| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 423069000 | Group IVB metal (Ti, Zr, or Hf) | 39 |
| 20100129278 | Continuous Process for Producing Titanium Tetrachloride Using On-Line Monitoring of Vanadium Oxytrichloride (VolcL3) With Anti-Fouling Management - An improved continuous process for producing titanium tetrachloride having a vanadium content of less than 5 ppm using on-line monitoring of vanadium oxytrichloride in crude titanium tetrachloride with effective anti-fouling management of precipitated niobium oxytrichloride. | 05-27-2010 |
| 20110182787 | METHOD FOR PRODUCING TITANIUM TETRACHLORIDE BY USING LOW-GRADE TITANIUM MATERIAL - The invention provides a method for producing titanium tetrachloride by using a low grade titanium material, and belongs to the chemical field. The technical problem to be solved is to provide a method for producing titanium tetrachloride by using a low grade titanium material capable of continuous industrialized production. The method is characterized in that the low grade titanium material containing a certain proportion of titanium carbide is caused to directly react with chlorine at 600-700° to produce the titanium tetrachloride. Long-time continuous and stable operation can be realized by using the process parameters of the method, and chlorination rate of the titanium carbide in the titanium material reaches above 90%, so that the titanium material can be better used for producing the titanium tetrachloride. | 07-28-2011 |
| 20130280149 | Purification of Titanium Tetrachloride - Disclosed is a process/system for the removal of metal chloride impurities from a titanium tetrachloride stream. The metal chloride impurities are removed through contact of the titanium tetrachloride stream with a sorbent material comprising a member selected from the group consisting of an alumino-silicate, activated alumina, ultrafine TiO2, and combinations thereof. | 10-24-2013 |
| 20130302227 | PURIFICATION OF TiCl4 THROUGH THE PRODUCTION OF NEW CO-PRODUCTS - The present disclosure relates to reacting tin metal with crude TiCl | 11-14-2013 |
| 20130302228 | PURIFICATION OF TiCl4 THROUGH THE PRODUCTION OF NEW CO-PRODUCTS - The present disclosure relates to reacting tin metal with crude TiCl | 11-14-2013 |
| 20130309152 | REGENERATING A TITANIUM SILICALITE CATALYST - Embodiments of the present disclosure include a process for regenerating a titanium silicalite catalyst by contacting the fouled titanium silicalite catalyst with a regeneration solution that includes at least one oxidizing agent. | 11-21-2013 |
| 20130330256 | RECYCLE OF TITANIUM DIBORIDE MATERIALS - A method to recycle TiB2 articles, and in particular, a method to recycle a TiB2 feedstock including TiB2 articles and Ti-ore and/or Ti-slag by chlorination. | 12-12-2013 |
| 20140023573 | PROCESS FOR CONTROLLING CARBONYL SULFIDE PRODUCED DURING CHLORINATION OF ORES - The present invention provides for a process for handling carbonyl sulfide waste and waste metal halides produced in industrial processes and, more particularly chlorination processes. The process includes the steps of hydrolyzing the carbonyl sulfide to produce a waste stream containing hydrogen sulfide and sulfidizing the resulting hydrogen sulfide containing stream with a solution of the waste metal halides. The resulting metal sulfide and metal halide-containing stream can be neutralized before disposal of the produced waste solids. | 01-23-2014 |
| 20160052795 | RECYCLE OF TITANIUM DIBORIDE MATERIALS - A method to recycle TiB2 articles, and in particular, a method to recycle a TiB2 feedstock including TiB2 articles and Ti-ore and/or Ti-slag by chlorination. | 02-25-2016 |
| 20160130154 | PROCESS FOR THE EXTRACTION, FROM BAUXITE, FROM RED MUD RESULTING FROM THE PROCESSING OF BAUXITE, AND FROM CHEMICALLY SIMILAR MATERIALS, OF PRODUCTS OF INDUSTRIAL INTEREST, SEPARATED FROM EACH OTHER - The subject of the invention is a process for the extraction, from bauxite, from red mud resulting from the processing of bauxite, and from chemically similar materials, of products of industrial interest, like sodium, iron, gallium, aluminum, titanium and silicon, separated from each other in chloride form. | 05-12-2016 |
| 423070000 | Ion exchanging or liquid-liquid extracting | 5 |
| 20090185965 | Method for separating zirconium and hafnium - A method for separating zirconium and hafnium from a mixture of ZrCl | 07-23-2009 |
