Effect and mechanism of surface pretreatment on desulfurization and desilication from low-grade high-sulfur bauxite using flotation

• Autorzy: Zhou Jieqiang , Mei Guangjun , Yu Mingming , Li Haonan

Identyfikatory

DOI

10.5277/ppmp19015

• Języki publikacji: EN

Abstrakty

EN

Surface pretreatment using a hot alkaline solution was carried out to improve the effect of desulfurization and desilication on low-grade bauxite with high sulfur content. The results demonstrated that, after surface pretreatment, a maximum grade and recovery of 66.17% and 87.27%, respectively, were achieved, and the sulfur content and ratio of A/S were 0.19% and 7.09, respectively. The surface pretreatment mechanism was further analysed by XRD and SEM analyses. The improved results of desulfurization and desilication were attributed to the selective corrosion of aluminosilicate minerals in coarse particles, reducing the active silicon sites on the surface of coarse particles as well as enhancing the cation exchange between the collector and aluminosilicate minerals.

Słowa kluczowe

EN

bauxite; surface pretreatment; flotation; desulfurization and desilication

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Physicochemical Problems of Mineral Processing
• Rocznik: 2019
• Tom: Vol. 55, iss. 4
• Strony: 940--950
• Opis fizyczny: Bibliogr. 21 poz., rys., tab.

Twórcy

autor

Zhou Jieqiang

• School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan 430070, China
• Pingdingshan Huaxing Flotation Engineering Technology Co., Ltd., Pingdingshan 467000, China

autor

Mei Guangjun

• School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan 430070, China
• Hubei Province Key Laboratory of Processing of Mineral Resources and Environment, Wuhan 430070, China

autor

Yu Mingming

• School of Resources and Environmental Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, China

autor

Li Haonan

• School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan 430070, China

Bibliografia

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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 (2020).