Welcome to our Mining equipment manufacturing base, Contact Us


Ilmenite mining process. Most ilmenite ore are poor ilmenite ore, so the ore processing must be carried out. Ilmenite ore beneficiation methods currently used for the mechanical selection (including washing, screening, re-election, high intensity magnetic separation and flotation), as well as fire enrichment, chemical processing method.


For comparison a standard froth flotation was optimized for LiAlO 2 and Melilite s.s. using sodium oleate (300 g/t) as the best collector resulting in …


The first one involves the surface modification of ilmenite, which is specifically reflected in oxidation roasting ( Mehdilo et al., 2014 ), agglomeration flotation ( Parapari et al., 2016 ), ultrasonic ( Shu et al., 2019, Wu et al., 2020 ), and microwave pre-treatment ( Fan et al., 2009, Luo et al., 2020 ).


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, …


Flotation of ilmenite -- Optimisation by factorial design technique Ilmenite is said to be floated with a combination of cationic and anionic collectors i.e. reagent 308 and Armac T at pH of 2.5 (McEwen et al., 1976).


Rosetta ilmenite, and reported that the optimum conditions consisted of using a Na2CO3/slag ratio of 0.55:1 and a roasting temperature of 850°C for 0.5 hour duration period. In the present investigation, the kinetic reactions associated with roasting of soda ash and ilmenite ore concentrate are evaluated. 2.Experimental work 2.1. Materials 2.1.1.


Get More Information

grinding of ilmenite

The use of equipment in ilmenite mining process. Ilmenite is a weakly magnetic titanium-iron oxide mineral which is iron-black or steel-gray. Most ilmenite is mined for titanium dioxide production.Ilmenite is a titanium bearing mineral that, directly or indirectly, supplies in excess of 90% of the feedstock to the large titanium dioxide pigment industry as well as to the very …


Coal mining processing plant in Nigeria. This coal mining project is an open pit mine located in Nigeria, announced by mining company - Western Goldfields - that it has discovered 62,400,000 tonnes of proven reserves of coal deposits worth US$1.2 billion which could be used for the generation of electric power...


Table 2. Chemical composition of roasting ilmenite with Na 2 S addition by XRF Content SO 3 Fe 2 O 3 Na 2 O TiO 2 SiO 2 MgO SnO 2 Level (%) 39,20 21,06 19,64 11,75 1,44 1,06 0,75 Chemical composition of roasting ilmenite with Na 2 S addition was conducted with XRF shown in Table 2. Increasing the Na 2 O and SO 3 content are influenced on Na 2


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.


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 …


(Merritt and Cranswick 1994), and because the ilmenite Fisher-White et al. (2007) used laboratory fluidised cannot be over-roasted, control of the roasting condi- bed reactors and temperatures between 600 and 800uC tions is much easier compared to the conditions for to roast Murray Basin strandline ilmenite concentrates which an ilmenite ...


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. To date, various surface modification methods have proven to be a research hotspot.


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 ...


Aeration is an effective method for increasing the available active sites, which can enhance the flotation of ilmenite. Meanwhile, Sysoliatin suggested that with constant addition of oleic acid, the recovery of ilmenite would be varied from 0 % to 100 % according to the amount of dissolved oxygen.


Essentially, microwave irradiation, oxidation roasting and ultrasonic pre-treatment can promote ilmenite flotation by oxidizing Fe 2+ on the ilmenite surface to Fe 3+ .


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. Hydrophobized glass bubbles (HGB) as carrier …


The ilmenite concentrate was found to have the following chemical assay: 38.9% TiO 2, 31.1% Total Fe, 6.4% SiO 2, 7.6% MgO, and 0.32% V 2 O 5 with an estimated weight recovery of 45.5% and a TiO 2 recovery of 71.3%. The beneficiation process


Under these conditions, the collector adsorption and hence ilmenite flotation improved, however the flotation recovery decreased after the roasting at 950 °C. View Show abstract


flotation improved, however the flotation recovery decreased after the roasting at 950 °C. Keywords: flotation, ilmenite, oxidation roasting, surface chemistry, zeta potential Introduction


Roasting Process The ilmenite, as mined, has a high Cr2O3 content and is not suitable for direct smelting to titania slag. Some of this Cr2O3 is removed at the mine when the ilmenite is passed through a magnetic separation step in which the highly susceptible Cr2O3-rich fraction of the ilmenite is removed. The remaining


Flotation technology of the recovery and utilization of ilmenite from tailings of iron beneficiated in Panzhihua was investigated based on mineralogical study. The results of mineralogical study show that the main occurrence of the …


IRANNAJAD M, MEHDILO A, NURI OS. Influence of microwave irradiation on ilmenite flotation behavior in the presence of different gangue minerals[J]. Separation & Purification Technology, 2014, 132(6): 401-412. Google Scholar [10] SAYILGAN A, AROL AI. Effect of carbonate alkalinity on flotation behavior of quartz[J].


