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Showing 1 to 11 of 11 for “"Flotation reagents"”.
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The effect of flotation reagents on the coagulation and dewatering of flotation tailings
… water scarcity, especially in PGM mining, where flotation tailings pose serious difficulties. Water constitutes 80-85% of the mineral pulp in the flotation process, emphasising the significance of its role. However, water recycling from tailings dams and dewatering systems is becoming …
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Effects of various flotation reagents on a copper sulfide ore, ore number 6271
Thesis (B.S.)--Massachusetts Institute of Technology, Dept. of Mining Engineering, 1932.
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Investigation of the effect of the reagent suite in froth flotation of a Merensky ore
… ores are extracted through the aid of chemical reagents (activators, collectors, depressants, frothers, modifiers) which are added to the flotation circuits to facilitate the separation between these minerals and the undesired gangue minerals present in the ore. The process is made complex by …
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Optimization of a Copper/Molybdenum Flotation Circuit by Depressing Pyrite from the Rougher Flotation Stage Using Different Scheme of Reagents
A study to determine methods to hinder the flotation of pyrite, other than the specific use of lime, in rougher flotation was conducted. Specifically, the goal was to determine an effective alternative to pH adjustment using lime. Experiments were conducted using the most common selection of …
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Desulphurisation flotation for the selective removal of pyrite from coal discards using microorganisms
… residual waste material using a two-stage froth flotation to obtain a values stream, a low volume sulphide-rich concentrate that can be easily contained, and a high volume benign tailings fraction that can be safely disposed of. The technical feasibility of this two-stage process has been …
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Bacterial and chemical depression of pyrite in froth flotation of coal
Froth flotation was used to separate the pyrite sulfur and ash from pulverized coal samples of Illinois No. 6, Pittsburgh, and Middle Kittanning seams. In order to depress the coal pyrite in the flotation process, the coal samples were conditioned in "bacterial liquor." Iron oxidizing bacteria …
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Environmental Performance Assessment of Froth Flotation for Coal Recovery and Sulfur Removal from Ultrafine Coal Waste
… and loss of valuable resources. In the two stage flotation process developed at the University of Cape Town, froth flotation is used to both recover coal (stage 1) and remove pyritic sulfur (stage 2) from ultrafine coal waste, resulting in three outputs streams: a saleable coal product, a small …
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The utilization of paper mill wastes in the flotation of manganese ores
… Paint Bank deposits of Virginia was prepared for flotation by grinding to different degrees of fineness. The coarsest size was a 28 Tyler Mesh and the finest was 100 Tyler mesh. Under size products of the grinding were as fine as minus 200 Tyler Mesh. Flotation tests were run on the ore in a …
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The effect of recycle water quality on the flotation of a Platreef ore
… solid particles, heavy metal ions, residual flotation reagents, organics, and other pollutants. Most plants have on-site wastewater treatment plants to treat the effluent before recycling it back to the mineral processing plant (Park et al., Han & Ji, 2018). This practice is expensive due to …
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Effect of VRM on a polymetallic sulfide ore and the flotation response as compared to conventional wet and dry rod milling
… and recovered in downstream processes. Froth flotation is a selective separation process that utilises differences in surface properties to separate value minerals from unwanted gangue. The success of flotation is dependent on chemistry, operational and equipment factors. The chemistry factors …
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A stepwise Study on the characterisation and processing of South African Platinum Group Tailings
… that might hinder their interaction with flotation reagents such as collectors and hence, hinder their flotation response, presenting a challenge for their proposed reprocessing. More obviously, as they are a waste product, their grades will be far lower than the fresh ores that produced …