| Document |
Document Title |
|
WO/2004/083467A2 |
Cermet material obtained from unused inert anodes, used inert anodes and cermet used in the production of inert anodes is beneficiated into a nonferrous metal concentrate composition from which metal values contained in the composition m...
|
|
WO/2004/081238A1 |
Agglomerates with carbonaceous material incorporated therein that contain a widely produced inexpensive high-VM coal of rich reserve and do not need metal oxide pulverization, excelling in strength after reduction; and a process for prod...
|
|
WO/2004/070067A2 |
A method of forming a nanocrystalline metal, comprising the steps of: providing a reaction mixture comprising a metal precursor and an alcohol solvent; continuously flowing the reaction mixture through a reactor; applying microwave or mi...
|
|
WO/2004/067787A1 |
A method for the recovery of nickel and cobalt from nickel and cobalt containing laterite ores, said method comprising: a) roasting feed ore in a reducing atmosphere in a rotary kiln to selectively reduce the nickel and cobalt, wherein e...
|
|
WO/2004/055225A1 |
The present invention is a process for the extraction of nickel from low-grade chromite ore containing 0.6 to 0.9 % nickel, said process comprises of crushing, drying and grinding of low grade Chromite Ore to obtain +100 to -400 mesh B.S...
|
|
WO/2004/048621A1 |
The present invention relates to a process for the production of a metal or an alloy which comprises reducing a metal ore with a carbon material, where the carbon material is solid carbon produced from a carbon-containing gas.
|
|
WO/2004/031422A1 |
In accordance with the present invention there is provided a method for the heap leaching of base metals from oxide ores, the method characterised by the method steps of: a) Establishing at least one heap of the oxide ore containing the ...
|
|
WO/2004/022795A1 |
The process of the present invention recovers platinum group metal(s), such as platinum and palladium, from PGM-containing materials containing base metals, such as copper and nickel. The process controls sulfur levels by using solvent e...
|
|
WO/2004/020714A1 |
The present invention relates to a method for removing metal contaminants from carbon nanofibres, said method comprising contacting carbon nanofibres with carbon monoxide whereby to form a metal carbonyl and removing said metal carbonyl ...
|
|
WO/2004/016816A1 |
A process for recovering valuable metals from laterite ores and concentrates that are contaminated with iron is disclosed. The process includes reducing ferric ions to ferrous ions in a leach liquor containing a valuable metal and iron i...
|
|
WO/2004/007775A2 |
The present invention provides a method of reducing metal oxide material to metal comprising the steps of forcibly circulating molten carrier material in a closed loop path serially through a charge reduction zone on one arm of the loop,...
|
|
WO/2003/102250A1 |
A method of treating ore particles to facilitate subsequent processing of the ore particles to recover valuable components from the ore is disclosed. The method includes exposing the ore particles to microwave energy and causing structur...
|
|
WO/2003/100105A1 |
A process for the extraction of a base metal such as Ni, Co or Zn, from a sulphide ore or concentrate containing copper and the base metal comprises the step of subjecting the ore or concentrate to pressure oxidation in the presence of o...
|
|
WO/2003/097903A1 |
A method of producing a high-purity metal characterized by comprising the step of, when metal-containing solution is used as an electrolyte in electrolyzing, partitioning an anode from a cathode by an negative ion exchange membrane, inte...
|
|
WO/2003/093517A1 |
An atmospheric leach process in the recovery of nickel and cobalt from lateritic ores, said processing including the steps of: a) separating the lateritic ore into a low magnesium containing ore fraction, and a high magnesium containing ...
|
|
WO/2003/093516A1 |
The invention relates to a method for refining precious metal concentrate, and according to said method, at least the precious metal concentrate (9), reaction gas (10), flux (11) and flue dust (12) to be treated are fed together into the...
|
|
WO/2003/080878A1 |
The present invention relates to a process for recovery of nickel and alumina from spent catalyst by direct leaching with sulphuric acid in presence of small amount of a persulphate based additive. The invention is useful for recovery of...