| 20130177488 | PROCESS FOR SEPARATING ZIRCONIUM AND HAFNIUM TETRACHLORIDES FROM MIXTURES - A simple, inexpensive and non-corrosive industrial separation method making it possible to separate zirconium and hafnium tetrachlorides from mixtures thereof, a simple industrial method allowing the zirconium/hafnium separation, and a method making it possible to produce fractions enriched with zirconium and containing hafnium at a trace level are disclosed. | 07-11-2013 |
| 20130259777 | TRIBUTYL PHOSPHATE-NITRATE SOLVENT EXTRACTION PROCESS FOR PRODUCING HIGH PURITY NUCLEAR GRADE RARE EARTH METAL OXIDES - A process for the preparation of high purity rare earth metal compounds such as oxides utilizing TBP (tri-butyl phosphate)-nitrate solvent extraction technique adapted to manufacture nuclear grade rare earth metal compounds such as zirconium oxide. The process substantially aids in reducing the specific generation of ammonium nitrate effluent volume thereby increasing its concentration when the effluent comprising ammonium nitrate and ammonium sulphate are utilized for stripping of the rare earth metal compound from the organic solvent in the said process of production of high purity rare earth metal oxide powder. | 10-03-2013 |
| 20140219891 | SEPARATION METHOD OF ZIRCONIUM AND HAFNIUM BY SOLVENT EXTRACTION PROCESS - A separation method of zirconium and hafnium is described which includes an extraction process of agitating an undiluted aqueous solution containing zirconium, hafnium, and sulfuric acid with a first stirring solution containing an acidic extractant to produce a first extract solution in which the hafnium is extracted by the acidic extractant; and a recovery process of agitating the first extract solution with a second stirring solution containing a citric acid solution to produce a citric acid solution after extraction in which zirconium is reverse-extracted from the first extract solution to the citric acid solution so as to recover zirconium contained in the first extract solution. The method may reduce the amount of extractant while greatly enhancing the separation effect of zirconium and hafnium, and increase zirconium recovery rate by more than 97% through an additional zirconium recovery process while reducing a hafnium content in zirconium by less than 50 ppm. | 08-07-2014 |
| 20150367055 | METHOD OF ZIRCONIUM PHOSPHATE RECHARGING - Methods and related apparatuses for sorbent recharging are provided. The methods and related apparatuses for recharging can recharge a specific rechargeable layer of a sorbent material such as zirconium phosphate in a sorbent cartridge. The methods and apparatuses include passing solutions containing combinations of acids, bases and salts through a module containing a rechargeable sorbent material such as zirconium phosphate in order to replace ions bound to the zirconium phosphate with hydrogen and sodium ions. The method allows for a customizable zirconium phosphate, with control over the ratios of sodium to hydrogen on the recharged zirconium phosphate. | 12-24-2015 |
| 423073000 | Separating Group IVB metals from each other | 1 |
| 20090117018 | Process for the Separation and Purification of Hafnium and Zirconium - A process for the separation and purification of hafnium and zirconium. | 05-07-2009 |
| 423074000 | Utilizing fluidized bed | 2 |
| 20090148363 | Production of Titanium Tetrachloride Using Fluidized Bed Reactor - The invention is directed to a process for the production of TiCl4, in particular to such a process carried out using a fluidized bed process. According to the present invention there is provided a process for the production of TiCl4, which process comprises the steps of: —feeding TiO2 containing ore and coke to a fluidized bed chlorinator; —the assessment of total gas flow entering said chlorinator; —the measurement of the pressure drop inside said fluidized bed for a known height, the pressure drop across said fluidized bed and relating this to the composition of the fluidized bed. —the measurement of the CO:CO2 ratio of the gas flow leaving said fluidized bed chlorinator and relating this to the composition of the fluidized bed—calculating set points for said TiO2 containing ore and coke feed and adjusting said TiO2 and coke feed accordingly. | 06-11-2009 |
| 20090148364 | Method for Increasing the Yield When Chlorinating Titaniferous Raw Materials - A method for reprocessing cyclone dust occurring during the carbochlorination of titaniferous raw materials, which essentially consists of titanium dioxide, coke and other inert metal oxides, such as silicon dioxide, and for returning a coke-rich and/or a TiO | 06-11-2009 |
| 423080000 | Chemically converting for physical solid-solid separation | 1 |
