The specifiion describes a process for producing synthetic rutile from a titaniferous ore or concentrate. The process involves three basic steps which are reduction, removal or iron by leaching or aeration and removal of other impurities by leaching in a solution of a strong mineral acid such as hydrochloric acid or sulphuric acid. The conditions of reduction are controlled to promote the ...
The Becher process is an industrial process used to produce rutile, a form of titanium dioxide, from the ore is competitive with the chloride process and the sulfate process, which achieve similar net conversions.. With the idealized formula FeTiO 3, ilmenite contains 5565% titanium dioxide, the rest being iron Becher process, like other beneficiation processes, aims to ...
Iron removing from titanium slag for ... The results demonstrate that hydrochloric acid dissolution of titanium slag and removing some impurities such as SiO2 and MgO provide a product with good quality is ... IBRAHIM, 2004. Reductive leaching of ilmenite ore in hydrochloric acid for preparation of synthetic rutile ...
Removal of Iron from Titanium Ore through Selective Keywords: ilmenite, titanium ore, selective chlorination, synthetic rutile, iron removal, titanium smelting 1. Introduction Titanium (Ti) is widely used in various fields because of its excellent properties such as high strength to density ratio and high corrosion resistance; in addition, titanium is the ninth get price
Commercial ilmenite upgrading processes, called synthetic rutile production, also require the removal of iron and other transition metals before chlorination. Synopsis Department of Chemical Engineering University of Pretoria ii A literature review of existing ilmenite upgrading processes revealed four possible process options that could remove iron from nitrided ilmenite. Two of these process ...
The claims defining the invention are as follows: 1. A process for recovering titanium as synthetic rutile from an ilmenite unsuited to the standard Becher process, including the steps of treating the ilmenite unsuited to the standard Becher process in a reducing atmosphere in the presence of a carbonaceous 5 reductant whereby to convert the ilmenite to reduced ilmenite in which iron oxides in ...
Rutile decomposition by sulfuric acid, including the formation of two salts, Ti(SO4)2/TiOSO4, is thermodynamically modelled. It is shown that TiO2 can spontaneously dissolve in H2SO4 solutions. However, titania is considered as an inert (ballast) phase component of titaniumcontaining raw materials due to the decelerated separate nature of such chemical transformations.
Iron is the most important impurity through the production of synthetic rutile. The removal of iron content by inorganic acids requires a high temperature and high concentration of acid. Therefore, the organic acids can be used as the iron removing agents. On .
· The company's first half highgrade rutile reference price was US1107/t and its commentary indied a 68% rise in the rutile and synthetic rutile prices is expected in the second half. Meanwhile,China's ilmenite is sufficient to supply its market and there is .
The results demonstrate that hydrochloric acid dissolution of titanium slag and removing some impurities such as SiO2 and MgO provide a product with good quality is prepared which is suitable as raw material for TiO2 pigment production through the chloride process.
Iron removing from titanium slag for synthetic rutile. The shortage of natural rutile and the need for higher grade titanium feedstocks has encouraged ilmenite upgrading by removing iron oxide and other impurities from the grain lattice, thus converting ilmenite into synthetic rutile for the chlorination process (ElHazek et al., 2007; Mahmoud et al. 2004; Lasheen, 2009).
Iron removing from titanium slag for synthetic rutile production 433. efficiency, the recovery of TiO 2 in the residue as titanium dioxide concentrate. decreases from 92% to % by increasing ...
Although rutile is scarcer and more expensive than ilmenite, it is more commonly used because it does not contain iron compounds and can therefore be more readily processed. However, ilmenite is sometimes processed to remove the iron and make 'synthetic' rutile.
· Rutile (TiO2) is a vital industrial material used in pigments and in many other valuable chemicals. A new production process to synthesize rutile from natural ilmenite ore and therefore overcome the environmental problems associated with conventional rutile extraction processes was developed. Because the simple phase separation of ilmenite (FeTiO3) into Fe2O3 and TiO2 occurs due .
IRON REMOVING FROM TITANIUM SLAG FOR SYNTHETIC RUTILE PRODUCTION Akbar MEHDILO, Mehdi IRANNAJAD Department of Mining and Metallurgical Eng., Amirkabir University of Technology, Tehran, Iran, iranajad, Phone:, Fax: Abstract. Leaching with ...
must, however, be upgraded by removing all iron before it can be sent for chlorination. Commercial ilmenite upgrading processes, called synthetic rutile production, also require the removal of iron and other transition metals before chlorination.
Secondly, the iron is drawn out as hydrated iron oxide from the synthetic rutile grains and a mild acid treatment is used to dissolve the impurities and any residual iron. The synthetic rutile grains are washed, filtered, dried and transported to white pigment manufacturing plants in .
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