|
|
WO/2003/072835A1 |
Methods and apparatuses for separating metal values, such as nickel and nickel compounds, from mineral ores, including lateritic ores are disclosed. The method includes providing a mixture of particles (e.g., crushed and sized ore) that ...
|
|
WO/2003/062478A1 |
The invention relates to a method for the separation of zinc an a second metal which does not form an anionic complex in the presence of chloride ions, zinc and the second metal being present in an effluent in the form of ZnCl2 and a sec...
|
|
WO/2003/056042A1 |
This invention relates to a method for the removal of iron as hematite from a zinc sulphate solution in atmospheric conditions during the electrolytic preparation of zinc. According to the method, the pH of the iron-containing solution i...
|
|
WO/2003/056045A1 |
A method is provided for the removal of chromium from leach liquors produced during high pressure leaching of laterite ores in an autoclave, by addition to the autoclave of carbon in a quantity of about 0.5% - 1% by weight with reference...
|
|
WO/2003/054238A1 |
This invention relates to a method of removing iron and manganese values and recovering cobalt values from a solution containing iron values, manganese values, cobalt values, and optionally other metal values. The method includes the ste...
|
|
WO/2003/046233A1 |
1. A process for the recovery of a metallic nickel product in a solvent extraction process including the steps of:(a) forming a nickel ammine complex by stripping nickel from a nickel loaded organic phase with a high strength ammonia sol...
|
|
WO/2003/025234A2 |
The invention relates to a method for obtaining metals from a cobalt and/or nickel arsenic sulfide ore or ore concentrate and/or a cobalt and/or nickel sulfide ore or ore concentrate, according to which the cobalt and/or nickel arsenic s...
|
|
WO/2003/018851A1 |
A process for treating organic reagents containing cobalt in a nickel and cobalt separation process, said process including the step of contacting the organic reagent with dilute sulphuric acid at higher than ambient temperature for a pe...
|
|
WO/2002/102533A1 |
A method for producing a metal powder, which comprises contacting a metal chloride gas with a reducing gas, to give a metal powder, and washing the metal powder with aqueous solution of carbonic acid, and preferably subjecting the washed...
|
|
WO/2002/103064A1 |
A method for producing a granular metal wherein a raw material composed of a material containing a metal oxide and a carbonaceous reducing agent is heated to reduce the metal oxide in the raw material, and the formed metal is further mol...
|
|
WO/2002/083316A1 |
The present invention relates to a gravity/flotation circuit where a mineral stream, such as a flotation rougher or cleaner concentrate, undergoes a two stage size separation wherein: i) the screen of the first stage provides a coarse st...
|
|
WO/2002/072897A1 |
A method of producing a nickel base alloy includes casting the alloy within a casting mold and subsequently annealing and overaging the ingot at least 1200 °F (649 °C) for at least 10 hours. The ingot is electroslag remelted at a melt ...
|
|
WO/2002/055746A1 |
The invention relates to an apparatus for feeding finely divided solids, containing at least sulphidic metal concentrate, and oxygenous oxidizing gas into a suspension smelting furnace, said apparatus comprising elements for conducting s...
|
|
WO/2002/050321A2 |
The present invention provides an improved process of hydrometallurgical treatment of laterite ores of the limonitic type for the recovery of nickel and cobalt using sulphuric acid. In order to obtain high extractions of these metals whi...
|
|
WO/2002/046481A1 |
The invention relates to a method for the hydrolytic precipitation of iron from a sulphate solution as jarosite. A sulphate-containing solution, with iron present in divalent form, is routed to an iron precipitation stage, where the iron...
|
|
WO/2002/036838A2 |
The present invention provides an atmospheric acid leaching process for leaching nickel and cobalt from highly-serpentinized saprolitic fractions of nickel laterite deposits that are generally too low in nickel to support economical extr...
