Jan 28, 2021 Underflow Pyrite Flotation. For the flotation tests, the material originating from the cyclone underflow at the Chinchan tailings dam were tested in a Denver Sub-A flotation cell at 1500 rpm, with 0.050 kg/t of sodium isopropyl xanthate (Z-11) as the collector and 0.1 kg/t of D-1012 as the frothing agent. The samples were repulped to 38% solids.
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The cells were able to effectively depress pyrite flotation in presence of collectors like potassium isopropyl xanthate and potassium amyl xanthate. On the other hand the flotability of arsenopyrite after conditioning with the cells was not significantly affected. The activation of pyrite by copper sulfate was reduced when the minerals were ...
Results of testing the first rougher cell (approximately 69% Cu recovery), showed that 40–60% of pyrite in the finer class of the concentrate (−45 μm) was recovered by entrainment. For the ...
bination of flotation, infrared spectroscopic, and elec trokinetic data (10). The difference in the flotation response of chalcocite and pyrite as a function of potential is ideal for examining flotation separation of a mixed bed using elec-trochemical potential as a control. The interaction of xan
Jun 15, 2020 Mixed sphalerite-pyrite flotation tests. In the flotation cell, 10 g of sphalerite and 10 g of pyrite were conditioned in 400 mL of distilled water for 3 min after adding the following reagents in sequence: 1 kg/t of Na 2 SO 3, 5 ppm of Pb 2+, 20 g/t KAX, and 20 L/L AEROFROTH 76A. 188.8.131.52.
Flotation reagents can change the surface properties of minerals, leading to differences in the interaction between mineral particles and affecting the mutual aggregation or dispersion of particles. In this work, we studied the role of activator copper sulfate, collector butyl xanthate and frother terpineol in adjusting the potential energy of pyrite particles from the perspective of the ...
The flotation test was carried out in a 40-cm3 plexiglass cell of a XFG-II flotation machine (Jilin Prospecting Machinery Factory, China). For each test, 2.0 g of the sample was washed ultrasonically and placed in the flotation cell. Distilled water, pH regulator, collector, and frother were added in turn,
The amount of adhered cells to pyrite was estimated by subtracting the value of the free cells from the added cells. Bacterial adhesion to the glass wall was negligible. RESULTS Effect of Microbial Substances The influence of various bacterial substances in culture on the pyrite floatability in column flotation was investigated.
Apr 29, 2021 During the flotation process, the flotation effect of aimed minerals is influenced by many factors. In this passage, we will introduce how slurry concentration, flotation particle size, and the rotating speed of flotation cells influence pyrite flotation.
Arsenopyrite is separated from a mixture with pyrite by contacting the mixture with a sulfitic agent providing HSO 3 - ions at elevated temperature and pH below about 8 for a period sufficient to impart a selective depression property to the arsenopyrite. On addition of a collector the pyrite is rendered floatable, enabling froth flotation to achieve a concentrate rich in pyrite and tailings ...
The flotation cell can have any of various configurations and can be multiple cells with various flow arrangements. The basic improvement of the process of this invention comprises the addition of sulfite to the flotation pulp to depress flotation of pyrite thereby causing a substantial portion of the pyrite to be removed from the cell in the ...
Normally pyrite should float well under typical sulphide flotation regime. However, surface alteration such as tarnishing due to geo-chemical actions can be one of the inhibiting factors. (unknown)
Sep 01, 2019 The rougher flotation tests were performed in a Denver D-12 flotation machine with a 2.5 L cell. In each rougher flotation test, 2.260 L of fresh tailing pulp with 37.4 1.3% solid by weight, 4.7 0.3% pyrite grade, and pH 9.6 04 were added in the cell and agitated at …
Jul 27, 2018 Flotation experiments were carried out in a laboratory-scale coal flotation column, using coal prepared in the same manner as that used in the conventional coal flotation tests. Since it is not practical to liberate coal pyrite completely from the locked coal particles, experiments were conducted using mineral pyrite to determine the extent to which it was floatable using only fuel oil as a collector.
Denver-type laboratory flotation cell with a constant capacity of 2.5 dm3 and impeller speed at 1500 rpm was used. In each flotation experiment, 550 g of the sample was used. Before performing flotation tests, the pulp was conditioned for 9 minutes: for preparation of the pulp with a certain depressant
Abstract. The flotation of chalcocite, bornite, chalcopyrite, and pyrite has been studied in a microflotation cell in which the potential of a bed of the mineral particles could be controlled electromechanically. The ethylxanthate-induced flotation of each mineral is markedly dependent on electrochemical potential, with the recovery changing from 0 to 100 pct in potential intervals of - 0.2 V.
Jul 31, 2015 The purpose of this research is to recover slime waste from feldspar flotation plant at Attanee International Co., Ltd., Tak province.Slime waste with particle size less than 230 mesh, is …Read the rest >
Industrial flotation machines can be divided into four classes: (1) mechanical, (2) pneumatic, (3) froth separation, and (4) column. The mechanical machine is clearly the most common type of flotation machine in industrial use today, followed by the rapid growth of the column machine.Read the rest >
flotation cells mineral processing equipment. Acrusheris a machine designed to reduce large rocks into smaller rocks, gravel, or rock dust. The Blake type jawcrusherhas a fixed feed area and a variable discharge area. Blake crushers are of two types- single toggle and double toggle. read more; ore mining and quarry appliion flotation cell series peRead the rest >