| 20080286181 | Process for Enrichment of Anatase Mechanical Concentrates in Order to Obtain Synthetic Rutile with Low Contents of Rare Earth and Radioactive Elements - The present invention relates to a process for obtaining synthetic rutile with low contents of rare earth and radioactive elements from anatase mechanical concentrates, comprising the following sequential operations: calcination (1) of the anatase concentrate in a fluidized bed or rotary kiln, at a temperature between 400° C. and 600° C., during a period of time from 15 to 60 minutes, wherein hydrated iron oxides are converted into hematite after hydration water is removed, providing a reduction in the time required for next step; reduction (2) of the calcined product, in a fluidized bed or rotary kiln, at a temperature between 400° C. and 600° C., during a period of time from 5 to 30 minutes, using hydrogen, natural gas or any carbon based reducing agent such as metallurgical coke, charcoal, petroleum coke, graphite, among others, the result of which is the trans-formation of hematite into magnetite; dry or wet low-intensity magnetic separation (3) of the reduced product, in permanent magnet and drum magnetic separators, the magnetic field ranging between 600 and 800 Gauss, in which the magnetic fraction generated in the reduction step is discarded; high-intensity, high-gradient magnetic separation (4) of the low-intensity non-magnetic fraction, in rare-earth permanent magnet, either roll or drum, separators with magnetic field intensity ranging from 10000 to 15000 Gauss, extracting silicates, secondary phosphates, monazite, calzirtite, zircolinite and uranium and thorium-containing minerals; leaching (5) of the magnetic fraction of the high-intensity, high-gradient separation in agitated tanks or fluidized bed columns, with a solution of 20-25% w/w HCl, a solid-liquid ratio of 1/2 w/w, a temperature between 90° C. and 107° C., for a residence time in the leaching from 2 (two) to 4 (four) hours, providing solubilization of impurities rich in iron, aluminium, phosphates, magnesium, barium, calcium, strontium, rare earths, uranium and thorium; filtering of the leached product in a belt filter; drying of the filtered product in a rotary or fluidized bed drier; oxidation (6) of the dried product in a rotary kiln or fluidized bed reactor, at a temperature ranging 900° C. and 1200° C., in the presence of a mixture of the following substances: alkali metal sulphates (mainly lithium, sodium and potassium), alkali metal carbonates (mainly lithium, sodium and potassium), phosphoric acid (H | 11-20-2008 |
| 423081000 | Treating with nitrogen or nitrogenous compound | 6 |
| 20080241026 | Titaniferous ore beneficiation - 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 presence of oxygen to form a leached ore mixture, and contacting the leached ore with an acid to form a beneficiated ore. | 10-02-2008 |
| 20100034714 | PROCESSES FOR PRODUCING TITANIUM DIOXIDE - Provided are processes for the production of titanium dioxide from ilmenite. In these processes, ilmenite is digested with aqueous trimethylammonium hydrogen oxalate. Iron from the ilmenite precipitates as a hydrated iron oxalate and is removed by filtering, leaving a titanium-rich solution. The titanium-rich solution can be further processed to form titanium dioxide. | 02-11-2010 |
| 20100322831 | METHOD FOR THE PRODUCTION OF METAL PRODUCTS - The invention provides a method for the Industrial purification of a low-grade polyvalent cation feed stream of purity P1, by the formation of a polyvalent cation-double-salt precipitate of purity P2 and a polyvalent cation solution with purity P3, wherein P2>P1>P3, said method comprising the steps of: a) forming, from said feed, a medium comprising water, polyvalent cation, a cation selected from the group consisting of ammonium, cations of alkali metals, protons and a combination thereof, and anions; which formed medium is further characterized by the presence of (i) a double-salt precipitate comprising a polyvalent cation, at least one of said cations and at least one of said anions; and (ii) a polyvalent cation solution; and wherein the concentration of said anions is higher then 10% and the ratio between the concentrations of said cation to said anion in said polyvalent cation solution is within Zone DS as herein defined; and b) separating at least a portion of said precipitate from said solution. | 12-23-2010 |
| 20130266494 | UPGRADING OF TITANIFEROUS MATERIAL - A method of upgrading a titaniferous material includes nitriding and reducing a titaniferous material which includes TiO | 10-10-2013 |