Essentially, microwave irradiation, oxidation roasting and ultrasonic pre-treatment can promote ilmenite flotation by oxidizing Fe 2+ on the ilmenite surface to Fe 3+ . …


Abstract: China is rich in titanium resources,but most of them belong to the ilmenite with poor washability,so the research progress of flotation reagent and the mineral processing technology is summarized systematically in order to enhance the study on dressing process of ilmenite with low grade and fine particle size. In the aspect of the mineral processing technology,the …


Abstract – A 0.15 m ID CFB reactor has been constructed at Mintek for high-temperature pre-treatment of a wide range of particulate raw materials used in the metallurgical industry. Initial roasting tests were conducted with typical East Coast ilmenite concentrate at temperatures from 740° C to 800° C. Roasting under oxidising conditions resulted in a sixteen-fold increase in …


At the roasting temperatures of 750 °C and 950 °C, ilmenite was converted to rutile and some trivalent iron containing phases such as hematite and pseudobrookite. Under these conditions, the collector adsorption and hence ilmenite flotation improved, however the flotation recovery decreased after the roasting at 950 °C.


flotation operation can get good results at low cost. The total results of the flowsheet are: feed grade 12.12% TiO 2, ilmenite concentrate grade 47–48% TiO 2, recovery 44.79% TiO 2. Now The Panzhihua Ilmenite Processing Plant produces 150000 tonnes of 0.045mm ilmenite concentrate with average 47.5% TiO 2 each year. The TiO 2 overall


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 first one involves the surface modification of ilmenite, which is specifically reflected in oxidation roasting (Mehdilo et al., 2014), agglomeration flotation (Parapari et al., 2016), ultrasonic (Shu et al., 2019, Wu et al., 2020), and microwave …


We investigated the effects of ilmenite roasting temperature on the efficiency of iron oxide removal from the obtained residue by selective chlorination. Roasting-induced phase transformations were analyzed by x-ray diffraction measurements, and the phase composition of roasted residue was shown to be determined by process conditions. The highest iron oxide …


Under these conditions, the collector adsorption and hence ilmenite flotation improved, however the flotation recovery decreased after the roasting at 950 °C. View Show abstract


Carbonaceous gold ores are difficult to treat because of the "preg-robbing" by carbonaceous matters and locking by minerals. Roasting is the most commonly used method that is useful in dealing with carbonaceous gold ores. In this study, flotation gold concentrates containing sulfides and carbonaceous matters were investigated to ascertain the reaction …


4) Gravity-magnetic-flotation-electric combined separation method If the gangue in the raw ore is dominated by ilmenite and plagioclase, and contains sulfide minerals, it can be re selected first, cast off plagioclase, and then desulfurization by flotation method, and finally remove ilmenite by …


The effect of microwave irradiation and oxidation roasting (as a conventional heating method) on ilmenite surface properties and its flotation behavior were compared. This comparison was performed by carrying out micro and laboratory scales flotation tests, XPS, XRD, FTIR, SEM and microprobe analyses, zeta potential and contact angle measurements.


Lasheen [24] studied the process of soda ash roasting of titana slag product from Rosetta ilmenite, and re- ported that the optimum conditions used a Na 2CO 3/slag ratio of 0.55:1 and roasting temperature 850 for 0.5 ˚C hour duration period. In the present investigation, the kinetic reaction roasting of soda ash and ilmenite ore con-


At the roasting temperatures of 750 °C and 950 °C, ilmenite was converted to rutile and some trivalent iron containing phases such as hematite and …


A specific embodiment of this invention is found in a process for the separation of rutile and ilmenite from ilmenite leach tails which comprises subjecting said leach tails to a flotation treatment to separate gangue from said leach tails, thereafter subjecting the separated leach tails to a roast at a temperature in the range of from about ...