Matches 1 - 47 out of 47


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US20120219476 Methods Of Metal Extraction Using Oximes  
Provided are methods using ketoximes and/or aldoximes, including 3-methyl-5-alkylsalicylaldoxime and/or 3-methyl-5-alkyl-2-hydroxyacetophenone oxime, in reagent compositions for metal...
US20110195000 ION EXCHANGE COBALT RECOVERY  
Method of ion exchange cobalt recovery. Raffinate including cobalt, zinc, copper, nickel and ferric iron is produced. In the raffinate, the pH is raised, the solids are removed and ferric iron is...
US20120219478 Methods Of Metal Extraction From Ammoniacal Solutions Using Oximes  
Provided are methods using ketoximes and/or aldoximes, including 3-methyl-5-alkylsalicylaldoxime and/or 3-methyl-5-alkyl-2-hydroxyacetophenone oxime, in reagent compositions for metal...
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...
US20150152519 Removal of Ferric Iron as Hematite at Atmospheric Pressure  
A process for the removal of ferric iron as hematite from a nickel solution containing ferric and ferrous ions including the steps of: raising the temperature of the nickel solution to between 90°...
US20110194999 COBALT RECOVERY  
A method for extracting cobalt from copper raffinate. First, a supply of raffinate containing at least cobalt, copper, ferric iron and nickel, is provided. The raffinate is pretreated by one or...
US20140294703 METHOD FOR PRODUCING HIGH-PURITY COBALT SULFATE AQUEOUS SOLUTION  
Disclosed herein is a method for easily and efficiently removing manganese from an aqueous acidic solution of sulfuric acid containing cobalt and manganese at low cast to obtain a high-purity...
US20140348731 METHOD FOR PRODUCING COBALT SULFATE  
Provided is a method for producing cobalt sulfate, wherein, on the occasion of separating an acidic solution containing calcium, magnesium and sodium as impurities from a cobalt chloride solution...
US20140124698 METHOD FOR PREPARING MAGNETITE NANOPARTICLES FROM LOW-GRADE IRON ORE USING SOLVENT EXTRACTION AND MAGNETITE NANOPARTICLES PREPARED BY THE SAME  
The present invention relates to a method for preparing magnetite nanoparticles from low-grade iron ore using solvent extraction and magnetite nanoparticles prepared by the same. According to the...
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)...
US20090068076 Nickel sulphide precipitation process  
The invention provides hydrometallurgical processes by which dissolved nickel may be removed from water at ambient temperature and low system pressure.
US20120219474 Metal Solvent Extraction Reagents And Use Thereof  
Reagent compositions, methods for their manufacture and methods of their use are described. In particular, provided are reagent compositions comprising an aldoxime and ketoxime with an alkyl...
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...
US20120213681 DIRECT PURIFICATION OF A NICKEL LATERITE LEACHING EFFLUENT  
The present invention refers to a direct purification process of a nickel laterite leaching effluent including adjusting a pH of a leaching solution, employing an ion exchange resin to adsorb...
US20090087361 PRODUCING NICKEL HYDROXIDE SUITABLE FOR PELLETIZATION WITH IRON-CONTAINING ORE AND FOR STAINLESS STEEL MANUFACTURE  
A process for producing a purified nickel hydroxide precipitate from a nickel-containing leach solution with impurities including one or more of the following: manganese, copper, zinc, iron and/or...
US20140262816 SYSTEMS AND METHODS FOR 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, performing a solution...
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...
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...
US20130149219 SEPARATION OF IRON FROM VALUE METALS IN LEACHING OF LATERITE ORES  
The invention provides a process for the leaching of a laterite ore, concentrate, tailings or waste rock for the recovery of value metals, at least one value metal being nickel. The laterite ore...
US20140294702 RECOVERY OF NICKEL IN LEACHING OF LATERITE ORES  
The invention provides a process for the leaching of a laterite ore or concentrate for the recovery of value metals, at least one value metal being nickel. The laterite ore or concentrate is...
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...
US20140322109 METHOD FOR PRODUCING HIGH-PURITY NICKEL SURFACE  
Provided is a production method for obtaining high purity nickel sulfate having low levels of impurities, particularly low levels of magnesium and chloride, by adjusting the concentration of an...
US20110135547 METHOD FOR RECOVERING NICKEL FROM SULFURIC ACID AQUEOUS SOLUTION  
A method for recovering nickel from an sulfuric acid aqueous solution, for recovering nickel in an effectively utilizable form as a raw material of nickel industry material, by separating...
US20080003154 Solvent, extraction of impurities from concentrated metal sulphate solutions  
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...
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...
US20110274597 USE OF Mg(HCO3)2 AND/OR Ca(HCO3)2 AQUEOUS SOLUTION IN METAL EXTRACTIVE SEPARATION AND PURIFICATION  
The application of aqueous solution of magnesium bicarbonate and/or calcium bicarbonate in the process of extraction separation and purification of metals is disclosed, wherein the aqueous...
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...
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...