| 20150307956 | METHOD OF EXTRACTING METAL IONS FROM RED MUD BY SONICATION - A method of effectively extracting metal ions by sonication from red med that is waste remaining after extracting aluminum from bauxite. The method includes: (a) introducing, into a reactor placed in a constant-temperature tank, (1) a neutralized red mud slurry and an acidic solution or (2) red mud slurry, distilled water and an acidic solution, to form a red mud slurry, and heating the constant-temperature tank to allow the red mud slurry to react while sonicating the red mud slurry, thereby extracting metal ions from the red mud; and (b) filtering a product resulting from step (a) to provide a filtrate and a red mud residue, and separating and recovering the filtrate and the red mud residue, wherein the sonication in step (a) is performed using an ultrasonic generator by applying ultrasonic waves to an ultrasonic tip placed in the constant-temperature tank. | 10-29-2015 |
| 20160152485 | PROCESS AND PLANT FOR PURIFYING RED MUD | 06-02-2016 |
| 423082000 | Treating with sulfur or halogen containing acid | 9 |
| 20100086454 | PROCESS FOR RECOVERING TITANIUM DIOXIDE - An improved process for recovering a titanium dioxide product from a titanium oxide-containing roasted mass of the type derived from roasting an ilmenite, anatase or perovskite ore by exploiting an organic acid, such as mixture of oxalic acid and ascorbic acid. | 04-08-2010 |
| 20130022521 | SYNTHETIC RUTILE PROCESS B - A process for recovering titanium as synthetic rutile from a titaniferous ore, for example a secondary ilmenite, includes the steps of treating the ore in a reducing atmosphere at elevated temperature above 1075° C. in the presence of a carbonaceous reductant whereby to convert the ilmenite to reduced ilmenite in which iron oxides in the ilmenite have been reduced to metallic iron, and separating out the metallic iron so as to obtain a synthetic rutile product. The carbonaceous reductant comprises a coal selected for a moisture content below 40%, a volatiles content greater than 30%, ash content below 10%, and a gasification reactivity that results in an increased rate of reduction of iron oxides and titanium species effective to achieve a TiO2 content of 90% or greater in the synthetic rutile product. | 01-24-2013 |
| 20140334994 | ZIRCON COMPONENTS - A zircon body for use in glass manufacturing is provided containing zircon grains and an intergranular phase present between the zircon grains The intergranular phase may contain silicon oxide. The body may be exposed to a halide to at least partially remove at least a majority of the silicon oxide contained in the intergranular phase from the outer portion or to at least partially remove the intergranular phase along an outer portion of the component. | 11-13-2014 |
| 20140369907 | PROCESSES FOR TREATING RED MUD - There are provided processes for treating red mud. For example, the processes can comprise leaching red mud with HCl so as to obtain a leachate comprising ions of a first metal (for example aluminum) and a solid, and separating said solid from said leachate. Several other metals can be extracted from the leachate (Fe, Ni, Co, Mg, rare earth elements, rare metals, etc.). Various other components can be extracted from solid such as TiO | 12-18-2014 |
| 20150315677 | Process for the separation of iron in extraction of titanium in mixed chloride media - A process for leaching a value metal from a titaniferous ore material comprising the step of leaching the ore material at atmospheric pressure with a lixiviant comprising magnesium chloride and hydrochloric acid is disclosed. Iron and titanium are leached into solution. Iron in the ferric state may be separated from titanium in solution using extraction with alkyl ketone. More effective separation of titanium with lower contamination with iron is obtained. | 11-05-2015 |
| 20220135425 | Method for Co-Producing Synthetical Rutile and Polymeric Ferric Sulfate with Waste Sulfuric Acid - The present disclosure discloses a method for co-producing synthetical rutile and polymeric ferric sulfate with waste sulfuric acid, which includes the following steps of: S | 05-05-2022 |
| 423083000 | Forming metallic iron or insoluble iron containing compound | 3 |
