Effective flotation separation of scheelite and calcite by applying methylene phosphonic acid sodium as a novel and green depressant

• Autorzy: Zhou Hepeng , Wu Handan , Guo Jiangfeng , Tang Xuekun , Huang Wen , Luo Xianping

Identyfikatory

DOI

10.37190/ppmp/168517

• Języki publikacji: EN

Abstrakty

EN

It is known that the flotation separation of scheelite and calcite is quite difficult due to their similar surface properites. To slove the problem, ethylenediaminetetra (methylene phosphonic acid) sodium (EDTMPS), an environmentally friendly reagent, was employed as an efficient depressant for flotation separation of calcite for the first time. In flotation experiments, it demonstrates that EDTMPS could strongly inhibit the flotation of calcite but barely affect the flotaiton behavior of scheelite, showing excellent dpress ability and selectivity. Based on a series of measurements including contact angle analysis, zeta potential, and XPS analysis, it was found that large amout of EDTMPS could be absorbed on the surface of calcite through strong chemical chelation reaction and thus inhibiting the further adsorption of NaOL. On the contrary, little EDTMPS was absorbed on that of scheelite owing to the negatively charged tungstate ions on the surface in relative terms. All in all, these results exhibit EDTMPS has excellent selective inhibition ability on calcite, which can be potentially applied in actual scheelite and calcite flotation separation process.

Słowa kluczowe

EN

scheelite; calcite; inhibition mechanism; flotation separation

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Physicochemical Problems of Mineral Processing
• Rocznik: 2023
• Tom: Vol. 59, iss. 3
• Strony: art. no. 168517
• Opis fizyczny: Bibliogr. 39 poz., rys., tab., wykr.

Twórcy

autor

Zhou Hepeng

• Chongyi Zhangyuan Tungsten Co., Ltd., Ganzhou 341000, China
• Engineering Research Center for High-efficiency Development and Application Technology of Tungsten Resources (Jiangxi University of Science and Technology)
• Jiangxi Province Key Laboratory of Mining and Metallurgy Environmental Pollution Control, Jiangxi University of Science and Technology, Ganzhou 341000, China

autor

Wu Handan

• Engineering Research Center for High-efficiency Development and Application Technology of Tungsten Resources (Jiangxi University of Science and Technology)
• Jiangxi Province Key Laboratory of Mining and Metallurgy Environmental Pollution Control, Jiangxi University of Science and Technology, Ganzhou 341000, China

autor

Guo Jiangfeng

• Engineering Research Center for High-efficiency Development and Application Technology of Tungsten Resources (Jiangxi University of Science and Technology)
• Jiangxi Province Key Laboratory of Mining and Metallurgy Environmental Pollution Control, Jiangxi University of Science and Technology, Ganzhou 341000, China

autor

Tang Xuekun

• Engineering Research Center for High-efficiency Development and Application Technology of Tungsten Resources (Jiangxi University of Science and Technology)
• Jiangxi Province Key Laboratory of Mining and Metallurgy Environmental Pollution Control, Jiangxi University of Science and Technology, Ganzhou 341000, China

autor

Huang Wen

• Chongyi Zhangyuan Tungsten Co., Ltd., Ganzhou 341000, China

autor

Luo Xianping

• Engineering Research Center for High-efficiency Development and Application Technology of Tungsten Resources (Jiangxi University of Science and Technology)
• Jiangxi Province Key Laboratory of Mining and Metallurgy Environmental Pollution Control, Jiangxi University of Science and Technology, Ganzhou 341000, China

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2024).