US20100228046 Cobalt Recovery From Cobalt Catalysed Hydroformylation Reactions  
In a hydroformylation reaction, the circulation and recovery of cobalt carbonyl in a cobalt catalyst cycle using carbonylate as an intermediate and acidification thereof, is improved by supplying...
US20130213820 SYSTEM AND METHOD FOR PARALLEL SOLUTION EXTRACTION OF ONE OR MORE METAL VALUES FROM METAL-BEARING MATERIALS  
The present disclosure relates to a process and system for recovery of one or more metal values using solution extraction techniques and to a system for metal value recovery. In an exemplary...
US20140328737 COBALT EXTRACTION METHOD  
The objective of the present invention is to selectively extract cobalt from an acidic solution containing a high concentration of manganese. This cobalt extraction method extracts cobalt from an...
US20070292325 Process for improving phase separations in solvent extraction circuits  
The addition of a compatible metal salt crystal to the organic solution entering the mixer(s) in the solvent extraction stage(s) and/or the stripping stage(s), or to the emulsion mixture of the...
US20120219475 Compositions and Methods of Using a Ketoxime in a Metal Solvent Extraction Reagent  
Provided are methods using a ketoxime in metal extraction. One aspect of the invention relates to a method for the recovery of metal from a metal-containing aqueous solution at an elevated...
US20080038168 Solvent Extraction Process For Separating Cobalt And/Or Manganese From Impurities In Leach Solutions  
A process for the separation of cobalt and/or manganese from impurity elements selected from one or more of calcium and magnesium contained in a leach solution, the process comprising the step of...
US20070041884 Resin and process for extracting non-ferrous metals  
A process is provided for the direct recovery of non-ferrous metals (nickel, cobalt, copper etc) from raw materials such as ores, concentrates, semiproducts and/or solutions by ion exchange. A...
US20150152522 SOLVENT EXTRACTION PROCESS FOR SEPARATING COBALT FROM NICKEL IN AQUEOUS SOLUTION  
A process for separating Co from Ni in an aqueous solution comprises subjecting the solution to extraction and using kinetic differences between Ni and Co in the extraction for achieving at least...
US20090324467 MAGNETIC CHEMICAL ABSORBENT, PRODUCTION PROCESS FOR THE SAME AND RECYCLING METHOD FOR THE SAME, AS WELL AS WASTE-LIQUID TREATING METHOD  
A magnetic chemical absorbent according to the present invention is provided with a composite, which is constituted of a core substance comprising magnetite fine particles and schwertmannite being...
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...
US20100058893 ION EXCHANGE RESIN AND A PROCESS FOR THE USE THEREOF  
The present invention relates to a resin which is a copolymer of a polystyrene and a non-styrenic polymer, wherein the non-styrenic polymer includes the following subunit: Formula (I) wherein Rb...
US20110091365 PICOLYLAMINE RESINS  
The present application relates to novel gel-type or macroporous picolylamine resins which are based on at least one monovinylaromatic compound and at least one polyvinylaromatic compound and/or a...
US20100166626 SYSTEM AND METHOD FOR WASTEWATER TREATMENT  
The present disclosure is directed towards systems and methods for the treatment of wastewater. A system in accordance with one particular embodiment may include a vacuum filter band system...
US20100290962 FUNCTIONALISED MATERIALS AND USES THEREOF  
[(O3/2)SiCH2CH2SX]a[Si(O4/2)]b[WSi(O3/2)]c[VSi(O3/2)]d wherein X is selected from (CR1R2)eNR5CO NHR, (CR1R2)eNR5CSNHR, W when present is selected from (CR6R7)eZR, (CH2)3SR1(CH2)3NRR1, (CH2)eSR8,...
US20070122324 METHOD AND APPARATUS FOR PURIFICATION OF PROCESS SOLUTIONS  
A method and apparatus involving at least two distinct adsorbent media for adsorptive removal of impurities from a metal deposition composition such as an electroless or electrolytic deposition...
US20160244860 ALIPHATIC-AROMATIC HETEROCYCLIC COMPOUNDS AND USES THEREOF IN METAL EXTRACTANT COMPOSITIONS  
The invention relates to an aliphatic-aromatic heterocyclic compound A which comprises at least two heterocyclic rings B and C, to a metal extractant composition E comprising this...
US20160010177 METHOD FOR SEPARATING IMPURITIES FROM AN ACIDIC SOLUTION CONTAINING NICKEL AND COBALT AND/OR SCANDIUM  
Provided is a method for efficiently separating nickel, cobalt and/or scandium, and impurities from an acidic solution containing impurities such as manganese, iron, zinc, and aluminum. A...
US20150361524 Method for Purification of a Cobalt Containing Solution by Continuous Ion Exchange  
Methods are for purification of a cobalt containing solution from impurity metals by processing the feed solution through a continuous counter-current ion exchange process comprising of several...
US20150315674 NICKEL EXTRACTION METHOD  
In the present invention, nickel is selectively extracted from an acidic solution that contains a high concentration of manganese. This valuable metal extraction agent is represented by the...

Matches 1 - 47 out of 47