The interaction mechanism of collector DLZ in the flotation process of chalcopyrite and pyrite was investigated through flotation experiments,zeta potential measurements and infrared spectrum analysis.Flotation test results indicate that DLZ is the selective collector ...
· from Siirt-Madenköy copper plant tailings, laboratory test work has to be done to determine the type of reagents, the flowsheet and the size of plant. The objective of the company is to develop a pyrite flotation circuit for concentration of pyrite from tailing dam to obtain 750,000 tons/year pyrite concentrate.
· Pyrite has long been used as a source of sulphur, and its recovery as a by-product from the flotation of certain base metal ores is a well established practice. Large tonnages of mill tailings which have accumulated as a result of various milling operations frequently contain significant amounts of pyrite. In many instances these tailings can be treated to yield pyrite …
· producing significant data on this particular matter. This revie w aims to gather these data with. an attempt to evaluate pyrite flotatio n as a whole …
· ground with a ball mill prior to each test. In these experiments the effects of depressant type and dosages at two different pHs for flotation behavior of pyrite were investigated. The flotation flow-sheet with copper ore is given in Figure 2. Three stages cleaning were applied after obtaining a rougher-copper concentrate.
· Figure 4.4. Flotation of pyrite recovery against S7 concentration at pH 3 79 Figure 4.5. Recovery of pyrite with 2 mg/1 F2B concentration 80 Figure 4.6. Recovery of pyrite and quartz using Fl at different pH 82 Figure 4.7. The effect of increasing Fl concentration on the recovery 82 Figure 4.8. The effect of conditioning on the flotation of ...
· The present invention relates to a process for separating pyrite from sulfide ores and coal during flotation separation which comprises the depression of pyrite with from about 0.125 to 1.250 pounds per ton of 2-S thironium-ethane sulfonate (IESA) as a pyrite depressant. The aforementioned depressant is surprisingly effective in pyrite removal ...
· Can you list the factors affects the floatability of pyrite from refractory low grade ore. I used a Wemco lab flotation cell and aimed on analysing factors like collector dosages (PAX), Activator (Copper sulphate),MIBC, pH and others like pulp density and particle size (70 and 150 microns) .However how these factors affect the floatability of the pyrites from low grade …
The Denver cell test with a porphyry ore shows a selective flotation with IPETC at a pH of 11 with a low collector dosage (5 g/ton), achieving recoveries of 92% …
· The pyrite rougher flotation tailings in this example were treated differently than as shown in FIG. 1. Instead of floating a bulk sphalerite-arsenopyrite concentrate, the arsenopyrite was depressed during sphalerite flotation using additions of base, cyanide, and xanthate collector and then subsequently activated with copper sulfate and collector and floated.
· Pyrite flotation is a well-known and inexpensive method (Moslemi and Gharabaghi 2017; Santander and Valderrama 2019; Wang and Forssberg 1991) because flotation chemicals and process water can be almost completely recycled due to the coarse particle size of the hydrocyclone underflow. In Peru, four companies have programmed this system into the ...
Thermodynamic calculations,alternating current impedance and cyclic voltammetry were adopted to study the flotation behaviors of lime and sodium hydroxide on the pyrite.Single mineral flotation test results show that lime depresses pyrite more strongly than sodium hydroxide when pH is in the range of 7.0-11.5;at pH 11.5,lime and sodium hydroxide depress pyrite intensely.By …
· For each turbidity test, 0.1 g of serpentine sample was mixed with 100 mL of 10 −3 mol/L KNO 3 solution. If needed, 1 g of pyrite sample was added into the suspension at the beginning of conditioning period, then the pulp pH was adjusted and the depressant was added. ... Pyrite flotation can be significantly depressed by fine serpentine (− ...
· According to the mass balance results (Wightman, 2010), the copper recovery in Cu Rougher concentrate is about 72 %, i.e. 28 % of copper is lost to pyrite flotation circuit. The test results given in Figure 3.15, on the other hand, showed that 5 g/t extra collector addition to Cu Rougher Tail will increase the recovery in copper rougher section ...
· in practice for copper flotation from Cu-Zn-pyrite ores of Paper ID: NOV161778 311. International Journal of Science and Research (IJSR) ISSN (Online): 2319-7064 Index Copernicus Value (2013): 6.14 | Impact Factor (2014): 5.611 Volume 5 …
· The depression of pyrite flotation by polysaccharides is due to the selective adsorption of polysaccharides polymers on pyrite surface. Bulut et al. (2011) investigated the depression effect of starch on pyrite flotation and found that starch was effective at a low dosage (1.7 mg L −1) and more pronounced at alkaline pH (10) than natural pH ...
· In test No. 63, using Pentarco No. 400 and sodium silicate, there is a decided differential flotation effect, giving high copper and zinc recoveries with …
· An appropriate increase in mineral particle size is beneficial to improve the flotation effect of coarse-grained copper minerals; while the mineral particle size is too fine, the flotation effect will be worse at high concentration and high flotation machine speed, indicating the fast flotation of pyrite can be realized only under suitable ...
· behavior of chalcopyrite and pyrite. In the flotation test, SBX with a concentration of 0.1 mol·m-3 was used as collector, H 2 SO 4 and NaOH or lime were used as pH regulators, and 1×104 mg·m-3 of 2# oil was used as the frother. 2 4 6 8 …
· At present F1 collects sphalerite as well as pyrite but several sphalerite depressants such as zinc sulphate, ethylenediaminetetraacetate and quebracho should be investigated. The implementation of the research programme will include the following phases. Phase 1 will involve basic flotation studies on aresenopyrite and pyrite pure mineral samples.
· The solution chemistry of sodium silicate and implications for pyrite flotation have been studied. In addition to flotation and sedimentation tests, electrophoresis, inductively coupled plasma (ICP) tests, and X-ray photoelectron spectroscopy (XPS) have been used. The flotation and sedimentation results show that lizardite causes problems in the flotation of pyrite by …
· DOI: 10.1016/J.MINENG.2016.06.018 Corpus ID: 99106529; The depression of pyrite in selective flotation by different reagent systems – A Literature review @article{Mu2016TheDO, title={The depression of pyrite in selective flotation by different reagent systems – A Literature review}, author={Yufan Mu and Yongjun Peng and Rolf Andreas Lauten}, journal={Minerals …
· collectors are very effective for the flotation of copper sulfide minerals and POM (platinum group metal) sulfide minerals. More recently, the TIC collectors were evaluated for auriferous pyrite recovery in bench scale plant scale flotation testing in the United States and in plant tests at Anglogold in South Africa. TIC
Introduction. Pyrite (FeS 2, iron disulfide), is the most abundant sulfide mineral and commonly associated with valuable minerals such as sphalerite, chalcopyrite, galena, gold as well as coal (Wang and Forssberg, 1991, Wang, 1995, Dimitrijevic et al., 1996, Jiang et al., 1998).Pyrite has very low economic significance and is usually removed from the valuable components by …