Matches 1 - 33 out of 33


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US20110116996 PROCESS FOR NON-HEATING LEACHING NICKEL AND MAGNESIUM FROM LATERITE USING MECHANO-CHEMICAL EFFECT  
A method of physicochemical leaching valuable metals is able to increase the leaching rate of nickel and magnesium contained in laterites, nickel ores, with a low concentration acid solution by...
US20140205520 LEACHING OF MINERALS AND SEQUESTRATION OF CO2  
A method for leaching of minerals and sequestration of CO2 is disclosed, wherein the method comprises forming a rock pile; injecting exhaust gas containing CO2 in the lower part of the rock pile;...
US20140308183 METHOD FOR PRODUCING NICKEL-CONTAINING ACID SOLUTION  
The method for obtaining an acid solution containing nickel is obtained by treating a positive electrode material of a nickel-metal hydride battery. The method includes a water-washing step,...
US20050147820 Iron oxide powder and a process of producing the same  
Iron oxide powder for an undercoat layer of a coat-type magnetic recording medium having a multilayer structure which comprises cobalt-doped iron oxide particles having an average length of 0.02...
US20120204680 System and Method for Recovery of Nickel Values From Nickel-Containing Ores  
A method is provided for extracting nickel values from nickel-containing ores. The method comprises (a) treating a nickel-containing ore with an acid, thereby producing an acid treated ore; (b)...
US20100028227 Hydrometallurgical process for nickel oxide ore  
The hydrometallurgical Process for a nickel oxide ore, which is capable of preventing inevitable operation shutdown of a leaching step and maintaining high operation efficiency as a whole process,...
US20150086450 METHOD FOR ADDING STARTING MATERIAL SLURRY AND SULFURIC ACID TO AUTOCLAVE IN HIGH PRESSURE ACID LEACHING PROCESS AND AUTOCLAVE  
In an autoclave in a high pressure acid leaching process in which starting material slurry and sulfuric acid are stirred by stirring machines in each compartment in the autoclave partitioned by...
US20130028816 SELECTIVE BASE METALS LEACHING FROM LATERITE ORES  
A process to use ferric sulphate equilibrium to reduce overall acid consumption and iron extraction, the process comprising the steps of: (i) sulphating; (ii) selective pyrolysis and (iii)...
US20060263282 Process for nickel and cobalt extraction from laterite ores  
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...
US20080274027 Pressure Leaching System and Method  
A pressure leaching system for use in a leaching operation including: at least one reaction zone for receiving a slurry of material to be leached from a slurry source, the reaction zone being...
US20080050294 Consecutive or Simultaneous Leaching of Nickel and Cobalt Containing Ores  
A process for the recovery of nickel and cobalt from nickel and cobalt containing ores, including the steps of first leaching a laterite ore and/or a partially oxidised sulfide ore with an acid...
US20140262817 SYSTEMS AND METHODS FOR SELECTIVE PROXIMITY COBALT RECOVERY  
Various embodiments provide a method comprising leaching a cobalt bearing material to form a slurry, filtering the slurry to yield solids and a cobalt bearing liquid phase, and forwarding the...
US20150050201 METHOD FOR PRODUCING HEMATITE FOR IRONMAKING  
Provided is a production method for refining iron oxide (hematite), which has such a low sulfur content as to be used as an iron-making raw material, from a leach residue containing iron oxide...
US20150197826 HYDROMETALLURGICAL PROCESS AND METHOD FOR RECOVERING METALS  
A mineral processing facility is provided that includes a cogen plant to provide electrical energy and waste heat to the facility and an electrochemical acid generation plant to generate, from a...
US20110182786 HYDROMETALLURGICAL PROCESS AND METHOD FOR RECOVERING METALS  
A mineral processing facility is provided that includes a cogen plant to provide electrical energy and waste heat to the facility and an electrochemical acid generation plant to generate, from a...
US20150050200 PRODUCTION METHOD FOR HEMATITE FOR IRON PRODUCTION  
Provided is a production method for refining iron oxide (hematite), which has such a low sulfur content as to be used as a raw material for ironmaking from a leach residue containing iron oxide,...
US20150218669 METHOD FOR LEACHING NICKEL, COBALT AND IRON FROM A NICKEL LATERITE ORE  
We propose a method for leaching nickel, cobalt and iron from a nickel laterite ore, characterized in that the nickel laterite ore is brought into contact with a solution of sulphuric acid and...
