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WO/2017/018441A1 |
Provided are a molten salt electrolytic cell, a metallic magnesium production method, and a sponge titanium production method that further improve current efficiency, can improve the production yield of metal per unit volume of the elect...
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WO/2017/012710A1 |
The invention relates to the method step of reducing trivalent iron in the production of titanium dioxide according to the sulfate method. According to the invention, after the removal of the poorly soluble decomposition residue, the red...
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WO/2017/015435A1 |
The present invention relates to the recovery of rare earths, scandium, niobium, tantalum, zirconium, hafnium, titanium, and the like from ores or concentrates containing fluorine. More specifically, the ores or concentrates are pretreat...
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WO/2017/012185A1 |
A method for preparing titanium or titanium aluminum alloy and a byproduct- titanium-free cryolite through two-stage aluminothermic reduction comprises the following steps: (1) using sodium fluoride and sodium fluotitanate as raw materia...
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WO/2017/010437A1 |
The present invention is characterized by comprising: an acid leaching step for obtaining a leach liquid by causing leaching of, by means of an acid, a metal mixture at least containing vanadium and at least one type of a divalent or tri...
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WO/2017/002385A1 |
A connection pipe having long service life, whereby no breakage of a lead wire or short circuiting of a lead wire and an outer pipe occurs in a process for manufacturing and purifying sponge titanium by the Kroll process, the connection ...
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WO/2016/209093A1 |
The present invention provides a method of chromium separation from sewage, including tanning sewage, as a result of a double exchange reaction yielding insoluble salts of chromium and organic acids which are very easy to filtrate and en...
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WO/2016/201558A1 |
A method for hydrometallurgical extraction of rare earth elements and niobium from a an ore or a flotation concentrate containing rare earth elements, niobium, iron and alkali earth metals, the method comprising removal of the alkali ear...
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WO/2016/202639A2 |
The invention relates to a method for starting up a fluidized bed boiler, such as a circulating fluidized bed (CFB) or a bubbling fluidized bed (BFB) boiler, for operation with a predetermined concentration of ilmenite particles in the b...
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WO/2016/201456A1 |
The use: Extraction of valuable metals - uranium, vanadium, rhenium, rare earth elements (REE) and scandium during comprehensive black-shale ore processing. The objective: To increase the recovery of uranium, vanadium, uranium, molybdenu...
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WO/2016/196949A1 |
Methods of isolating tungsten and, in particular, methods of separating tungsten and vanadium are described herein. The methods can generally comprise treating a tungsten-containing material in aqueous solution with a reducing agent suit...
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WO/2016/187993A1 |
A method for recovering and disposing a waste SCR denitrification catalyst. Firstly, pretreating the waste SCR denitrification catalyst to remove impurities, and to activate catalytic components, such as vanadium, tungsten and molybdenum...
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WO/2016/176732A1 |
This invention relates broadly to the production of titanium alloys by electrolytic reduction processes, and is concerned in one or more aspects with the preparation of a feedstock for such processes. In other aspects, the invention rela...
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WO/2016/158877A1 |
Provided is a method for efficiently producing tungsten from a raw material mixture containing a valuable material including tungsten. The tungsten production method is characterized by including: a step in which tungsten is dissolved in...
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WO/2016/159194A1 |
Provided is a method for efficiently separating and recovering tungsten and other valuable material from a valuable material including tungsten. The recovery method for valuable material including tungsten is characterized by dissolving ...
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WO/2016/142714A1 |
A method of producing a non-metallic feedstock powder suitable for reduction to metal comprises the steps of combining a liquid with solid metal oxide particles to form a mixture, subjecting the mixture to high-shear mixing to form a liq...
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WO/2016/139460A1 |
The present invention relates to a process for recovering a primary metal residue from a metal-containing composition.
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WO/2016/139461A1 |
The present invention relates to a process for recovering a primary metal residue from a metal-containing composition.
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WO/2016/129009A1 |
[Problem] To provide a method by which high-purity metallic vanadium is manufactured inexpensively and energy efficiently. [Solution] Provided is a method for manufacturing metallic vanadium in which a portion of an inorganic molten salt...
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WO/2016/127209A1 |
A process for improving the grade and optical quality of zircon, comprising: baking a mixture of a zircon feed and concentrated sulphuric acid at a baking temperature in the range of from 200 up to 400°C, and for a time to form water le...
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WO/2016/128622A1 |
The invention relates to a method for increasing titanium oxide content in slag produced in connection with electric furnace smelting of titanomagnetite, wherein the method comprises feeding titanomagnetite, reducing agent and fluxing ag...
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WO/2016/119720A1 |
Provided are a system and method for highly effective chlorination and vanadium extraction from vanadium slag. By means of heat exchange between a chlorination gas and a chlorination flue gas, a chlorination gas is preheated and an appro...
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WO/2016/120529A1 |
The invention relates to a method for producing titanium oxide-containing slag and pig iron from ilmenite. The method is characterized in that it comprises the steps: a) pre-reducing ilmenite in the presence of reductant in a prereductio...
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WO/2016/115593A1 |
A method for producing a chromite agglomerate from a particulate chromite, the method comprising the steps of: controlling the moisture content of the particulate chromite within the range 10 % to 40 % by weight; combining the particulat...
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WO/2016/117175A1 |
Provided are: an extractant which is capable of quickly and highly efficiently extracting zirconium from an acidic solution that is obtained by acid leaching a material containing zirconium and scandium such as an SOFC electrode material...
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WO/2016/116479A1 |
This invention relates to a process for the recovery of cobalt ions and tungstic acid and/or its derivatives from aqueous solutions, such as in particular the spent catalytic waters derived from processes for the oxidative cleavage of ve...
