of Science and Technology, Kunming 650093, Yunnan, China
• Yunnan Key Laboratory of Green Separation and Enrichment of Strategic Mineral Resources, Kunming 650093, Yunnan, China

autor

Dan Liu

• State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Faculty of Land Resource Engineering, Kunming University of Science and Technology, Kunming 650093, Yunnan, China
• Yunnan Key Laboratory of Green Separation and Enrichment of Strategic Mineral Resources, Kunming 650093, Yunnan, China

autor

Ruofan Sun

• State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Faculty of Land Resource Engineering, Kunming University of Science and Technology, Kunming 650093, Yunnan, China
• Yunnan Key Laboratory of Green Separation and Enrichment of Strategic Mineral Resources, Kunming 650093, Yunnan, China

autor

Daqian Wang

• State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Faculty of Land Resource Engineering, Kunming University of Science and Technology, Kunming 650093, Yunnan, China
• Yunnan Key Laboratory of Green Separation and Enrichment of Strategic Mineral Resources, Kunming 650093, Yunnan, China

autor

Wenkang Zhang

• State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Faculty of Land Resource Engineering, Kunming University of Science and Technology, Kunming 650093, Yunnan, China
• Yunnan Key Laboratory of Green Separation and Enrichment of Strategic Mineral Resources, Kunming 650093, Yunnan, China

autor

Yuebing Liu

• BGRIMM Technology Group, Beijing 100160, China

autor

Shuming Wen

• State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Faculty of Land Resource Engineering, Kunming University of Science and Technology, Kunming 650093, Yunnan, China
• Yunnan Key Laboratory of Green Separation and Enrichment of Strategic Mineral Resources, Kunming 650093, Yunnan, China

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).