US4085190A - Production of rutile from ilmenite - Google ...

A catalytic ilmenite reduction procedure is described which provides a magnetic fraction consisting of the iron and titanium values of the ilmenite ores and a non-magnetic gangue. The magnetic fraction, after solubilization of the reduced iron, provides beneficiated Rutile-type titania product with purity ranges from 80 to 95% depending on the grade of ilmenite starting material.

Recovery of TiO2 from ilmenite-type ore using an ...

Sep 18, 1979· An improved process is described for producing titanium dioxide from ilmenite-type ore. The ore is digested with aqueous hydrogen fluoride, the resulting liquid mixture treated with a water-soluble oxidizing agent, and the ferric iron impurities, in the resulting digestion solution, at a pH between about 1.0 and 6.0, are extracted out with a mono-or dialkyl, or mono- or di-(alkylphenyl ...

B. Generalized Proc ess Description

impurities. These proce sses can be organized in three categories: (1) Processes in which the iron in the ilmenite ore is completely reduced to metal and separated either chemically or physically; (2) Processes in which the iron is reduced to the f errous state and chemically leached from the ore; and

Ilmenite (FeTiO3), conc. - Registration Dossier - ECHA

EC number: 308-551-1 | CAS number: 98072-94-7 Natural ilmenite ore is concentrated by selective removal of impurities, chiefly iron, to yield a product enriched in titanium dioxide. The process consists of an optional oxidative roast followed by a reductive roasting stage, an acidic leaching stage and washing and drying the product.

US3734996A - Preparation of titanium dioxide concentrates ...

ilmenite, preferably after pre-oxidation, is reduced to convert iron oxide contained therein to iron, the illmenite is treated with nitrobenzene at about 20 to 100*c. and a ph of 3 to 7 oxidize the iron to iron oxide pigment which can be seprated in relatively pure form from the titanium dioxide concentrate. the concentrate is then preferably leached with acid to remove residual iron ...

(PDF) Leaching and kinetics studies on processing of Abu ...

The estimations of the reserves of ilmenite ore in Abu Acid leaching of ilmenite ore was carried out using 1000 cm3 Ghalaga area variable, ranging from 3 million tons three necked glass reactor provided with a reflux condenser (Holman,1956), Through 10 million ton (Moharram,1959), and a mechanical agitator with Teflon-coated stirring rod.

Pilot-Scale Demonstration of Ilmenite Processing Technology

impurities, such as magnesium oxide, in the crude ore and concentrate products. Previous research found that a large portion of the magnesium is associated with the chemical composition of the ilmenite and cannot be removed using conventional processing techniques. The purpose

Different Types of Iron Ore - Mineral Processing & Metallurgy

Impurities in Iron Ores. There are certain impurities that lower the value of iron ores or may even make them valueless. Sulphur in the ore goes partly into the iron and steel and makes them brittle. While it is possible by roasting the ore and by other means to remove the sulphur, the presence of any considerable amount is objectionable.

Ilmenite: Mineral information, data and localities.

Cr-rich Picroilmenite: A cromium- and magnesium-rich variety of ilmenite, containing up to 8.6% Cr2O3 and up to 17.0% MgO. Ferrian Ilmenite: Ilmenite containing up to 33% Fe2O3 in solid-solution in the rhombohedral series Fe2O3-FeTiO3.

Behavior of impurities in chlorination of reduced Murray ...

The primary impurities in Murray Basin ilmenite concentrate and their behavior in reduction under N2 were reported previously. This paper examines the behavior of key impurities in a typical Murray Basin ilmenite ore during carbothermal reduction/nitrodation in …

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 …

Impurities in Ilmenite: Magnesium - CORE

Abstract. The influence of Mg as main impurity in ilmenite during gaseous reduction with CO and H2 gas was studied in this work. This is of interest for the ilmenite pre-reduction step in the Tyssedal Process as where the impurities in ilmenite tend to give impact to the reduction rate.

Selective sulphidation of impurities in weathered ilmenite ...

Jun 01, 2018· A novel approach for the removal of chrome-bearing spinel impurities (chromite) from weathered ilmenite concentrates has been proposed. This involves a two-stage process where in Stage 1 the spinel impurities are subjected to selective surface sulphidation followed by physicochemical separation in Stage 2.

(PDF) Selective separation of rare earths and impurities ...

Selective separation of rare earths and impurities from ilmenite ore by addition of K+ and Al3+ ions Article (PDF Available) in Hydrometallurgy 95(s 3–4):254–261 · February 2009 with 322 Reads

Ilmenite smelting: the basics - SAIMM

ILMENITE SMELTING: THE BASICS 75 Basic reactions This paper briefly reviews the principles of the ilmenite smelting process. Ilmenite has the nominal composition FeO.TiO 2. South African beach-sand ilmenites are close to this nominal composition, with the main impurities being MnO, MgO, SiO 2 and Al 2O 3 (amounting to some 3% of the mass of the ...

Titanium Range? Breakthrough could lead to new kind of ...

