Development of a Safe and Environmentally Friendly Sulfate Process …
The current research was aimed at developing a safe and more environmentally friendly sulfate process for the production of titanium oxide. In this process, to leach titanium from ilmenite by relatively dilute sulfuric acid (50 wt %), a two-step leaching scheme using a series of stirred tank reactor (STR) and vertical stirred …
Combined production of synthetic rutile in the sulfate TiO2 process …
Abstract. This paper describes a novel process for preparation of synthetic rutile using an intermediate, sulfated ilmenite from the sulfate TiO2 process as the feedstock. The synthetic rutile can be obtained by selective thermal decomposition of the sulfated ilmenite, followed by targeted leaching for removal of various impurities.
Combined production of synthetic rutile in the sulfate TiO2 process …
Abstract. This paper describes a novel process for preparation of synthetic rutile using an intermediate, sulfated ilmenite from the sulfate TiO 2 process as the feedstock. The synthetic rutile can be obtained by selective thermal decomposition of the sulfated ilmenite, followed by targeted leaching for removal of various impurities.
Optimized Ilmenite Leachate by Wet Mechanical …
The extraction of ilmenite minerals using the sulfate route is one of the commercial methods for producing titanium dioxide (TiO2) materials. The sulfate …
Preparation of TiO2 from ilmenite using sulfuric acid …
Graphical abstract. A new process of "mechanical activation–hydrochloric acid leaching–concentrated sulfuric acid decomposition–water leaching–separation of Fe …
Ilmenite
Where, R OC,0 and R OC are the capacity of ilmenite to transport oxygen, their values are R OC,0 = 3.3 wt.% and R OC = 4.0 wt.% (Abad et al., 2011).The kinetic parameters for both oxidation and reduction reactions taking place in the chemical-looping combustion process using ilmenite as an oxygen carrier obtained by Abad et al., 2011 was used.
(PDF) The Recovery of TiO2 from Ilmenite Ore by Ammonium Sulfate …
The results show that the optimum roasting conditions were a roasting temperature of 500 °C, a roasting time of 210 min, an ilmenite-to- (NH4)2SO4 mass ratio of 1:7, and an ilmenite particle size ...
Studying the Effectiveness of Synthetic Rutile Made from …
The process used for making titanium sponge and titanium compound is either the sulphate process, which consists of reaction of ilmenite ore with sulphuric acid or the chlorides process (Zhang et al. 2011), in which the formation of titanium tetra chloride takes place by the chlorination of ilmenite ore which further re-oxidise to form titanium ...
Technological scheme of the sulfate process for titanium …
Context in source publication. Context 1. ... sulfate method requires 4.0-4.5 t of sulfuric acid per metric ton of ilmenite concentrate (TiO 2 content 42%). Figure 2 shows the process scheme for ...
CHEMISTRY AND MINERALOGY OF TITANIA-RICH SLAGS. PART 1—HEMO-ILMENITE
Abstract. Titania-rich slags with 80 mass percent TiO 2 are produced in the electric arc furnaces of QIT-Fer & Titane, Inc., by the continuous smelting of hemo-ilmenite ore with anthracite coal. Titania slag represents an important feedstock for the manufacture of titanium dioxide pigment by the sulphate process.
A sustainable sulfate process to produce TiO 2 pigments
Titanium dioxide (TiO 2) is a widely used white pigment. TiO 2 production in 2006 was about 1,400,000 metric tons in the USA. The two major processes to manufacture TiO 2 are the chloride process and the sulfate process. Currently, the TiO 2 industry finds the waste generated in the chloride process less than the waste generated in the …
Nonhazardous Process for Extracting Pure Titanium Dioxide …
This is a clear indication for the formation of pure titanium dioxide from natural ilmenite from this process. This is the first report of obtaining pure, phase-specific titanium dioxide nanorods from natural ilmenite. ... Part 1. hemo-ilmenite, sulphate, and upgrading titanium slags. Miner. Process. Extr. Metall. Rev. 2007, 28, 1 ...
Combined production of synthetic rutile in the sulfate TiO 2 process …
Abstract. This paper describes a novel process for preparation of synthetic rutile using an intermediate, sulfated ilmenite from the sulfate TiO2 process as the feedstock. The synthetic rutile can ...
