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WO2007046975A3 Titaniferous ore beneficiation Google

WO2007046975A3 PCT/US2006/035255 US2006035255W WO2007046975A3 WO 2007046975 A3 WO2007046975 A3 WO 2007046975A3 US 2006035255 W US2006035255 W US 2006035255W WO 2007046975 A3 WO2007046975 A3 WO 2007046975A3 Authority WO WIPO (PCT) Prior art keywords ore titaniferous ore ore beneficiation titaniferous leached Prior art date 2005-10-18 Application

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WO2008118527A1 Titaniferous ore beneficiation Google

This invention relates to a process for beneficiating a titaniferous ore. The process comprises calcining the titaniferous ore, at least one alkali or alkaline earth metal salt, and at least one alumina-containing material in the presence of oxygen to form a calcined ore mixture, then leaching the calcined ore mixture with a solution comprising ammonium. sodium or magnesium chloride in the

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WO2001000531A1 Processing titaniferous ore to titanium

A hydrometallurgical process is provided for producing pigment grade TiO2 from titaniferous mineral ores, and in particular from ilmenite ore. The ore is leached with a hydrochloric acid, preferably a recycled solution at high hydrochloric acid concentration, to form a leachate containing titanium and iron chloride and a residue. The leachate may be filtered to separate the leachate from the

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US Patent for Titaniferous ore beneficiation Patent

This invention relates to a process for beneficiating a titaniferous ore. The process comprises leaching the titaniferous ore with sulfuric acid to form a leached ore, calcining the leached ore in the presence of oxygen to form a calcined ore, and leaching the calcined ore with sulfuric acid, hydrochloric acid, and/or nitric acid to form a beneficiated ore.

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WO1993018191A1 Continuous leaching of treated

The continuous leaching of treated titaniferous ores with inter-stage evaporation. In particular, the invention forms a part of a process for the beneficiation of titaniferous ores to produce a product high in titanium dioxide, and low in other metal oxides, which is suitable for use as a pigment, or is suitable for the subsequent production by chlorination of titanium dioxide pigments, or for

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US Patent for Titaniferous ore beneficiation Patent

This invention relates to a process for beneficiating a titaniferous ore. The process comprises calcining the titaniferous ore, at least one alkali or alkaline earth metal salt, and at least one alumina-containing material in the presence of oxygen to form a calcined ore mixture, then leaching the calcined ore mixture with a solution comprising ammonium, sodium or magnesium chloride in the

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EP2139814A1 Titaniferous ore beneficiation Google Patents

EP2139814A1 EP08728434A EP08728434A EP2139814A1 EP 2139814 A1 EP2139814 A1 EP 2139814A1 EP 08728434 A EP08728434 A EP 08728434A EP 08728434 A EP08728434 A EP

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NZ237273A Upgrading titaniferous ore to produce a

titaniferous ore upgrading upgrading titaniferous Prior art date 1990-03-02 Application number NZ237273A Inventor Michael John Hollitt Ian Edward Grey Brian Anthony O'brien Original Assignee Wimmera Ind Minerals Pty Ltd Priority date (The priority date

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EP1941067A2 Titaniferous ore beneficiation Google Patents

This invention relates to a process for beneficiating a titaniferous ore. The process comprises leaching the titaniferous ore with sulfuric acid to form a leached ore, calcining the leached ore in the presence of oxygen to form a calcined ore, and leaching the calcined ore with sulfuric acid, hydrochloric acid, and/or nitric acid to form a beneficiated ore.

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NZ237273A Upgrading titaniferous ore to produce a

titaniferous ore upgrading titaniferous upgrading Prior art date 1990-03-02 Application number NZ237273A Other languages English (en) Inventor Michael John Hollitt Ian Edward Grey Brian Anthony O'brien Original Assignee Wimmera Ind Minerals Pty Ltd Priority date (The priority date is an assumption and is not a legal conclusion.

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US Patent for Processing titaniferous ore to titanium

A hydrometallurgical process is provided for producing pigment grade TiO2 from titaniferous mineral ores, and in particular from ilmenite ore. The ore is leached with a hydrochloric acid, preferably a recycled solution at high hydrochloric acid concentration, to form a leachate containing titanium and iron chloride and a residue. The leachate may be filtered to separate the leachate from the

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US Patent for Beneficiation of titaniferous ore with

Processes for the efficient and economical beneficiation of titaniferous ore are provided. A unique process for beneficiating ore comprising pretreatment of the ore by oxidation and reduction, followed by acid leaching with sulfuric acid has been developed. The acid used in this process may be recycled, which will thereby increase the efficiency of the process.

