sulfate process in ilmenite

US Patent for Sulfate process Patent (Patent # 8,021,634 ...

A sulfate process for producing titania from a titaniferous material (such as an iron-containing titaniferous material such as ilmenite) is disclosed. The process includes digestion and/or leach steps that form a process solution that includes an acidic solution of titanyl sulfate (TiOSO4) and iron sulfate (FeSO4) from the solid titaniferous material.

Titanium Oxide or Titania Pigment by Ilmenite

Titanium dioxide or titania pigment is prepared commercially from ilmenite, an iron-titanium oxide mineral, by the sulfate process.Ilmenite is digested with H2SO4 to yield a titanium sulfate solution. Subsequently, the solution is hydrolyzed to yield a hydrous titania precipitate that …

Meide Group USA Inc. | SULFATE PROCESS

Sulfate process is one of the processes for producing Titanium Dioxide (Anatase and Rutile). For sulfate process, ilmenite (FeTiO3) has been used as a feedstock material. The inlet stream is reacted with concentrated sulfuric acid (H2SO4) to extract the converted Titanium Oxygen Sulfate (TiOSO4).

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.

Sulfate ilmenite shortage by 2018 without new projects: TZMI

Sep 19, 2016· China is expected to lead demand growth for sulfate ilmenite in the next few years for direct use in its sulfate process route dominated pigment sector and for smelting into slag for use in ...

(PDF) Leaching of ilmenite ores by acidic chloride solutions

Leaching of ilmenite ores by acidic chloride solutions. ... Leaching of ilmenite ores by acidic chloride solutions. ... which can be used to produce sulfuric acid required in the sulfate process ...

ILMENITE | VV Mineral, Mining Manufacturer

Ilmenite is a placer mineral found only in some parts of the world. It has a great demand for many industries for its utilities vary from pigment industry to steel industry. Over 96% of the world wide use of Ilmenite are in titanium dioxide TiO2 form that has a wide range of strategic applications.

Titanium dioxide - Wikipedia

Ilmenite is converted into pigment grade titanium dioxide via either the sulfate process or the chloride process. Both Sulfate and Chloride Processes produce the titanium dioxide pigment in the rutile crystal form, but the Sulfate Process can be adjusted to produce the anatase form. Anatase, being softer, is used in fiber and paper applications.

Ilmenite – Tronox

Sulphate-grade ilmenite can be further upgraded in a smelting process to produce titanium dioxide slag, or it can be used as a feedstock in the sulphate TiO 2 pigment production process. Chloride grade ilmenite can be upgraded to synthetic rutile or it can be used as a feedstock by some chloride TiO 2 pigment producers. All are used as ...

Tailoring TiO2 Treatment Chemistry To Achieve Desired ...

In the sulfate process, ilmenite or slag ore is reacted with sulfuric acid to produce a solution of titanyl sulfate. This solution is then settled to remove insoluble material. If ilmenite ore is used excess iron is removed from solution as ferrous sulfate, or copper as crystals.

Combined production of synthetic rutile in the sulfate ...

May 25, 2017· 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.

A Review of the Production Cycle of Titanium Dioxide Pigment

lyzed will treat about the beneficiation mining process of titanium mineral, and secondly, it will discuss the two main processes of the TiO 2 manufacturing (sulphate and chloride routes). In addi-tion, we will show different uses the titanium dioxide pigment as filler in paper, plastics and of ... a variety of ilmenite, and named the new ...

ELECTRO SMELTING OF ILMENITE FOR PRODUCTION OF …

Electro Smelting of Ilmenite for Production of Tio 2 Slag – Potential of India as a Global Player 827 in reduction of a portion of the Ti to Ti 2O3, which is less soluble in sulfuric acid and hence such slags are not suitable for the sulfate process pigment production.

Ilmenite - Cargo Handbook - the world's largest cargo ...

Sulfate process plants must utilise low-vanadium ilmenite, as vanadium is a penalty element. Titanium dioxide pigment can also be produced from higher titanium content feedstocks such as upgraded slag, rutile and leucoxene via a chloride acid process. Sulphate and chloride process pigment tends to be used for lower and higher quality ...

Application Note Titanium Dioxide - Sulfate Process

initial phases of the chloride process; however, it is used later on in downstream surface treatment of TiO 2. The sulfate process relies on sulfuric acid (H 2 SO 4) to leach titanium from ilmenite ore (FeTiO 3). The resulting reaction produces titanyl sulfate (TiOSO 4). A secondary hydroly-sis stage is used to break the titanyl sulfate into ...

processing of ilmenite ore - Mine Equipments

Ilmenite - Wikipedia, the free encyclopedia Sulfate and chloride process pigment tends to be used ... Most ilmenite ore production from Canada, South Africa ...

TiO2: Manufacture of Titanium Dioxide

How is pure titanium dioxide manufactured? Once the titanium containing ores have been mined, they need to be converted into pure titanium oxide. The two main production methods are the sulfate process and the chloride process. Sulphate Process In the sulfate process, ilmenite (FeTiO 3), a common iron/titanium oxide material, is used. It is

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

In the past, ilmenite has commercially been converted to TiO 2 via the sulphate process. High grade ilmenites are dissolved in concentrated sulphuric acid and first hydrolyzed to titanium oxide hydrates and then these hydrates are calcined to the anatase form of TiO 2.