US20100098608 PROCESS FOR THE HYDROMETALLURGICAL TREATMENT OF A LATERITIC NICKEL/COBALT OR AND PROCESS FOR PRODUCING NICKEL AND/OR COBALT INTERMEDIATE CONCENTRATES OR COMMERCIAL PRODUCTS USING IT  
Process for the treatment of a lateritic nickel/cobalt ore consisting of a mixture (2) of limonite and saprolite, characterized in that: the mixture (2) in the presence of an iron-precipitating...
US20120244051 METHOD FOR LEACHING COBALT FROM OXIDISED COBALT ORES  
A method for leaching cobalt from a non-lateritic oxidised cobalt ore, the method comprising the method steps of: curing the non-lateritic oxidised cobalt ore to be leached through the application...
US20120308450 PROCESS OF RECOVERY OF BASE METALS FROM OXIDE ORES  
A method for recovering base metal values from oxide ore is provided, where the ore includes a first group metal selected from nickel, cobalt and copper. The method includes reducing ore particle...
US20110150729 Process for Heap Leaching of Nickeliferous Oxidic Ores  
A process for the recovery of nickel and cobalt from a nickeliferous oxidic ore by heap leaching and/or atmospheric agitation leaching, the process including the steps of: mixing a sulfur...
US20080050293 Leach Extraction Method  
There is provided a method for leach extraction of copper/iron/sulphur ores and concentrates including leaching the mineral with an aqueous stream containing ferric ions and sulphuric acid in the...
US20100296988 SELECTIVELY LEACHING COBALT FROM LATERITIC ORES  
A heap leach process for the recovery of nickel and cobalt from a lateritic ore, said process including the steps of leaching and/or agglomerating the ore with a lixiviant that includes ferrous...
US20140023572 METHOD OF ORE PROCESSING  
A method of selectively leaching a metal such as nickel from an ore or ore processing intermediate comprising the metal and cobalt. The ore or ore processing intermediate is contacted with an...
US20150044112 METHOD FOR OPERATING FLASH VESSEL  
The present invention is such that, with H1 being the height from a slurry outlet to a control liquid level, H2 being the height from the control liquid level to the top of a flash vessel, and...
US20140147353 COMPOSITIONS AND METHODS FOR THE SEPARATION OF METALS  
Methods and compositions are described for preparing metal salts and selectively separating metals from substrates and other metals. The methods can include a thionyl reagent that reacts with a...
US20080069748 MULTIVALENT IRON ION SEPARATION IN METAL RECOVERY CIRCUITS  
The present invention is directed to the selective removal of ferric ion and/or ferric compounds from valuable metal recovery process streams.
US20100226837 PRODUCTION OF METAL PRODUCTS DIRECTLY FROM UNDERGROUND ORE DEPOSITS  
A process for producing metal compounds directly from underground mineral deposits including the steps of forming a borehole at a site into a mineral deposit containing metal compounds, inserting...
US20110293492 IN SITU PROCESS AND METHOD FOR GROUND WATER REMEDIATION AND RECOVERY OF MINERALS AND HYDROCARBONS  
Devices, systems, and methods relating to advanced, high pressure oxidation are described. The devices, systems, and methods can be used to decontaminate ground water in a well or opening in a...
US20100135878 Production process of sulfide containing nickel and cobalt  
A production process of a sulfide containing nickel and cobalt by adding a sulfurizing agent under pressurization into an aqueous solution of sulfuric acid containing nickel and cobalt, which is...
US20160049700 METHOD FOR REMOVING COPPER AND ALUMINUM FROM AN ELECTRODE MATERIAL, AND PROCESS FOR RECYCLING ELECTRODE MATERIAL FROM WASTE LITHIUM-ION BATTERIES  
The present invention provides a method for removing copper and aluminum from an electrode material and a process for recycling electrode material from waste lithium-ion batteries. The method for...
US20150284820 HYDROMETALLURGICAL PROCESS FOR NICKEL OXIDE ORE  
Provided is a hydrometallurgical process of recovering Ni from nickel oxide ore using a high pressure acid leaching, in which abrasion of the facilities caused by an ore slurry is suppressed, the...
US20150275324 CAPSULES OF VIABLE BIOMINING MICROORGANISMS, WITH ALGINATE AND IRON IONS CALLED BIOSIGMA BIOLEACHING SEEDS (BBS) AND THEIR USE FOR INOCULATION OF THESE MICROORGANISMS IN BIOLEACHING PROCESSES  
The invention refers to viable biomining microorganisms encapsulated in alginate capsules, called BioSigma Bioleaching Seeds or BBS, wherein the alginate capsules have iron (II) and/or iron (III)...

Matches 1 - 33 out of 33