|
|
WO/2002/024966A1 |
There is provided a process for the recovery of nickel and cobalt values from a sulfidic flotation concentrate. The process involves forming a slurry of the flotation concentrate in a sulfuric acid solution, and subjecting the slurried f...
|
|
WO/2002/020451A1 |
A method of recovering metal values from an ion exchange resin to which a metal species is bound comprising contacting the reaction product stream with a basic ion exchange resin such that at least a part of the metal becomes bound to th...
|
|
WO/2002/018663A2 |
The invention provides a process for the selective recovery of aluminium, cobalt and platinum, and compounds thereof, from a catalyst composition including aluminium, cobalt and platinum, said process including the steps of treating the ...
|
|
WO/2002/012577A1 |
The present invention relates to producing cobalt having a low oxygen and a low oxide inclusion content for use as a sputter target thereby reducing the arcing and metal defects during sputtering commonly associated with high-oxygen coba...
|
|
WO/2002/008477A1 |
A method for the recovery of nickel, cobalt, iron, chromium and magnesium species from laterite ores by a series of steps which include grinding the ore to produce granules; chlorinating the ore by first subjecting them to gaseous hydroc...
|
|
WO/2002/004118A1 |
The present invention pertains to a catalyst composition comprising at least one non-noble Group VIII metal component, at least two Group VIB metal components, and at least 1 wt.% of a combustible binder material selected from combustibl...
|
|
WO/2002/002848A2 |
The invention encompasses a method and apparatus for producing high-purita metals (such as, for example, high-purity cobalt), and also encompasses the high-purity metals so produced. The method an comprise a combination of electrolysis a...
|
|
WO2001036693B1 |
A bio-leaching method is provided for recovering metal from a metal containing ore. The ore is subjected to contact with a microorganism selective to the oxidation of sulfur. A sulfur containing compound is mixed with the microorganism b...
|
|
WO/2001/096621A1 |
The present invention relates generally to a two step solvent extraction circuit to remove impurity metals of zinc and cobalt selectively from a valuable metal of nickel. In order to selectively extract zinc there must be sufficient sepa...
|
|
WO/2001/094652A1 |
The invention relates to a method for producing briquettes from nickel-oxide powder (NiO). Said method consists of mixing the nickel-oxide powder with cellulose fibres, starch and liquid and of subsequently compressing the mixture.
|
|
WO2001032944B1 |
A process is provided for the leaching of both the "limonite" (Fe approx. ≥ 25 % and Mg approx. ≤ 6 %) and "saprolite" (Fe approx. ≤ 20 % and Mg approx. ≥ 10 %) fractions of typical nickel and cobalt bearing laterite ore. The low...
|
|
WO/2001/075184A2 |
A process is provided for heap leaching ore to recover nickel. The process is particularly effective for ores that have a tangible clay component (i.e., greater than 10 % by weight). The process includes sizing the ore (where necessary),...
|
|
WO/2001/073144A2 |
An improved process for separating cobalt values from nickel values in an aqueous nickel and cobalt sulphate-containing solution in which the solution is contacted with a water-immiscible organic solution containing an organophosphorous ...
|
|
WO/2001/072456A1 |
The invention relates to a method for producing metal bodies by mixing metal compound particles with a binding agent and compacting them to form shaped parts, whereby the binding agent is subsequently removed and the metal compound is re...
|
|
WO/2001/068927A1 |
A continuous nickel matte converter and method for the efficient production of low iron nickel-rich mattes from high-iron nickel-rich mattes, with minimal environmental impact. The present invention processes high-iron, nickel-rich prima...
|
|
WO/2001/062993A1 |
Disclosed is a process for recovery of cyanide and metals from a liquor containing complexes of cyanide and metal typically generated by a metallurgical or industrial process. The process involves electrochemical dissociation of the meta...
|
|
WO/2001/055463A1 |
A process for producing purified cobalt from a mixture comprising metallic species of cobalt and metallic species of at least one of the group consisting of nickel and iron, comprising producing a metal carbonyl mixture of cobalt carbony...
|
