ilmenite flotation Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired Application number CA214,143A Other languages French (fr) Inventor Seitaro Fukushima Fukuzo Kaneko ...

Abstract： Considering the difficulties in the Panxi ilmenite flotation,such as the complex chemical properties in the solid-liquid interface,large consumption of reagents,as well as difficult flotation separation,this paper used kinds of modern testing coupled with analysis techniques,combining theoretical and experimental results to obtain the highly-efficient and …

Collectors are important for mineral flotation. In this work, a novel hydroxamic acid collector, i.e. sodium oleate hydroxamate (NaOLH), was synthesised and applied for ilmenite flotation. The collector was designed by constructing an oleic acid chain and hydroxamic acid group into the collector's molecular structure, based on the flotation mechanism of ilmenite.

Coffee grounds are the most significant production waste in the coffee industry and contain about 15% coffee oil. Coffee oil is rich in fatty acids and polyphenols, which have great application potential in the flotation of oxidized minerals. In this study, coffee oil as a green flotation collector for ilmenite was investigated by micro-flotation, zeta potential …

into ilmenite pulp as an effective method to improve ilmenite flotation recovery. Reverse flotation methods were applied for upgrading of massive ilmenite ore by …

Flotation has been an indispensable step for ilmenite upgrading as time goes and many collector types that can float ilmenite in different pH ranges have been developed.

The results of mechanical flotation based on optimized condition showed that the recovery and separation efficiency of irradiated ilmenite were improved up to 86.03% and 48.61%, respectively, indicating the positive effect of irradiation on ilmenite floatability.

The results of the flotation tests for a massive ilmenite ore sample indicated that, when the dosage of Pb (NO 3) 2 was 60 g/tonne, ilmenite recovery increased from 65% during conventional flotation to 83% during Pb (NO 3) 2 activated flotation. The ilmenite concentrate contained 36.6% TiO 2. Previous article Next article Keywords Oxides ores

Rutile may be separated from ilmenite or ilmenite ores by agitating a mixture of ilmenite and rutile in particle form in an aqueous solution containing a collection agent to which hydrogen peroxide has been added. The slurry in agitated form is treated with air to produce a froth. The ilmenite particles will attach themselves to the air bubbles in the froth and may be skimmed …

Collectors commonly have synergetic effects in ores flotation. In this work, a waste engine oil (WEO) was introduced as a collector to an ilmenite flotation system with sodium oleate (NaOL). The results show that the floatability of ilmenite was significantly improved by using WEO and NaOL as a combined collector. The recovery of ilmenite was enhanced …

ilmenite flotation system, in the hope of addressing the above-mentioned defects arising to some extent from fatty acid-based collectors. Its associated mechanisms were investigated by micro-flotation experiments, particle size analysis, Fourier-transform infrared (FT-IR) spectroscopy analysis and X-ray photoelectron spectroscopy (XPS) analyses. 2.

This invention relates to a method for recovering a bulk concentrate of zircon and a bulk concentrate of rutile-ilmenite from dry plant tailings. A process has been discovered for froth flotation by manipulating the surface charges of dry plant tailings. Conditioning reagents, sulfuric acid to lower the pH; corn starch to coat the minerals to be depressed; sodium fluoride to …

Small-scale flotation of ilmenite Four hydroxamates listed in Table 2 were employed as collectors in ilmenite flotation tests at dosages of 250 mg/L in the pH range from 2 to 12. MIBC as frother was used as required. Conditioning time (3 min) and flotation time (5 min) was kept constant. The experimental flowsheet is shown in Figure 1

The products from roughing (roughing ilmenite concentrate) were transferred into a 0.5 L flotation cell (XFD-type flotation apparatus); H 2 SO 4 (2000 g/t), PSSNa (150 g/t) were added in turn and the pulp is stirred 3 min, then the products were collected to complete the first cleaning; the remaining pulp in the flotation cell and ...

Ilmenite, as the main titanium source in practice, is of critical importance in meeting the pressing needs of various titanium associated fields. Herein, a review of ilmenite mineral processing by flotation is conducted to systemise the development of technologies in ilmenite upgrading.

As can be seen, flotation is frequently employed for ilmenite dressing, particularly for fine grained ores with low grade and complex mineralogy. However, solely flotation cannot be used to upgrade ores containing ilmenite, and in most cases, a pre-concentration process is needed prior to flotation.

