processing ilmenite wo1996024555a1
US4019898A
WO1996024555A1 (en) : PROCESSING ILMENITE ORE TO TiO2 PIGMENT DE2343344B2 (en) : Process for the extraction of pure titanium dioxide from titanium ores US4176159A (en) : Process for concentration of …
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A comparative study on the chloride effectiveness of synthetic rutile
To exclude reaction and influence of moisture during chlorination process, ilmenite and coke were first dried in a furnace at 150 °C for 24 h. A fluidized bed reactor(FBR) for chloride process ...
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Minerals | Free Full-Text | Sulfuric Acid Leaching of Altered Ilmenite
The kinetics of the sulfuric acid leaching of altered ilmenite, mechanisms, and process intensification methods were studied. The effect of changing the chemical composition during grinding was determined. The content of ilmenite and pseudorutile decreased from 5.3% to 3.1% and from 90.2% to 63.1%, respectively. Rutile increased …
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Solid-Phase Transformations of Titanomagnetite and Ilmenite …
Over time, the germs become larger. This process is successfully implemented at a higher sample holding time in the furnace. Ilmenite alters during solid-phase transformations in the Fe 2 TiO 5 –TiO 2 field with the formation of pseudobrookite and rutile (as solid solution extreme members) and pseudobrookite–rutile intermediate …
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Ilmenite Concentrate Properties and Processing Methods
Physicochemical and production properties of ilmenite concentrates are studied in order to determine the possibility of preparing from them the required titanium-containing industrial materials. Data are provided for ilmenite concentrate fraction, mineralogical, and thermographic analyses. Results of studying physicochemical …
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Ilmenite Sand Mining in Sri Lanka: Renewable Energy Also …
"At present we obtain 40,000 tons of ilmenite each year. This fetches $240 per ton on the international market. At present approximately 40,000 tons ilmenite, 25000 tons rutile and 1200 tons zircon are produced," said Mr. Gnaneswaran, the Acting General Manager of the Pulmoddai Ilmenite Factory, who has been in service there for 30 years.
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US2954278A
US2954278A US637349A US63734957A US2954278A US 2954278 A US2954278 A US 2954278A US 637349 A US637349 A US 637349A US 63734957 A US63734957 A US 63734957A US 2954278 A US2954278 A US 2954278A Authority US United States Prior art keywords rutile ilmenite sulphur iron grains Prior art date Legal status (The …
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KINETICS OF ALKALINE LEACHING PROCESS OF …
hydrothermal treatment of ilmenite has been carried out with the appropriate alkali solution at a temperature of 393 K, and the obtained ilmenite paste is subjected to acid leaching during the second stage. The obtained product is used as a U(VI) sorbent. The authors during processing ilmenite of the Rosetta coast (Egypt) used a fusion reaction ...
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Methods of Extracting TiO2
the economy of the country. Ilmenite can be obtained from the black sand through various techniques utilized during the ore processing, including magnetic separation, floating separation and electrostatic separation [18,22], where the ore material is majorly composed of 75% ilmenite, 10% rutile, 8% zircon and trace amounts of other …
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Acid/microwave leaching of titanium ore and then flotation to …
WO1996024555A1: : PROCESSING ILMENITE ORE TO TiO2 PIGMENT: Primary Examiner: BOS, STEVEN J . Attorney, Agent or Firm: Klauber & Jackson (Hackensack, NJ, US) Claims: The claims defining the invention are as follows: 1. A process for extracting and producing a high-grade titanium oxide from a titanium …
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PROCESSING OF ILMENITE (FeOTiO 2 ) FOR VALUE …
PROCESSING OF ILMENITE (FeOTiO 2 ) FOR VALUE ADDED PRODUCTS. Conference: 26th International Mineral …
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Minerals, slags, and other feedstock for the production of titanium
That process, which is often misspelt as "Benelite," was developed in the United States in the 1970s, but it is now used by few, relatively small plants in India. In the Benilite process (Fig. 3.11), ilmenite is reduced with heavy oil to 80%–95% ferrous iron in a rotary kiln at about 850°C. The reduced ilmenite is subjected to pressure ...
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Heavy Minerals Recovery from Sand & Gravel
Results of samples from the coastal area are shown in table 3. The HM content ranged from 0.4 to 7.6 wt-pct. The major heavy minerals in the samples were magnetite, less than 1 to 21 lb/ton, and ilmenite, 1 to 50 lb/ton. Gold ranged from a trace to 0.0018 oz/ton, and silver from a trace to 0.0087 oz/ton.
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Improving the production efficiency of high-titania slag in Ti
We investigated the carbothermic reduction process of ilmenite ore at 1873 K with flux addition. Without flux, the pseudobrookite phase with a high melting temperature was precipitated during ...