May 26, 2017· A bucket of ilmenite from the Longnose deposit in northeast Minnesota. Researchers have developed a way to process a pure form of titanium dioxide from the ore…

1 J. Gambogi, Titanium and Titanium Dioxide, from Mineral ...

1 J. Gambogi, "Titanium and Titanium Dioxide," from Mineral Commodity Summaries, U.S. Bureau of Mines, January 1995, p. 180. ... in the ilmenite ore, producing gaseous ir on chlorides that are subsequently condensed in a spray condenser to form ... more effort is expended to remove impurities, particularly oxygen and carbon

(PDF) Determination of impurities in ilmenite ore and ...

Determination of impurities in ilmenite ore and residues after leaching with HCl-ethylene glycol by energy dispersive X-ray fluorescence (EDXRF) spectrometry. Hydrometallurgy, 1997. Sumpun Wongnawa. Download with Google Download with Facebook or download with email.

Ilmenite smelting: the basics T - SAIMM

Ilmenite smelting: the basics Constraints in ilmenite smelting Several constraints limit the operating ranges of ilmenite smelters. One of the major constraints is on the slag composition. The reason for this is that the chlorination process can handle only low levels of impurities (Table I), mainly because of the effect of impurities such as ...

Lunar Geology: Minerals on the Moon

These ilmenite grains average 53% TiO 2, 44% FeO, 2% MgO and 1% of various impurities. McKay and Williams note: "Although rutile [i.e., the mineral of pure TiO 2 found in some places on Earth] is more desirable, ilmenite is also considered to be a commercial ore for producing titanium. Dupont Corp., for example, has used ilmenite ores on a ...

Selective separation of rare earths and impurities from ...

ARTICLE I NFO A new technique for the selective separation of rare earth oxides and impurities from lower grade titaniferous ores has been developed. The process includes roasting the ore with alkali followed by aqueous leaching which liberates 80% of rare earth oxides from the mineral matrix. The removal of rare earth oxides from ilmenite ore was closely linked with additions of aluminium and ...

Isolation and Characterization of the Mineral Phases in ...

of impurity elements alters the original ilmenite [9]. The TiO 2 content can even exceed the 60% when the ore is altered to leucoxene, which is a mixture of rutile or anatase amorphous TiO 2 and iron oxides. In addition, ilmenite usually contains some impurities like monazites, spinel, quartz and zircon, as minority mineral [10].

Abu Ghalaga Ilmenite Ore Upgrading - Helals

As Abu Ghalaga ilmenite ore is analogous - when smelted - to the Canadian ilmenite ore, produced from the mines of Quebec Iron and Titanium (QIT) Inc., which is beneficiated and smelted at Sorel Tracy-Quebec, to produce titania slag with 80 mass percent TiO2, representing an important feedstock for the manufacture of TiO2 pigment by sulphate process.

Selective sulphidation of impurities in weathered ilmenite ...

Request PDF on ResearchGate | Selective sulphidation of impurities in weathered ilmenite. Part 1 – Applicability to different ilmenite deposits and simulated Becher kiln conditions | A novel ...

Ilmenite for pigment and metal production - oatext.com

Rutile is easy to process to titanium metal or TiO2 pigment by the chlorination method while ilmenite is more complicated because of its high iron content. Since the world reserves of titanium are 90% in the form of ilmenite and only 10% in the form of rutile, the treatment of ilmenite is evidently an important question in metallurgy [1,2].

Selective separation of rare earths and impurities from ...

Rare earth oxide in the ilmenite ore exists as a separate phase in a phosphorus matrix which is the monazite grain. 2. Selective separation of lanthanides, actinides and impurities were possible with oxidative alkali roasting process followed by water washing.

Chloride process - Wikipedia

The chloride process is used to separate titanium from its ores. In this process, the feedstock is treated at 1000 °C with carbon and chlorine gas, giving titanium tetrachloride.Typical is the conversion starting from the ore ilmenite:. 2 FeTiO 3 + 7 Cl 2 + 6 C → 2 TiCl 4 + 2 FeCl 3 + 6 CO. The process is a variant of a carbothermic reaction, which exploits the reducing power of carbon.

The Effect of Heat Treatment on Titania Slag

do not occur in ilmenite ores. After the slag is air quenched, it is crushed and ground to produce fine and coarse products [5 and 6]. These products are used in the downstream processing for the production of titanium dioxide pigment. The effect of heat treatment on Ti-slag was studied to understand the mechanism of upgrade

Pilot-Scale Demonstration of Ilmenite Processing …

Pilot-Scale Demonstration of Ilmenite Processing Technology UMD NRRI iii chloride leaching and solvent extraction system parameters for the ilmenite concentrate. The test program focused on the leach efficiency and extraction efficiency of the target elements; iron and titanium.

Ilmenite Ore - Galacticraft Wiki

Ilmenite Ore is an ore that can be found only on Asteroids. When mined it will drop a Titanium Shard and an Iron Shard which can be smelted and then used as a crafting ingredient for things such as tools, machines, and armor. It may also be mined using Silk Touch to give you a Ilmenite Ore block which can be smelted directly into a Titanium Ingot.