Nigeria is rich is solid mineral resources, such as: Kaolin, gypsum, mica, clay, tantalite, iron ore, gemstone, silica sand.
Read More
Recycling concrete &building rubble is not only able to bring profit to investors, but also good for environment protection.
Read More
By absorbing the advanced technology from the world, we researched and designed PF series impact crusher.…
Read More
Base on the plentiful experience of producing and marketing of impact crusher, Sofol R&D institution…
Read More
Adopting technology from the world, PY Series spring cone crusher has an excellent performance in secondary…
Read More
The vibrating screen is a kind of sieving equipment of international advanced level, developed by our…
Read More
Sofol VSI Series vertical shaft impact crusher is designed by reputed German expert of Sofol and every…
Read More
To prepare the flat hematite surfaces, the lump hematite was cut into approx. 10×10×5 mm slices with a metallographic saw (MTI co., Ltd., USA) (Fig. 1 a).The hematite surfaces with different roughness were engineered by a Spectrum System® 1000 grinding and polishing machine (Fig. 1 b).The flat surfaces of hematite were polished in …
Details
Flotation is the main method for separating FAP from hematite [12]. Typically, a collector reagent is added to float the FAP, while an inhibitor is added to prevent the hematite from floating, achieving the separation of FAP and hematite [13]. Currently, the commonly used collector for FAP is fatty acid, such as sodium oleate [14].
Details
The results from flotation experiments demonstrate that the combined use of SLS and STPP significantly enhances the efficiency of separating hematite and anglesite. This combination effectively reduces hematite recovery from 19.0 % to 7.3 %, while still achieving a high recovery of over 90 % for anglesite. The
Details
The selective flotation separation mechanism of DHDAB to quartz and hematite was also analyzed by zeta potential tests, FT-IR analyses, contact angle tests, X-ray photoelectron spectroscopy (XPS) tests and density functional theory (DFT) analyses, meanwhile, the influence mechanism of the hydroxyl group on the performance of …
Details
DOI: 10.1016/J.SEPPUR.2007.08.023 Corpus ID: 95154246; Removal of hematite from silica sand ore by reverse flotation technique @article{Mowla2008RemovalOH, title={Removal of hematite from silica sand ore by reverse flotation technique}, author={Dariush Mowla and Gholamreza Karimi and K. Ostadnezhad}, …
Details
The concentration of low grade iron ore resources was evaluated by washing and reduction. The advanced concentration methods for low grade limonite and hematite iron ores of South Eastern Anatolian resources required such specific methods. The followed column flotation and magnetic separation, microwave radiated reduction …
Details
In this study, an asynchronous flocculation method was explored in the flotation separation of mixtures of ultra-fine hematite (d 50 = 7.2 µm) and ultra-fine quartz (d 50 = 1.6 µm) using polyethylene oxide (PEO) and starch as the flocculant of quartz and hematite, respectively. Dodecylamine acetate was used as a collector for quartz in the ...
Details
In this study, the quartz-hematite reverse flotation separation was realized by using curdlan to selectively depress hematite. The behavior of curdlan on quartz-hematite reverse flotation ...
Details
The flotation recovery of hematite as a function of flotation time at selected pulp pH is presented in Fig. 2. The flotation rate of hematite is also shown to be fast at pH 7, and significantly slow at pH 11. From the results, maximum flotation recovery of hematite occurred at pH 7, where a recovery of 85% at a rate of 1.49 min −1 was
Details
As an innovative approach, this investigation explored the potential of locust bean gum (LBG) as a biodegradable depressant for the selective separation of fine hematite from …
Details
The flotation tests found that the flotation recovery of fine hematite increased observably to 94.51% from 68.69% by adding 4 mg/L PAAS before NaOL at pulp pH 7.3; in the separation of mixed hematite and quartz, the separation efficiencies of fine hematite with and without the addition of the PAAS are 85.71% and 68.84%, respectively.
Details
Download scientific diagram | The flotation separation efficiency of mixed hematite and silicate minerals. from publication: Mechanism of humic acid adsorption as a flotation …
Details
MOWLA D, KARIMI G, OSTADNEZHAD K. Removal of hematite from silica sand ore by reverse flotation technique [J]. Separation and Purification Technology, 2008, 58(3): 419–423. Article Google Scholar LIMA N P, VALADÃO G E S, PERES A E C. Effect of amine and starch dosage on the reverse cationic flotation of an iron ore [J].
Details
Different flotation tests and surface analyses were employed to understand HA's adsorption mechanisms as a depressant for reverse flotation separation of hematite from complex silicates (hornblende and augite). Outcomes indicated that HA could significantly depress hematite, even at its low concentration (10–20 mg/L).