Methods of Extracting TiO2 and Other Related …
In the industrial production of TiO 2, the sulphate process and chloride process are the two common methods utilized for extracting TiO 2 from ilmenite and …
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Figure 1. Ilmenite Banten XRD Analysis -100+150 mesh (MS 31) 3.2. Characterization of Caustic Fusion and Acid Leach TiO 2 The extraction process of …
Chemistry and mineralogy of Titania-Rich slags. Part 1
Part 1 - Hemo-ilmenite, sulphate, and upgraded Titania slags. January 2007; ... Other process routes for the production of titanium oxide from the ore suffer from similar drawbacks. Therefore, the ...
Preparation of TiO2 from ilmenite using sulfuric acid
8, 10,11 Several processes based on the sulfate process for the production of TiO 2 pigment have been developed in the past few years. 12−15 Urakaev (2011) developed a waste ilmenite concentrate ...
Ilmenite
Panzhihua ilmenite, located in Sichuan province of southwest China, is the largest ilmenite reserve in the world, with an estimated reserve of 870 million tons.This deposit accounts for more than 90% of the total titanium resource of China and over 35% of the world. In the present processing flowsheet, the ore is first processed with wet low-intensity drum …
Ilmenite: An ore of titanium | Uses and Properties
Ilmenite is a black iron-titanium oxide with a chemical composition of FeTiO 3. Ilmenite is the primary ore of titanium, a metal needed to make a variety of high-performance alloys. Most of the ilmenite mined worldwide is used to manufacture titanium dioxide, TiO 2, an important pigment, whiting, and polishing abrasive. Heavy Mineral Sand ...
Intensification of Sulfuric Acid Leaching of Altered …
A new method of altered ilmenite processing has been studied. In this method, sulfuric acid is used as the reaction medium of the process, and fluoride ions …
Methods of Extracting TiO2 and Other Related Compounds from Ilmenite
In the industrial production of TiO 2, the sulphate process and chloride process are the two common methods utilized for extracting TiO 2 from ilmenite and rutile, respectively. 2.1. Sulphate Process. Statistical data reveal that 98% of manufacturers in China use the sulphate process for the production of TiO 2 [ 33 ].
Environmental impact of ilmenite from mines to …
2.2.3 Sulphate process ... Figure 14: A common ilmenite flow for combined OCAC and sulphate process for 1kg TiO2 production. The deactivated ilmenite is assumed to be …
Methods of Extracting TiO2 and Other Related Compounds from Ilmenite
In the industrial production of TiO2, the sulphate process and chloride process are the two common methods utilized for extracting TiO2 from ilmenite and rutile, respectively. 2.1. Sulphate Process Statistical data reveal that 98% of manufacturers in China use the sulphate process for the production of TiO2 [33].
A Review on the Recovery of Titanium Dioxide from Ilmenite Ores …
However, ilmenite concentrate obtained from this region is always used for preparing titanium dioxide by sulfate process due to its low titanium dioxide (TiO 2 ) grade and high contents of calcium ...
Leaching of ilmenite ores by acidic chloride solutions
The optimum conditions for leaching ilmenite in this study were found to be 5–7.5 M HCl solution with a total Cl − concentration of ~ 500 g/L, 3.3% (w/w) pulp density, 70–80 °C and 4–6 h of retention time. Under these conditions, the optimum leaching efficiencies were ~ 98–99% Ti and 96% Fe for ilmenite ore A and 94% Ti and 93% Fe ...
Preparation of titanium dioxide nanostructure from ilmenite through
The manufacturing methods for titanium pigments include the sulfate process (Mansoor et al. 2018) and the chloride process (Manuel et al. 2014). For the sulfate process, TiO 2 nanoparticles have ...
Sulfate digestion process for high purity TiO2 from titania …
A titania slag product of Rosetta ilmenite assaying 72% TiO2 is treated by the sulfate process option of the pigmentary TiO2 manufacture. The relevant factors of acid concentration, particle size, slag/acid ratio besides the reaction temperature, and time have been studied. After dissolving the cured mass in dilute acid and clarification, the …
Methods of Extracting TiO2 and Other Related Compounds from Ilmenite
The Pulmoddai mineral sand deposit in Sri Lanka is considered as a valuable resource containing pure ilmenite and can be used as a very good source of both titanium and iron. Because of the lower ...
The Recovery of TiO2 from Ilmenite Ore by …
TiO2 production is a key part of Ti metallurgy and Ti recycling, and the process itself has turned out to be energy-consuming and material-consuming. New …
Water Treatment Chemical Supply Chain Profile
Manufacturing Process. Deposits of titanium ores are found throughout the world, primarily in the form of ilmenite, but also less commonly as rutile and leucoxene. Ilmenite accounts for approximately 93% of worldwide titanium mineral production. Ilmenite, an iron oxide, typically contains between 40% and 65% titanium dioxide.