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(PDF) Processing of Titaniferous Magnetite Ores with the

It is known that the main part of iron ore raw materials in a wo rld i s processed according to the outline blast furnace converter. In 2015 in a world 1155 million tons of cast iron and 1623

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Production or Refining of Metals, Pretreatment of Raw

WO/1994/012675A1 BENEFICIATION OF TITANIFEROUS ORES A process for beneficiation of titaniferous ores is disclosed in which a titanium and iron-containing ore, such as ilmenite, is heated with potassium hydroxide, e.g. at temperatures of about 350-650 C and then the product is treated w WO/1994/008059A1

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Production or Refining of Metals, Pretreatment of Raw

PRETREATMENT OF REFRACTORY TITANIFEROUS ORES A process for increasing the solubility of titanium in oxidized titanium compounds, titaniferous ore, ore concentrate, or mixtures thereof. The process includes adding an iron compound to the titaniferous ore or ore concentrate, mixing t WO/2006/064350A1

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US Patent # 6,375,923. Processing titaniferous ore to

Processing titaniferous ore to titanium dioxide pigment Abstract. A hydrometallurgical process is provided for producing pigment grade TiO.sub.2 from titaniferous mineral ores, and in particular from ilmenite ore. The ore is leached with a hydrochloric acid, preferably a recycled solution at high hydrochloric acid concentration, to form a

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US Patent Application for Production of titania Patent

The term “titaniferous” material is understood herein to mean any titanium-containing material, including by way of example, ores, ore concentrates, and titaniferous slags. The present invention relates particularly to a process for producing titania from a solid titaniferous material that can be described in general terms as a sulfate process.

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titaniferous ore wo a

titaniferous ore wo a jkhealthcare. titaniferous iron ore beneficiation grinding mill equipment titaniferous iron ore rich in titanium by the thousands of tons Get . processing ilmenite wo a. titaniferous ore wo a grinding mill equipment. Leaching of ilmenite ores by acidic WO/1990/015162A1 PRE The process comprises introducing particles of an

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Production or Refining of Metals, Pretreatment of Raw

WO/2006/105613A1 IMPROVED METAL EXTRACTION A sulfate process for producing titania from a titaniferous material as disclosed. The process is characterized by a particular leach step for leaching titaniferous material. WO/2006/105614A1 IMPROVED TITANIUM PRECIPITATION PROCESS

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US Patent for Process for the recovery of titanium in

A process for leaching a value metal from a titanium-bearing ore material comprising the step of leaching the ore material at atmospheric pressure with a lixiviant comprising a chloride and hydrochloric acid is disclosed. The leaching conditions are such that titanium is leached and remains in solution. The temperature is maintained at less that 85° C., and the concentration of hydrochloric

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Production or Refining of Metals, Pretreatment of Raw

WO/1990/004656A1 REFINING OF ILMENITE BY REMOVAL OF EXCESS CHROMITE A process for increasing the particle size of fines of a titaniferous mineral containing more than 45 % by weight of titanium. The process comprises mixing the fines with a binding agent and water to produce an agglomerate. A reduced chromium-ore bearing powder used for

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TITANIFEROUS ORE BENEFICIATION MILLENNIUM INORGANIC

Mar 16, 2011· wo/1991/013180a: production of synthetic rutile: wo/1992/020827a: method for purifying tio2 ore: wo/1995/024510a: leaching of titaniferous materials: wo/2005/042405a: a process to obtain titanium concentrates with high contents of tio 2 and low contents of radionuclide elements from anatase mechanical concentrates: 3784670: 2002168310

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Production or Refining of Metals, Pretreatment of Raw

WO/2008/028244A1 A SULFATE PROCESS 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 in WO/2008/028245A1 A SULFATE PROCESS

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Production or Refining of Metals, Pretreatment of Raw

WO/2004/035843A1 PRODUCTION OF TITANIA A sulfate process for producing titania from a titaniferous material is disclosed. The process includes leaching the titaniferous material and producing a leach liquor, precipitating iron sulfate from the leach liquor, solvent extraction WO/2004/035873A1

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