Details
The effect mechanism of siderite on reverse flotation of hematite was studied by solution chemistry, ultraviolet spectrophotometry (UV) and Fourier transform infrared …
Details
The process flow of the extraction of iron from hematite is as follows: crushing, grinding, extracting (flotation separation, magnetic separation, gravity separation, etc.) and drying. Stage I Crushing and screening hematite. Stage II Grinding hematite. Stage III Extracting iron from hematite. * Hematite flotation separation.
Details
As a cornerstone of the national economy, the iron and steel industry also generates a significant amount of sintering dust containing both valuable lead resources and deleterious elements. Flotation is a promising technique for lead recovery from sintering dust, but efficient separation from Fe2O3 is still …
DetailsFroth flotation is a multipurpose and versatile method of separating minerals by exploiting the differences in their physicochemical properties. ... Hematite flotation recoveries were higher than that of monazite at pH 3, 5, and 11. However, it can also be observed that the collecting ability ofon quartz mineral was poor, with quartz ...
Details
By common knowledge, DDA is a cationic collector which is often applied for the reverse flotation separation of hematite from quartz [26], [27]. Hematite and quartz flotation properties were investigated in the presence of XG and DDA (50 mg/L), as shown in Fig. 2. The tests were conducted at nature pH 6.3 in Fig. 2 (a). The quartz recovery …
Details
2.2. Surface dissolution tests. Surface dissolution experiments were carried out in the following orders: first, deionized water and pure mineral particles were mixed with a liquid-solid ratio of 20:1 at pH; second, after stirring for 30 min by a magnetic stirrer, the pulp was centrifuged at 3500 rap/s for10 min to collect the supernatant and precipitation.
Details
The flotation tests for the hematite-quartz mixture confirmed that a suitable starch with proper solution preparation is necessary for achieving a high flotation separation efficiency. Specifically, 65–75 °C or pH 13 was the preferred condition for dissolving WS, NS and G50 whereas for G80, a higher starch solution preparation …
Details
The quartz ore used in this experiment is from Hanzhong City, Shaanxi Province, China. The quartz sample was ground by a ball mill, and the part with a particle size of -212+109 (mu) m was selected for the flotation experiment. For ICP and XRD tests, the samples were further ground to -20 (mu) m. The impurity compositions in the …
Details
The flotation results and kinetics analysis indicated that both the recovery and content of hematite/quartz in the concentrate decreased apparently after adding citric acid, resulting in an increase in the kinetic selectivity index (KSI) for separating fine siderite from hematite/quartz. Zeta potential measurement, FT-IR analysis, and AFM ...
Details
The separation by flotation of monazite from these minerals relies on the difference in the surface chemistry profile of the minerals. ... Selective flotation of beach sand monazite. Min Mag 113(1):17–23 ... Y, Zhang Y, Li G, Wu Y, Jiang T (2014) A further study on adsorption interaction of humic acid on natural magnetite, hematite and quartz ...
Details
Micro-flotation results showed that NHDE exhibited outstanding performance for collecting quartz, and the efficient flotation separation of quartz from its mixture with hematite could be conducted ...
Details
Reverse flotation separation of hematite from quartz assisted with magnetic seeding aggregation. W. Yin, Donghui Wang, +4 authors. Jin Yao. Published in Minerals …
Details
Heterocoagulation can occur between fine siderite and hematite particles, which would result in the low efficiency of their separation during the flotation process. To date, there have been no mature methods to increase their separation efficiency. In this paper, citric acid was used as a regulator to enhance the slurry dispersion efficiency. …
Details
Review of Flotation and Physical Separation of Rare Earth Element Minerals. August 2016. Conference: 4th UMaT Biennial International Mining and Mineral Conference. At: Tarkwa, Ghana. …
Details
Adsorption of sulphite, oleate and manganese (II) ions by β‐manganese dioxide and its activation in flotation. A high-grade ore sample A and a synthetic sample B of β-MnO2 were characterised by a number of physical methods. The points of zero zeta potential were found at pH4.4 and 4.6 for A and B,….
Details
Hematite and quartz minerals with high purity were purchased from the geological museum of China. Hematite was crushed, ground and wet-sieved to a size fraction of −0.074 mm +0.038 mm for the flotation tests.The quartz sample was crushed, ground in a porcelain ball mill, and wet-sieved in distilled water to accumulate the −0.074 …
Details
The results showed that the separation of hematite from silica sand by reverse flotation is possible and good selectivity can be achieved. Experimental data indicate that a larger amount of hematite can be removed from quartz in the presence of hydrochloric acid at …
Details
Sofol is a well-known crusher and grinding mill manufacturer that offers equipment and solutions for customers from aggregates, mining and mineral grinding industry.
You can leave your message here, we'll send you an Email immediately.
Online ChatCopyright ©2000- 2024 Shanghai Sofol CompanySitemap
PE series jaw crusher is usually used as primary crusher in quarry production lines, mineral ore crushing plants and powder making plants.
GET QUOTE