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Production of synthetic rutile from tin ore beneficiation
This paper examines the effectiveness of the method for producing synthetic rutile from ilmenite through pre-oxidation and reductive leaching of pre-oxidized ilmenite …
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Separation of Ilmenite from Vanadium Titanomagnetite by …
flotation process has become the mainstream process for ilmenite separation at present, and numerous research works have been carried out regarding ilmenite surface activation, gangue mineral inhibition, and flotation agent optimization and modification (see Table1). Table 1. Summary of previous results on ilmenite flotation.
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A review of mineral processing of ilmenite by flotation
A review of minerals processing technology used to upgrade titanium minerals, e.g. ilmenite and rutile, is a fundamental step to deepen the insights into their upgrading and will be beneficial to promote technical innovation in the long run. The current paper thus aims to review the minerals processing technology of ilmenite by flotation ...
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Minerals | Free Full-Text | Separation Analysis of New Magnetic …
To achieve the utilization of fine ilmenite (especially −0.075 mm) produced in the titanium-magnetite processing plant in Panzhihua, a radial turbulent outer-cylinder magnetic separator (RTOCMS), was developed in this study. After optimizing the conditions of rotation speed and water flow, an RTOCMS concentrate with TiO2 grade of 22.84% …
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Production of synthetic rutile from tin ore beneficiation
The objective of the pre-oxidation process is to convert the ilmenite into rutile (TiO 2) and hematite (Fe 2 O 3), while minimizing the formation of pseudobrookite (Fe 2 TiO 5). At the leaching ...
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Processing aqueous titanium chloride solutions to ultrafine …
Process for the production of intermediates useful in the processing of ilmenite and related minerals: : O'Donnell et al. 5441712: Hydrometallurgical process for producing zinc oxide: : Duyvesteyn et al. ... WO1996024555A1: : PROCESSING ILMENITE ORE TO TiO2 PIGMENT: WO1997010185A1: :
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ilmenite processing concentration
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Selectivity of Benzyl Hydroxamic Acid in the Flotation of Ilmenite
The calculation process for surfaces (1 1 −6), (0 1 2), (0 2 4), and (3 0 0) did not converge, which indicated that the types of atom exposed on the crystal surfaces were unlikely to exist, while the surfaces (1 0 4) with surface energy of 0.509 J·m −2 and (1 1 0) with 1.149 J·m −2 converged to a stable surface slab. The surface energy of (1 0 4) was …
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Electron Microscopic Studies of Ilmenite from the Chhatrapur
Ilmenite from the Chhatrapur coast, Odisha, India, was studied using optical microscope, X-ray diffraction, particle size analysis, and electron microprobe to decipher their micromorphology, texture(s), and elemental composition. The micromorphological features by electron microscope indicate that weathering processes such as mechanical …
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Microstructure and Chemical Transformation of Natural Ilmenite …
Ilmenite is a vital raw material for the production of metal titanium and titanium-containing materials. In this paper, microstructure and chemical transformation of natural ilmenite in air atmosphere were investigated by the analysis of XRF, X-ray diffractometer, and SEM-EDS. Results showed that the untreated ilmenite had three …
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Separations | Free Full-Text | Process Mineralogy of Vanadium
After decades of development of the vanadium titanomagnetite (VTM) ore in the Panzhihua district changes have taken place to the ore characteristics. In addition, preliminary research carried out in this area mainly focused on the separation and extraction of iron resources and lacked a systematic research focus on the process mineralogy of …
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Improving the production efficiency of high-titania slag in …
Alkali roasting of the ilmenite process, which is a pre-treatment of the hydrometallurgical process for obtaining high titanium yields, has been studied by several groups. Sodium and...
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Activation Mechanism of Lead(II) to Ilmenite Flotation Using
In this study, salicylhydroxamic acid (SHA), which exhibits superior flotation performance to conventional collector benzohydroxamic acid (BHA), was first introduced in ilmenite flotation. The addition of lead(II) can significantly increase the recovery of ilmenite using SHA as collector. Thus, the adsorption mechanism of SHA on lead(II)-activated …
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The Recovery of TiO2 from Ilmenite Ore by Ammonium …
The sulphate process was the first commercial process for producing titanium pigment from ilmenite. In this process [ 20, 21 ], sulfuric acid is combined with …
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Separations | Free Full-Text | Separation of Ilmenite …
Vanadium titanomagnetite (VTM) is an important mineral for developing titanium resources, but the comprehensive recovery of ilmenite separation is extremely poor, resulting in the low-efficiency utilization of …
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A detailed assessment of global Zr and Ti production
SR TiO 2 content ranges from 85 to 96%, or more commonly 90–95% (Gilman and Taylor 2001), and is suitable for chloride pigment production or titanium metal production; Iluka is currently undertaking research into possible production of acid-soluble SR, which would be suitable for sulfate pigment production.. Chloride grade ilmenite is …
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