The present disclosure concerns processes and the combinations thereof for the enrichment and/or isolation of valuable metals from municipal solid waste incineration (MSWI) ash. Included are processes of size separation, froth floatation, magnetic separation, specific gravity separation, chemical separation, as well as the removal of lime. BY utilizing two or more, circuits of treatment are also provided that allow for fractionation of enriched valuable metals(s) from which purification thereof can be readily achieved.
The present disclosure concerns using microstructural engineering techniques to remove or reduce impurity elements from molten aluminum alloys, such as scrap. The impurities are removed by cooling molten aluminum, resulting in the formation of impurity-rich intermetallic compounds containing only one or more impurity elements as solid inclusions. Subsequent removal of impurity-rich intermetallic sediments by decantation, centrifuge, and filtration techniques can provide an economical method for removing the desired amount of impurities to meet the product specifications.
The present disclosure concerns processes and the combinations thereof for the enrichment and/or isolation of valuable metals from municipal solid waste incineration (MSWI) ash. Included are processes of size separation, froth floatation, magnetic separation, specific gravity separation, chemical separation, as well as the removal of lime. BY utilizing two or more, circuits of treatment are also provided that allow for fractionation of enriched valuable metals(s) from which purification thereof can be readily achieved.
A62D 3/33 - Processes for making harmful chemical substances harmless, or less harmful, by effecting a chemical change in the substances by reacting with chemical agents by chemically fixing the harmful substance, e.g. by chelation or complexation
A62D 3/30 - Processes for making harmful chemical substances harmless, or less harmful, by effecting a chemical change in the substances by reacting with chemical agents
4.
Selective Removal of Impurities from Molten Aluminum
The present disclosure concerns using microstructural engineering techniques to remove or reduce impurity elements from molten aluminum alloys, such as scrap. The impurities are removed by cooling molten aluminum, resulting in the formation of impurity-rich intermetallic compounds containing only one or more impurity elements as solid inclusions. Subsequent removal of impurity-rich intermetallic sediments by decantation, centrifuge, and filtration techniques can provide an economical method for removing the desired amount of impurities to meet the product specifications.
The present disclosure concerns a Gas-Assisted Microbubble Extraction (GAME) system with an innovative dispersion module that can be used to efficiently separate and purify base metals and rare earth elements from various sources. The GAME system utilizes a three phase system of a gas phase, an organic phase, and an aqueous phase to efficiently extract low concentration metals from a solution.
The present disclosure concerns a Gas-Assisted Microbubble Extraction (GAME) system with an innovative dispersion module that can be used to efficiently separate and purify base metals and rare earth elements from various sources. The GAME system utilizes a three phase system of a gas phase, an organic phase, and an aqueous phase to efficiently extract low concentration metals from a solution.
The present disclosure concerns a Gas-Assisted Microbubble Extraction (GAME) system with an innovative dispersion module that can be used to efficiently separate and purify base metals and rare earth elements from various sources. The GAME system utilizes a three phase system of a gas phase, an organic phase, and an aqueous phase to efficiently extract low concentration metals from a solution.
C22B 3/26 - Treatment or purification of solutions, e.g. obtained by leaching by liquid-liquid extraction using organic compounds
C22B 3/38 - Treatment or purification of solutions, e.g. obtained by leaching by liquid-liquid extraction using organic compounds containing phosphorus
C22B 3/14 - Extraction of metal compounds from ores or concentrates by wet processes by leaching in inorganic alkaline solutions containing ammonia or ammonium salts
The invention comprises methods and apparatuses for the electrorefining of Mg from Al or Mg alloy scrap. The invention utilizes the density and charge features of Mg present in a melted alloy to continuously extract Mg and Mg alloys from a melted Al alloy feed.
C04B 35/581 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxides based on borides, nitrides or silicides based on aluminium nitride
C04B 35/58 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxides based on borides, nitrides or silicides
C25C 3/00 - Electrolytic production, recovery or refining of metals by electrolysis of melts
C25C 3/04 - Electrolytic production, recovery or refining of metals by electrolysis of melts of magnesium
The invention comprises methods and apparatuses for the electrorefining of Mg from Al or Mg alloy scrap. The invention utilizes the density and charge features of Mg present in a melted alloy to continuously extract Mg and Mg alloys from a melted Al alloy feed.
The invention comprises methods and apparatuses for the electrorefining of Mg from Al or Mg alloy scrap. The invention utilizes the density and charge features of Mg present in a melted alloy to continuously extract Mg and Mg alloys from a melted Al alloy feed.
C04B 35/581 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxides based on borides, nitrides or silicides based on aluminium nitride
C04B 35/58 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxides based on borides, nitrides or silicides
C25C 3/00 - Electrolytic production, recovery or refining of metals by electrolysis of melts
C04B 35/65 - Reaction sintering of free metal- or free silicon-containing compositions
C04B 38/06 - Porous mortars, concrete, artificial stone or ceramic warePreparation thereof by burning-out added substances
C25C 3/36 - Alloys obtained by cathodic reduction of all their ions
C25C 7/00 - Constructional parts, or assemblies thereof, of cellsServicing or operating of cells
C04B 111/00 - Function, property or use of the mortars, concrete or artificial stone
11.
Method for the elimination of the atmospheric release of carbon dioxide and capture of nitrogen from the production of electricity by in situ combustion of fossil fuels
The in situ combustion of subterranean fossil fuels, e.g. coal, oil, and methane, and subsequent separation of combustion gases from nitrogen provides a method to minimize environmental pollution from combustion by-products through subterranean sequestration of carbon while using captured nitrogen as a heat transfer media vented to the surface and used for the production of electricity in mobile turbines for transfer to population centers or for use in energy banks such as the production of goods by electricity intensive manufacturing processes.
patents