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WO/2016/112432A1 |
This invention relates to the beneficiation of titanium bearing materials having a substantial component of anatase and/or rutile and/or pseudorutile structure. Such materials include anatase ores and minerals and other sources of anatas...
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WO/2016/085961A1 |
A method of recovering magnetite from bauxite residue (62), comprising reducing the pH (63) of the bauxite residue (62) to form a treated bauxite residue, drying (64) the treated bauxite residue, adding to and mixing into (65) the treate...
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WO/2016/054952A1 |
A metallurgical process for a tungsten mineral raw material (100), comprising: employing a weak base leaching agent conducive to forming a local process circulation, the leaching agent generating two or more gases in an evaporative cryst...
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WO/2016/022330A1 |
Disclosed herein are processes for selectively solubilizing iron from a substrate material containing both titanium and iron, such as ilmenite ore. In one embodiment, the process comprises contacting a substrate material comprising iron ...
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WO/2016/017032A1 |
This method for manufacturing a concentrate comprises: a first mixed water generation step (S1) for generating first mixed water which is a mixture of first water and powdery ore; a first separation step (S2) for separating the first mix...
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WO/2016/005041A1 |
The invention relates to a method for producing stable agglomerates of fine-particle raw materials for the production of titanium dioxide in a device for a compression agglomeration, for example a roller press. The starting material has ...
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WO/2016/007022A1 |
The invention relates to a process for extracting metals and salts from titanium-bearing minerals such as perovskite. More particularly, although not exclusively, the invention relates to extracting titanium dioxide and optionally other ...
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WO/2016/007020A1 |
The invention relates to a process for extracting metals and salts from titanium-bearing minerals such as perovskite. More particularly, although not exclusively, the invention relates to extracting titanium dioxide and optionally other ...
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WO/2016/007021A1 |
The invention relates to a process for extracting metals and salts from titanium-bearing minerals such as perovskite. More particularly, although not exclusively, the invention relates to extracting titanium dioxide and optionally other ...
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WO/2015/199098A1 |
A method for processing copper-containing molybdenum ore including: a step for bringing a 50-100°C acidic aqueous solution into contact with copper-containing molybdenum ore while supplying an oxygen-containing gas to the acidic aqueous...
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WO/2015/198053A1 |
A method of producing metallic tantalum comprises the steps of providing a precursor comprising a tantalate of a first metal, arranging the precursor material in contact with a molten salt in an electrolytic cell, the electrolysis cell f...
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WO/2015/192762A1 |
A ferric hydroxide-based raw material containing high value elements, an application thereof, and a preparation method therefor. The preparation method comprises preparing a ferric hydroxide-based raw material containing high value eleme...
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WO/2015/193314A1 |
The invention relates to a method for extracting tantalum and/or niobium from an acidic aqueous phase. Said method includes at least one step that includes putting the aqueous phase A1 in contact with an organic phase, then separating th...
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WO/2015/161659A1 |
A method for simultaneously preparing high-purity vanadium and a heteropolyacid catalyst. A heteropolyacid in a vanadium-containing solution is extracted using magnetic nanoparticles grafted with an extracting agent. Utilising the magnet...
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WO/2015/161660A1 |
A method for recycling and preparing low-silicon high-purity vanadium pentoxide (V2O5) from a mixed solution containing vanadium, chromium and silicon. The method comprises the following steps: firstly, silicon is removed from a solution...
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WO/2015/159268A1 |
This invention relates to a method of forming sintered and/or pre-reduced chromite agglomerates (typically briquettes or pellets) using and/or containing a SiC Composite (a form of silicon carbide containing material) as a reductant for ...
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WO/2015/159685A1 |
The purpose of the present invention is to provide a wet-mode nickel oxide ore smelting method for collecting nickel and cobalt employing a high pressure acid leach process, whereby it becomes possible to simplify a production facility a...
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WO/2015/157498A1 |
A method of depressing copper sulfides and iron sulfides in a molybdenite floatation recovery process uses alkaline or alkaline earth potysulftdes at high concentrate pH. The method of enriching molybdenite content from a slurry having m...
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WO/2015/137653A1 |
The present invention relates to a method for recovering vanadium and tungsten from a leach solution of a waste denitrification catalyst, and more specifically, to a method for recovering vanadium and tungsten from a leach solution of a ...
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WO/2015/131266A1 |
The present invention relates, first, to a two-stage leaching process using concentrated hydrochloric acid wherein ground ore is leached with two separate quantities of hydrochloric acid at different temperatures. Second, the invention r...
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WO/2015/094008A1 |
A method for processing titanomagnetite ore materials containing Ti, Fe and Si compounds is disclosed. According to the invention a titanomagnetite raw material is reacted with an ammonium fluoride reagent to obtain a fluorinated prod...
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WO/2015/085818A1 |
A separation method of a zirconia/hafnium oxide mixture. Putting the zirconia/hafnium oxide mixture, charcoal and pure bromine into a reaction for one hour under 650℃ to obtain bromide of zirconium and hafnium, adding the bromide of zi...
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WO/2015/080326A1 |
The present invention relates to a method for pretreating copper-containing molybdenite and, more particularly, to a method for pretreating copper-containing molybdenite comprising the steps of: mixing copper-containing molybdenite with ...
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WO/2015/078493A1 |
The present invention provides a method of pre-treating sulfur-poor metal oxide concentrate, comprising the steps of: providing sulfur-poor metal oxide concentrate having sulfur content below 10 % w/w; (a) heating the sulfur-poor metal o...
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