Effect of Stable Nano-microbubbles on Sulfide Copper Flotation and Reduction of Chemicals Dosage
محل انتشار: مجله معدن و محیط زیست، دوره: 15، شماره: 1
سال انتشار: 1403
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 55
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شناسه ملی سند علمی:
JR_JMAE-15-1_014
تاریخ نمایه سازی: 20 دی 1402
چکیده مقاله:
Generally, mineral processing plants generate a large quantity of waste in the form of fine particles. The flotation speed of mineral microbubbles by coarse bubbles is dramatically higher than that of individual particles. The advantage of microbubbles is due to the increase of binding efficiency of conventional bubbles with fine particles coated with microbubbles. Here, the focus is on reducing chemicals consumption and improving recovery. After preparing a representative sample, XRF, XRD, and mineralogical analyses were performed. Then ۵۰ experiments were selected by experimental design using the response surface method (RSM), and in the form of central Composite design (CCD) by (design expert) DX ۱۳ software. The interactions of collector consumption, frother agent, pH, particle size, and solid percentage were investigated, and ۲۵ experiments using typical flotation and without nano-microbubbles and others with nano-microbubbles were conducted. The laboratory standard limit of the collector used in the pilot plant of the Sarcheshmeh Copper copper complex is ۴۰ g/t (۲۵ g/t of C۷۲۴۰ plus ۱۵ g/t of Z۱۱). Here, by consuming ۲۰ g/t of collector in the absence of nanomicrobubbles, a recovery of ۷۹.۹۶% and in the presence of nanomicrobubbles, a recovery of ۸۰.۰۷% was obtained, that is a ۵۰% reduction in collector consumption and a ۰.۱۱% increase in recovery was observed. Also the laboratory standard limit of frother used in the pilot plant of Sarcheshemeh Copper Complex is ۳۰ g/t (۱۵ g/t of MIBC plus ۱۵ g/t of A۶۵). Here, by using ۱۰ g/t of frother in the absence of nanomicrobubbles, a recovery of ۷۸.۱۲%, and in the presence of nanomicrobubbles, a recovery of ۸۲.۰۵% was obtained. In other words, a decrease of ۶۶.۶% in the consumption of frother and an increase of ۱.۹۳% in recovery was observed.
کلیدواژه ها:
نویسندگان
Ali Nikouei Mahani
Faculty of Mining, Petroleum & Geophysics Engineering, Shahrood University of Technology, Shahrood, Iran.
Mohammad Karamoozian
Faculty of Mining, Petroleum & Geophysics Engineering, Shahrood University of Technology, Shahrood, Iran.
Mohammad Jahani Chegeni
Faculty of Mining, Petroleum & Geophysics Engineering, Shahrood University of Technology, Shahrood, Iran.
Mohammad Mahmoodi Meymand
Research and Development Division, Sarcheshmeh Copper Mine, National Iranian Copper Industries Company, Rafsanjan, Iran.
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