Matches 1 - 26 out of 26


Match Document Document Title
US20120282156 MODIFICATION OF COPPER/IRON SELECTIVITY IN COPPER SOLVENT EXTRACTION SYSTEMS  
Processes for improving copper/iron selectivity in a solvent extraction circuit by contacting an acidic aqueous solution containing dissolved copper and iron ions with a solvent extraction...
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...
US20080175772 MORE EFFICIENT ETHER MODIFIERS FOR COPPER EXTRACTANT FORMULATIONS  
The disclosed invention provides water-insoluble, water-immiscible extraction reagent compositions comprising an extractant reagent comprising one or more aldoxime extractants, optionally...
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...
US20140363356 EXTRACTION OF GOLD  
Disclosed is a process for extracting gold ions from an aqueous phase containing gold ions. The process comprises contacting the aqueous phase with an extractant phase consisting of or comprising...
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...
US20130091990 METHOD FOR RECOVERING PRECIOUS METALS AND COPPER FROM LEACH SOLUTIONS  
The present disclosure is directed to a process for recovering a precious metal from a pregnant leach solution using a resin extractant. The precious metal is eluted from the loaded resin using an...
US20100189612 SYSTEM AND METHOD FOR SEPARATING TELLURIUM FROM CADMIUM WASTE  
The present invention relates to a method and system for recovery of waste.
US20140271415 MODIFIED OXIME EXTRACTANT FORMULATION  
A solvent extraction composition that is particularly useful for the extraction of metals from a solution containing the metals. The solvent extraction composition includes an...
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...
US20090074639 CONTROLLED COPPER LEACH RECOVERY CIRCUIT  
The present invention relates generally to a process for controlled leaching and sequential recovery of two or more metals from metal-bearing materials. In one exemplary embodiment, recovery of...
US20100215556 NANOPORE REACTIVE ADSORBENTS FOR THE HIGH-EFFICIENCY REMOVAL OF WASTE SPECIES  
A nanopore reactive adsorbent composite material, which may be a porous adsorbent comprising a chemically surface face modified gel, has a composition and micro structure, which integrals ion...
US20100092357 METAL EXTRACTANT REAGENTS HAVING INCREASED RESISTANCE TO DEGRADATION  
A solvent extraction composition and process for using the composition is provided. The composition contains up to 70% by weight of at least one orthohydroxyarylketoxime extractant and/or at least...
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...
US20120228151 Method and Technique Employing a Novel Extractant to Enhance Recovery of Gold and Palladium from Hydrochloric Acid Media  
An extraction component enabling the concurrent recovery of gold and/or palladium selectively from a hydrochloric acid media containing the base metals and other contaminants. The disclosed...
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...
US20130302225 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...
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...
US20130152741 SYSTEM AND METHOD INCLUDING MULTI-CIRCUIT SOLUTION EXTRACTION FOR RECOVERY OF METAL VALUES FROM METAL-BEARING MATERIALS  
The present disclosure relates to a metal recovery process comprising a solvent extraction process. In an exemplary embodiment, the solution extraction system comprises a plant with a first and...
US20110229385 METHOD OF LEACHING COPPER SULFIDE ORE  
A method of leaching copper sulfide ore includes leaching copper from copper sulfide ore using a sulfuric acid solution comprising iodide ion and iron (III) ion surplus to the iodide ion as a...
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...
US20140097141 SYNTHESIS OF LAYERED METAL SULFIDE ION-EXCHANGERS  
Methods for the synthesis of compounds of the formula A2xMxSn3-xS6, where x has a value in the range from 0.5 to 1; A is Li+, Na+, K+, or Rb+; and M is Mg2+, Mn2+, Zn2+, or Fe2+, are provided....
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...
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...

Matches 1 - 26 out of 26