MOLYCORP MINERALS, LLC Patent applications |
Patent application number | Title | Published |
20140007773 | COMPOSITION AND PROCESS FOR MAKING THE COMPOSITION - An aggregate composition and process for making the aggregate composition. The aggregate composition includes an insoluble rare earth-containing compound and a polymer binder. The insoluble rare earth-containing compound can include one or more of cerium, lanthanum, or praseodymium. A suitable insoluble cerium-containing compound can be derived from cerium carbonate or a cerium salt. In a specific embodiment, the aggregate composition consists essentially of one or more cerium oxides, the polymer binder and optionally a flow aid. A process for making the composition includes mixing the insoluble rare earth-containing compound with a polymer binder to form a mixture, and subjecting the mixture to mechanical, chemical and/or thermal treatment to adhere the rare earth compound to the polymer binder. The aggregate composition can be used in a variety of fluid treatment applications to remove one or more chemical and biological contaminants in a fluid. | 01-09-2014 |
20130032529 | RARE EARTH-CONTAINING FILTER BLOCK AND METHOD FOR MAKING AND USING THE SAME - This disclosure relates to a rare earth-containing filter block, more particularly to a rare earth-containing filter block and methods for making and using the rare earth-containing filter block. | 02-07-2013 |
20130001094 | