Matches 1 - 38 out of 38


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US20150023850 NEUTRALIZATION METHOD AND NEUTRALIZATION PLANT  
A method for improving the filterability in separating a zinc sulfide, produced by applying sulfurization treatment to a post-neutralization solution containing zinc together with nickel and...
US20140264185 RECYCLING METHOD OF OLIVINE-BASED CATHODE MATERIAL FOR LITHIUM SECONDARY BATTERY, CATHODE MATERIAL FABRICATED THEREFROM, AND CATHODE AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME  
The present invention relates to a method for recycling LiFePO4, which is an olivine-based cathode material for a lithium secondary battery. The present invention is characterized in that a...
US20140308182 Method for Concentrating Metal Chlorides in and Separating Same from an Iron(III) Chloride-Containing Hydrochloric Acid Solution  
A method for concentrating metal chlorides in and separating same from an iron(III) chloride-containing hydrochloric acid solution is described, wherein iron is precipitated from the solution as...
US20130266493 METHOD FOR SEPARATING NICKEL FROM MATERIAL WITH LOW NICKEL CONTENT  
The invention relates to a method for separating nickel and other valuable metalsparticularly from material having low nickel content, which contains iron and magnesium in addition to nickel and...
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,...
US20070297960 Extraction of Nickel and Cobalt from a Resin Eluate Stream  
A process for the recovery of nickel and cobalt from an acidic resin eluate containing at least nickel and cobalt, said process including the steps of: (a) treating the eluate with an immiscible...
US20110158869 PROCESSING METHOD FOR RECOVERING IRON OXIDE AND HYDROCHLORIC ACID  
A method of processing waste iron chloride solution including ferrous chloride, ferric chloride or mixtures thereof and optionally free hydrochloric acid, includes concentrating waste iron...
US20150023849 DEZINCIFICATION PLANT, METHOD FOR OPERATING DEZINCIFICATION PLANT, AND HYDROMETALLURGICAL METHOD FOR NICKEL OXIDE ORE  
The present invention provides a hydrometallurgical method for nickel oxide ore, wherein the plant can be smoothly started up without imposing a load onto a filter cloth for a separation treatment...
US20150225810 IRON RECOVERY METHOD  
A method for recovery of iron in the form of an iron oxide as useful product, such as hematite, from a leach solution obtained from leaching of a nickel laterite ore, is proposed which comprises...
US20150000466 Production of High Grade Nickel Product  
A process for the production of a high grade nickel product including the steps of: a) providing at least one heap of a nickeliferous lateritic ore and leaching that heap with a suitable...
US20140286840 METHOD FOR RECOVERING METALS FROM WASTE ALUMINUM CATALYST  
The present invention refers to a method being easy to recover metals including nickel and aluminum from waste aluminum catalysts, thereby entirely promoting the recovering rate. Said method...
US20150023851 METHOD FOR PRODUCING HEMATITE FOR IRONMAKING  
Provided is a method for producing hematite for ironmaking, wherein high purity hematite, which can be used as an iron-making raw material, is cheaply and efficiently recovered from a leach...
US20080075645 Process for Complete Utilisation of Olivine Constituents  
A novel process for complete utilization of olivine is based on purification of brine by oxidation and precipitation of iron and nickel compound.
US20110256039 METHOD FOR REGENERATING AMORPHOUS IRON OXIDE HYDROXIDE AND DESULFURIZER CONTAINING AMORPHOUS IRON OXIDE HYDROXIDE AS ACTIVE COMPONENT  
Methods for regenerating amorphous iron oxide hydroxide after being used as desulfurizer by (1) grinding a waste mixture into waste powder, wherein the waste mixture results from use of the...
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...
US20140301920 PROCESSES FOR RECOVERING RARE EARTH ELEMENTS FROM VARIOUS ORES  
There are provided methods for preparing hematite. For example, the method can comprise reacting a basic aqueous composition comprising the iron and the aluminum with hematite under conditions...
US20110120267 Iron Precipitation  
A process for the treatment of a solution containing at least ferric ions, and one or more metal values, said process including the step of maintaining a controlled concentration of ferric ions in...
US20110260102 PREPARATION AND REPEATED REGENERATION OF MATERIAL CONTAINING AMORPHOUS IRON OXIDE HYDROXIDE, DESULFURIZATION AGENTS CONTAINING THE MATERIAL, AND PREPARATION AND REPEATED REGENERATION THEREOF  
Method for preparing material containing amorphous iron oxide hydroxide, the method including: mixing an aqueous ferrous salt solution and hydroxide solution or solid hydroxides at the temperature...
US20140170040 NICKEL RECOVERY LOSS REDUCTION METHOD, HYDROMETALLURGICAL METHOD FOR NICKEL OXIDIZED ORE, AND SULFURATION TREATMENT SYSTEM  
A nickel recovery loss reduction method that makes it possible to reduce nickel recovery loss by lowering the concentration of fine floating solid components in overflow liquid in precipitating...
US20110142736 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 iron, magnesium and aluminum and a second group metal selected from...
US20080118421 METHOD AND MEANS FOR USING MICROWAVE ENERGY TO OXIDIZE SULFIDIC COPPER ORE INTO A PRESCRIBED OXIDE-SULFATE PRODUCT  
The present invention is directed to the microwave treatment of a class of selected metal ores and concentrates, particularly those known as chalcopyrite, in a fluidized bed reactor. The end...
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...
US20080102007 Process for treating iron-containing waste streams  
The invention is a process for treating an iron-containing waste stream. The process comprises dividing the waste stream into a first and a second stream, then adding a neutralization agent (e.g.,...
US20110056333 Process For Atmospheric Leaching Of Laterite Ores Using Hypersaline Leach Solution  
An atmospheric leaching process for the recovery of a nickel and cobalt from a lateritic ore, said process including the steps: (a) preparing a slurry of the lateritic ore with saline or...
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...
US20120114539 Metal Recovery Process  
A process for recovering a metal chloride or mixed metal chloride from a solid waste material comprising recoverable metal containing constituents produced by lead, copper or zinc smelting and...
US20130294985 Titania-Supported Hydrotreating Catalysts  
TiO2-supported catalysts include at least molybdenum or tungsten as active components for hydrotreating processes, in particular for the removal of sulfur and nitrogen compounds as well as metals...
US20140286841 PROCESSES FOR RECOVERING RARE EARTH ELEMENTS FOR ALUMINUM-BEARING MATERIALS  
There are provided methods for separating iron ions from aluminum ions contained in an acidic composition. The methods comprise reacting the acidic composition with a basic aqueous composition...
US20140369904 PROCESSES FOR PREPARING ALUMINA AND VARIOUS OTHER PRODUCTS  
There are provided processes for preparing alumina. These processes can comprise leaching an aluminum-containing material with HCl so as to obtain a leachate comprising aluminum ions and a solid,...
US20130052105 System and Method for Processing Aqueous Solutions  
A system and method for processing aqueous solutions is provided. A method for controlled bubble collapse is provided, which catalyzes chemical reactions in aqueous solutions that cause metal and...
US20100226838 PROCESS FOR THE REMOVAL OF CATALYST DEGRADATION PRODUCTS  
The present invention relates to a process for the removal of metal catalyst degradation products from a bleed stream of a catalytic chemical reaction process, wherein the catalyst is based on a...
US20110123418 Process for Forming High Density Sulfides  
A process for the recovery of a metal sulfide from a metal ion containing solution, including the steps of: a) providing a slurry containing seed panicles of said metal sulfide; h) adding a...
US20110107876 METHOD OF MANUFACTURING FE AND NI CONTAINING MATERIAL AND COBALT CONTAINING MATERIAL USING RECYCLING RESIDUE OF SPENT CATALYST AND METHOD OF MANUFACTURING RAW MATERIAL FOR STAINLESS USING THE FE AND NI CONTAINING MATERIAL AND METHOD OF MANUFACTURING FE-NI ALLOY  
Methods of manufacturing Fe and Ni-containing material and Co-containing material from petrochemical desulfurization residue containing Fe and Ni or Fe and Co, manufacturing raw material for...
US20160362304 METHOD FOR PRODUCING HEMATITE FOR IRONMAKING  
There is provided a method for producing (high purity) hematite for ironmaking, in a process where a mineral acid and an oxidizing agent are added to an ore containing iron and a valuable metal...
US20160289084 METHOD FOR PRODUCING HEMATITE FOR IRONMAKING  
Provided is a method for producing hematite for ironmaking, capable of using a conventional Ca-based neutralizing agent and a base rock-derived neutralizing agent other than the Ca-based...
US20160052796 METHODS FOR PREPARING HEMATITE  
There are provided methods for preparing hematite. For example, the method can comprise reacting a basic aqueous composition comprising the iron and the aluminum with hematite under conditions...
US20160032421 PROCESSES FOR TREATING FLY ASHES  
There are provided processes for treating fly ash. For example, the processes can comprise leaching fly ash with HCl so as to obtain a leachate comprising aluminum ions and a solid, and separating...
US20150361522 METHOD OF PRECIPITATION OF IRON FROM LEACH SOLUTIONS  
We propose a method of removing iron from leach solutions, obtained by leaching of metal bearing materials with acids, in the form of hydroxide and/or oxide by precipitation. The advantages with...

Matches 1 - 38 out of 38