Study on surface modification of cerussite by thermochemical processing with pyrite

• Autorzy: Zheng Yong-Xing , Ning Ji-Lai , Xie Haiyun , Lv Jin-Fang , Hu Pan-Jin , Pang Jie

Identyfikatory

DOI

10.37190/ppmp/130576

• Języki publikacji: EN

Abstrakty

EN

In this paper, surface modification of cerussite by thermochemical processing with pyrite was studied based on microflotation tests, X-ray powder diffractometry (XRD), X-ray photoelectron spectroscopy (XPS) and electron probe microanalysis (EPMA). Microflotation test results showed that the surface modification facilitated flotation of the treated cerussite and improved the flotation recovery to approximately 90%. The results of XRD analyses confirmed that cerussite was transformed into massicot, which then interacted with pyrite to form PbS, PbSO₄, PbO•PbSO₄ and 4PbO•PbSO₄. XPS analyses results revealed that both PbS and PbS₂ were formed on the mineral surface, and the percentage of PbS increased with increasing FeS₂/PbCO₃ (F/P) mole ratio, which was advantageous for the flotation of the modified cerussite. EPMA analyses showed that particles with layered configurations were obviously formed after thermochemical processing. The thickness of the products at the outer layer of the particles increased when the F/P mole ratio increased. Moreover, the S and O contents in the products increased and decreased, respectively.

Słowa kluczowe

EN

cerussite; pyrite; surface modification; thermochemical processing; flotation

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Physicochemical Problems of Mineral Processing
• Rocznik: 2021
• Tom: Vol. 57, iss. 1
• Strony: 156--167
• Opis fizyczny: Bibliogr. 40 poz., rys., wykr.

Twórcy

autor

Zheng Yong-Xing

• State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming 650093, China
• Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650093, China

autor

Ning Ji-Lai

• State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming 650093, China

autor

Xie Haiyun

• State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming 650093, China
• Faculty of Land Resource Engineering, Kunming University of Science and Technology, Kunming 650093, China

autor

Lv Jin-Fang

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

autor

Hu Pan-Jin

• State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming 650093, China

autor

Pang Jie

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

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021).