A preliminary investigation of dry gravity separation with low specific gravity ores using a laboratory Knelson Concentrator

• Autorzy: Zhou Meng , Kökkılıç Ozan , Langlois Raymond , Waters Kristian E.

Identyfikatory

DOI

10.37190/ppmp/165992

• Języki publikacji: EN

Abstrakty

EN

It has become an active research area for treating low specific gravity (SG) deposits by centrifugal separation due to its high efficiency, low cost and minor environmental impact. Laboratory Knelson Concentrator has shown its potential for processing high density ores on a dry basis. This study investigated the feasibility and the optimum operating conditions when processing a dry low SG feed with a modified Knelson Concentrator. A synthetic mixture of magnetite and quartz with a grade of 1% magnetite was used to mimic a low-density ratio ore. Bowl speed (G), air fluidizing pressure (psi) and solids feed rate (g/min) were chosen as the operating variables. Box-Behnken design was used to design the experiments and response surface method was used for optimization. The effects of each individual factors and their interactions on concentrate grade and magnetite recovery were evaluated. The dry process achieved up to 60 % magnetite recovery with an upgrade ratio of 5. The optimized values for the concentration with the highest recovery and grade of bowl speed, solids feed rate and air fluidizing pressure are 27 G, 200 g/min and 12 psi, respectively.

Słowa kluczowe

EN

Knelson concentrator; dry gravity separation; response surface method; Box-Behnken design

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Physicochemical Problems of Mineral Processing
• Rocznik: 2023
• Tom: Vol. 59, iss. 5
• Strony: art. no. 165992
• Opis fizyczny: Bibliogr. 41 poz., fot., rys., tab., wykr.

Twórcy

autor

Zhou Meng

• Department of Mining and Materials Engineering, McGill University, MH Wong Building, 3610 University, Montreal, Quebec, H3A 0C5, Canada

autor

Kökkılıç Ozan

• Department of Mining and Materials Engineering, McGill University, MH Wong Building, 3610 University, Montreal, Quebec, H3A 0C5, Canada

autor

Langlois Raymond

• Department of Mining and Materials Engineering, McGill University, MH Wong Building, 3610 University, Montreal, Quebec, H3A 0C5, Canada

autor

Waters Kristian E.

• Department of Mining and Materials Engineering, McGill University, MH Wong Building, 3610 University, Montreal, Quebec, H3A 0C5, Canada

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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).