Removal of quartz from iron ore was accomplished industrially via an anionic reverse flotation technique. However, in that kind of flotation, the interaction of the flotation reagents with the components of the feed sample makes the flotation a complicated system. Thus, the selection and optimization of regent dosages at various temperatures were performed using a uniform experimental design to estimate the optimum separation efficiency. Besides, the produced data as well as the reagent system were mathematically modeled at different flotation temperatures, and the graphical user interface GUI of MATLAB was conducted. The advantage of this procedure is that the user interface displayed in real-time can be conducted by adjusting the temperature at different values to automatically control the reagent system, besides predicting the concentrate yield, total iron grade, and total iron recovery.
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http://dx.doi.org/10.1038/s41598-023-35187-4 | DOI Listing |
Langmuir
January 2025
Key Laboratory of Green Utilization of Critical Non-Metallic Mineral Resources of Ministry of Education, Wuhan University of Technology, Wuhan 430070, China.
Reverse flotation separation of muscovite from apatite using a dodecylpyridinium chloride (DPDC) ionic liquid as the collector was studied in this work. The microflotation results depicted that DPDC had a strong collecting for muscovite but had a slight collecting for apatite when using phosphoric acid as a depressant for apatite in a weakly acidic pH value pulp, artificial mixture mineral flotation showed that reverse flotation separation of muscovite from apatite can be effectively achieved in the reagent scheme of phosphoric acid/DPDC, and DPDC had a better separation performance in the muscovite/apatite system than DDA. The adsorption measurements indicated that the adsorption amount of DPDC on the apatite surface was less than that of DPDC on the muscovite surface, and the zeta potential results confirmed that a strong interaction occurred between DPDC and the muscovite surface, while an extremely weak interaction occurred between DPDC and the apatite surface in the presence of phosphoric acid at pH ∼ 5.
View Article and Find Full Text PDFMolecules
December 2024
Department of Environment and Sustainable Development, Singidunum University, Danijelova 32, 11010 Belgrade, Serbia.
The growing demand for metal production promotes the search for alternative sources and novel modalities in metallurgy. Flotation tailings are an important secondary mineral resource; however, they might pose a potential environmental threat due to containing toxic metals. Therefore, proper leaching reagent selection is required.
View Article and Find Full Text PDFToxics
December 2024
School of Resource and Environmental Engineering, Shandong University of Technology, Zibo 255000, China.
The solid phase composition in oily sludge (OS) is a key factor affecting the oil-solid separation of OS. In this paper, the effects and mechanisms of solid-phase particle factors on the oil content of residue phase were investigated in order to improve the oil-solid separation efficiency. Flotation experiments were carried out on single-size sand and mixed-size sand OS consisting of three particle sizes at room temperature without adding flotation reagents.
View Article and Find Full Text PDFMolecules
December 2024
School of Chemistry and Chemical Engineering, School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China.
Sphalerite flotation is generally achieved by copper activation followed by xanthate collection. This study aims to propose a design idea to find novel collectors from the perspective of molecular design and prove the theoretical feasibility that the collector can effectively recover sphalerite without copper activation. To address this, 30 compounds containing different structures of sulfur atoms and different neighboring atoms were designed based on coordination chemistry.
View Article and Find Full Text PDFVarious sanitation methods to recover helminth eggs are currently in use; however, no international standard exists. Development of such a method first involves testing the effects of all reagents used in current methods on helminth egg viability to determine whether these chemicals affect the test organism. This study was conducted to investigate the effects on viability and development of Ascaris suum eggs when exposed for various periods to wash solutions (water, ammonium bicarbonate, Tween® 20, Tween® 80, Triton® X-100, Sunlight® Liquid, bentonite, and 7X®), flotation solutions (zinc sulfate, magnesium sulfate, sodium nitrate, brine, and sucrose), extraction solutions (10% formalin, acetoacetic buffer, acid-alcohol, ethyl acetate, and diethyl ether), extraction combinations (10% formalin + ethyl acetate, 10% formalin + diethyl ether, acetoacetic buffer + ethyl acetate, acetoacetic buffer + diethyl ether, and acid-alcohol + ethyl acetate), and incubation solutions (water, 0.
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