Study on recovery of iron and sulfur from high-sulfur magnetite ore

• Autorzy: Zhao Yongqiang , Zhou Wen-tao , Sun Tichang , Ahmadzai Asadullah

Identyfikatory

DOI

10.37190/ppmp/150889

• Języki publikacji: EN

Abstrakty

EN

In this paper, to produce a saleable magnetite concentrate with a sulfur level below 0.20% and recover sulfur concentrate, flotation and magnetic separation tests were undertaken. Results showed that the optimum conditions of flotation were established as follows: grinding fineness of 90% particles passing 0.074mm, pH 6, 400 g/t of CuSO4, and 400 g/t of combined collectors. Under these conditions and magnetic separation, S grade of the magnetite concentrate was reduced from 3.20% to 0.18%, and the Fe grade improved from 57.29% to 71.17%. At the same time a sulfur concentrate with S grade of 38.05% and recovery of 91.32% was also obtained. The XPS results showed that the addition of CuSO4 benefited the formation of hydrophobic Sn2-/S0 and Cu+-xanthate, enhancing pyrrhotite floatability. The flotation separation efficiency could be enhanced using a mixture of collectors, and collector mixture demonstrated three synergetic effects, namely enhanced S recovery, improved adsorption behavior of the collectors and enhanced hydrophobicity of pyrrhotite surface.

Słowa kluczowe

EN

high-sulfur magnetite; pyrrhotite flotation; magnetic separation; mixed collectors

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Physicochemical Problems of Mineral Processing
• Rocznik: 2022
• Tom: Vol. 58, iss. 4
• Strony: art. no. 150889
• Opis fizyczny: Bibliogr. 35 poz., rys., wykr.

Twórcy

autor

Zhao Yongqiang

• College of Chemical and Bioengineering Engineering, Shandong University of Science and Technology, Qingdao, Shandong 266590, China

autor

Zhou Wen-tao

• College of Chemical and Bioengineering Engineering, Shandong University of Science and Technology, Qingdao, Shandong 266590, China

autor

Sun Tichang

• School of Civil and Resource Engineering, University of Science and Technology Beijing, Beijing 100083, China
• School of Civil and Resource Engineering, University of Science and Technology Beijing, Beijing 100083, China

autor

Ahmadzai Asadullah

• School of Civil and Resource Engineering, University of Science and Technology Beijing, Beijing 100083, 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).