Preparation of synthetic rutile via selective sulfation of ...

Its major steps include selectively sulfating ilmenite and targeted leaching of the impurities associated with ilmenite. The process of selectively sulfating ilmenite was realized via roasting ilmenite with ammonium sulfate at low temperatures, which is followed by selective thermal decomposition of the sulfated ilmenite at elevated temperatures.

Ilmenite - Wikipedia

Ilmenite can be converted into pigment grade titanium dioxide via either the sulfate process or the chloride process. Ilmenite can also be improved and purified to Rutile using the Becher process. Ilmenite ores can also be converted to liquid iron and a titanium rich slag using a smelting process.

A sustainable sulfate process to produce TiO2 pigments ...

A sustainable sulfate process to produce TiO2 pigments. ... The enhancement in leaching process of ilmenite residue after milling can be obtained with sulfuric acid. This result suggests that iron ...

Titanium dioxide - Essential Chemical Industry

Manufacture of titanium dioxide. There are two main processes, the Sulfate Process and the Chloride Process (Table 1) which use the two principal ores, ilmenite and rutile, respectively. Ilmenite contains 45-60% TiO 2 and rutile contains up to 99% TiO 2. The ores are mined worldwide but most production is in Australia and South Africa.

TITANIUM TETRACHLORIDE PRODUCTION BY THE …

TITANIUM TETRACHLORIDE PRODUCTION BY THE CHLORIDE ILMENITE PROCESS 1. Background and Purpose This document presents EPA's factual basis for proposing to withdraw a waste generated in the production of titanium tetrachloride by the chloride-ilmenite process from the RCRA Mining Waste Exclusion. The waste in question, titanium tetrachloride waste ...

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.

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

Titanium dioxide pigment is manufactured through either the sulfate, chloride, or chloride-ilmenite process. The sulfate process, used at only two U.S. plants, employs digestion of ilmenite ore or TiO 2-rich slag with sulfuric acid to produce a cake, which is purified and calcined to produce TiO 2 pigment. The sulfate process generates

WO2002087770A1 - Upgrading ilmenite for titania production ...

The present invention provides a process for upgrading a primary ilmenite containing gangue mineral grains for forming titania pigment by the sulfate method, the process including the step of: roasting a primary ilmenite containing gangue mineral grains at a temperature of less than 650 °C under conditions that promote the formation of a magnetically separable product rich in titania and in ...

Main Features of i-TiO2 Process:Increasing TiO2 Durability

In addition, raw materials used for the chloride process (chloride slag, natural rutile, synthetic rutile) are more expensive than raw materials used in the sulfate process (ilmenite). Knowing the peculiarities mentioned above, we couldn’t help but wonder what if we invent the technology that would enable:

TITANIUM DIOXIDE Chemical and Technical Assessment …

Sulfate process (Kirk-Othmer, 1997; Kirk-Othmer, 2006; DeMerlis, 2005) Both anatase and rutile grades of titanium dioxide can be produced by the sulfate process, depending on particular processing conditions. Briefly, ilmenite or ilmenite and titanium slag is digested with sulfuric acid and the product is diluted with water or dilute acid.

TITANIUM DIOXIDE Chemical and Technical Assessment First ...

Sulfate process (Kirk-Othmer, 1997; Kirk-Othmer, 2006; DeMerlis, 2005) Both anatase and rutile grades of titanium dioxide can be produced by the sulfate process, depending on particular processing conditions. Briefly, ilmenite or ilmenite and titanium slag is digested with sulfuric acid and the product is diluted with water or dilute acid.

US Patent Application for Sulfate Process Patent ...

Sep 06, 2007· A sulfate process for producing titania from a titaniferous material (such as an iron-containing titaniferous material; such as ilmenite) is disclosed. The process includes precipitating titanyl sulfate from a process solution produced in the process. The titanyl sulfate precipitation step includes subjecting the precipitated titanyl sulfate to a shearing action during the course of ...

Titanium Dioxide (TiO2) Production and Manufacturing Process

TiO2 is produced from either ilmenite, rutile or titanium slag. Titanium pigment is extracted by using either sulphuric acid (sulphate process) or chlorine (chloride route). The sulphate process employs simpler technology than the chloride route and can use lower grade, cheaper ores. However, it ...

Ilmenite | Wiki | Everipedia

Ilmenite is ultimately converted into pigment grade titanium dioxide via either the sulfate process or the chloride process. Sulfate process plants must utilise low- vanadium ilmenite, as vanadium is a penalty element. Titanium dioxide pigment can also be produced from higher titanium content feedstocks such as upgraded slag, rutile and leucoxene via a chloride acid process.

Manufacturing Process Of Titanium Dioxide - A4academics

Titanium dioxide may be coated with small amounts of alumina and silica to improve technological properties.Commercial titanium dioxide pigment is produced by either the sulfate process or the chloride process. The principal raw materials for manufacturing titanium dioxide include ilmenite.