In order to improve the separating index of ilmenite to separate the concentrate by high intensity magnetic separation, the Heishan iron ore in Chengde did some work. Separate the sulfide ore out by flotation under the conditions of concentration by weight in feed 32%, consumption of xanthate 200g/t and 2# oil 40g/t. Use sulfate to adjust the pH of the low sulphur product of …

Test results showed from table 4: flotation reco very of ilmenite was increased significantly without. magnetite influence, and compared with the proce ss of …

The flotation tests showed that BHA had good selectivity to ilmenite. In the DFT study, the favorable adsorption of BHA and oleate on the ilmenite surface were verified by the Mulliken population and the calculated interaction energies. Results indicated that the covalent bonds caused the adsorption of oleate on the ilmenite surface.

ilmenite concentrate flotation breeze acid titanyl sulfate Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Granted Application number CN2011104494577A Other languages Chinese (zh)

Ilmenite is an important raw material for space industry, nautical engineering and medicine. In this study, the effects of pH were investigated by …

Possibilities For All Flotation Treatment of Titanium Ore. To develop a flowsheet for separation of high grade titanium-rutile from ilmenite, that will meet market requirements. Rutile has a SG of 4.2, hardness 6.0 to 6.5 and is non-magnetic; while ilmenite has a SG of 4.5 to 5.0, hardness of 5.0 to 6.0, and is weakly magnetic.

The depression mechanism of PSSNa on titanaugite flotation was studied by electrokinetic potential and adsorbed amount measurements together with FTIR and XPS detection. Single mineral flotation experiments show that PSSNa is a selective depressant for the separation of ilmenite and titanaugite via flotation with NaOl as the collector.

As for ilmenite flotation, It was reported that the combination of sodium oleate and dodecylamine at the molar ratio of 10:1 could effectively separate ilmenite and titanaugite. The recovery of ilmenite was about 90%, while the recovery of titanaugite was less than 25% in the range of pH 5–7 (Tian et al., 2017b).

Ilmenite disseminated grain size is relatively fine, and it must be finely ground to fully separate ilmenite from gangue and then produce fine-grained minerals, which deteriorates flotation. A novel method using buoyant carriers to improve the recovery of fine ilmenite in froth flotation was introduced in this study.

2) Flotation of ilmenite by combination agents, for example, a combination of arsenic, lauric acid and sodium dodecyl benzene sulfonate in a certain ratio can significantly increase the ilmenite ...

Ilmenite showed good floatability at pH 6–8 (over 90% recovery) in the presence of Pb 2+ and SHA. In such conditions, the main lead species of Pb (OH) + and Pb 2+ acted as active sites and caused positive surface potential shifts, thereby increasing the adsorbed amounts of negatively charged SHA on the surface of the mineral.

Modification of the anionic flotation behaviour of ilmenite, magnetite, enstatite and anorthite. A. M. Abeidu. National Research Centre, Cairo, Egypt, and Ain Shams University, Cairo, Egypt ... The key process for the separation of ilmenite from magnetite and associated silicate gangue minerals such as enstatite and anorthite was found to be ...

The flotation characteristics of native ilmenite (IL-N) and beach placer ilmenite (IL-BP) with sodium oleate (NaOL) were investigated through micro-flotation tests, zeta-potential measurements, absorbed amount measurements, and Fourier transform infrared spectroscopic (FT-IR) analysis. The results show that IL-N can float well at the pH region of 4.5 to 7.5, …

Ilmenite is an essential mineral for the extraction of titanium. Conventional physical separation methods have difficulty recovering fine ilmenite, and dressing plants have begun applying flotation to recover ilmenite. The interaction of reagent groups with Ti and Fe sites on the ilmenite surface dramatically influences the ilmenite flotation.

A novel activation method for ilmenite in flotation was proposed. • KMnO 4 was used as a surfactant to change the valence state of Fe on ilmenite surface. • The active sites on the surface for interaction collector molecules were promoted. • Fe(Ⅲ) content greatly increased and sodium oleate readily interacted with the ferric iron.

The micro scale flotation experiments indicated that the ilmenite flotation recovery improves from 73.5% to almost 94% and 91% after pretreatment by …

The rutile and ilmenite sink product from the cleaner cells 40 is combined with the rutile and ilmenite sink product from the flotation cells 30 or it is returned to join the feed to the rougher cells. It is desirable in the flotation process that zircon be removed as the float product from an ilmenite/rutile sink product.