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2020618 · minerals is a phase-transition process [5–8]. Thus, sulfidization process involves dissolution, di usion, adsorption and chemical reaction [9]. In this communication, research and practice have shown that ammonium ions can further enhance the sulfidization flotation of copper oxide minerals [10–13], and eliminate the depression of malachi.
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The hydroxamate flotation of malachite is effective between pH 6 and 10, a region in which HCO3− and CuOH+ ions are the predominant potential determining ions for malachite. Adsorption measurements and infrared analysis indicate that in this pH range octyl hydroxamate chemisorbs on malachite surface.
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2017425 · Abstract The interaction between sulfide ion species and malachite surfaces in relation to flotation was studied in this work using X-ray photoelectron spectroscopy analysis, surface adsorption, zeta potential …
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20231130 · In the realm of mineral processing, flotation machines stand as indispensable tools for separating valuable minerals from impurities based on their surface properties. Among the various flotation machine designs, the inflatable flotation machine has emerged as a versatile and efficient option, particularly for small-scale and mobile mining …
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201655 · Design Study for 400-Ton per Day Flotation Plant. The sulphur mill was designed for best adaptation to the mill site available. The design provided for simplicity of construction and final operation, and full usage of construction items available. The flowsheet was based on laboratory tests wherein troublesome factors were eliminated …
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2020613 · The larger size of sulfidization products may result in a darker, stabler and denser sulfidization product coating layer, and then may reduce the generation of colloidal copper sulfide in the residual liquids. Ultimately, ammonium facilitates better performance of sulfidization flotation of malachite.
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202091 · The results of micro-flotation tests indicate that DSHA exhibits a powerful ability to collect malachite and a satisfactory selectivity against quartz. The batch-flotation tests also prove that DSHA is an effective collector for copper oxide ore.
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201855 · In this study, the surface modification of malachite with ammonia was developed as a promising method to enhance the adsorption of sulfide species onto the mineral surface. The flotation recovery of the ammonia-modified malachite was significantly improved under the same flotation condition compared with that of bare malachite.
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2020116 · Commonly used flotation machines can be divided into five categories: mechanical agitation flotation machine, inflatable agitation flotation machine, flotation column, impeller flotation machine and rod flotation machine. This article will introduce the working principles of these five types of flotation machines one by one to help you choose …
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202351 · Abstract Malachite, as an important copper oxide mineral, is mainly separated and recovered from ores using sulfidization xanthate flotation method. In this paper, copper ions and ammonium salts were used as activators to modify the malachite surface, which improved its reactivity and improved the sulfidization and hydrophobicity of …
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