| 20090252662 | Process for purifying inorganic materials - The invention relates to a process for purifying inorganic materials by treating the materials with a solution of hydrogen fluoride in aqueous hydrofluorosilicic acid. The process involves treating an inorganic material containing at least two species, to at least partially separate a first species contained in the material from a second species contained in the material, and comprises treating the material with a fluorine acid solution comprising aqueous hydrofluorosilicic acid and hydrofluoric acid (HF), such that the first species is converted to a product selected from the group consisting of a fluoride, a fluorosilicate and mixtures thereof, and such that the second species is at least partly unreacted, and separating the second species from the product. | 10-08-2009 |
| 20090311153 | 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 includes an acidic solution of titanyl sulfate (TiOSO4) and iron sulfate (FeSO4) from the solid titaniferous material. The process also includes hydrolysis and other steps that form titania from the titanyl sulfate in the process solution. The process is characterised by a ferric ion treatment step of treating the process solution and lowering the concentration of ferric ions from the process solution. | 12-17-2009 |
| 20110229386 | Sulfate Process - A sulfate process for producing titania from a titaniferous material (as herein defined) including a step of leaching said titaniferous material with a leachant to form a process solution that includes an acidic solution of titanyl sulfate and iron sulfate, wherein said sulfate process further includes a filtration step comprising filtering said leachant to at least substantially remove titanyl sulfate particles from said leachant prior to supplying said leachant to said leach step. | 09-22-2011 |
| 423084000 | Treating with compound containing alkali metal or alkaline earth metal | 2 |
| 20130022522 | SYNTHETIC RUTILE PROCESS A - A process for recovering titanium as synthetic rutile from an ilmenite unsuited to the standard Becher process by treating the ilmenite in a reducing atmosphere in the presence of a carbonaceous reductant to yield reduced ilmenite in which iron oxides in the ilmenite have been reduced to metallic iron, and separating the metallic iron to obtain a synthetic rutile product. The ilmenite is treated at an elevated temperature lower than that for which the TiO | 01-24-2013 |
| 20130101483 | PROCESS FOR EXTRACTING METALS FROM ALUMINOFERROUS TITANOFERROUS ORES AND RESIDUES - A process for extracting metal values from ores or residues is disclosed. The process mentioned above is mainly suitable for aluminoferrous ores such as bauxite, titanoferrous ores such as ilmenite, or residues such as red mud waste. The process involves pulverizing the ore and/or residue and mixing with a carbonaceous material, followed by smelting the iron values and slag in the mixture to yield molten iron and oxides of aluminum and titanium. The process is simple, cost-effective, and provides effective extraction of high purity metal values. | 04-25-2013 |
| 423085000 | Forming insoluble compound containing Group IVB metal | 1 |
| 20100129279 | Extraction and Purification of Minerals From Aluminium Ores - A process for obtaining one or more metal fluoride or metal oxide compounds from treatment of a feed material containing aluminium ore, includes the steps of contacting the feed material with a fluorine acid solution to form gaseous silicon fluoride and aqueous soluble metal fluorides and/or metal fluosilicates, processing the aqueous reaction products to form a solid reaction product containing metal fluorides, processing to remove low boiling point compounds and heating said solid reaction product to a temperature to drive off metal fluoride in gaseous form. The feed material may include aluminium ores and/or titanium ores, coal or other carbonaceous materials containing mineral impurities, or other minerals such as mica. Processes for the production of aluminium and titanium compounds are also described. | 05-27-2010 |
| 423086000 | Dissolving or leaching of iron | 2 |
| 20090311154 | Extraction process for reactive metal oxides - The present invention relates to a zero-waste process for extraction of alumina from different types of bauxite ores and red mud residues and of titanium dioxide from ilmenite. Iron oxide is first reduced to metallic iron above the melting point of C-saturated cast iron alloy which yields a high-C iron alloy and an Al and Ti metal oxide rich slag which is then treated with alkali carbonate to form alkali aluminates and titanates. The alkali aluminates are separated by water leaching from which the hydroxide of alumina is precipitated by bubbling CO | 12-17-2009 |
| 20180023170 | Process for Improving the Grade and Optical Quality of Zircons | 01-25-2018 |
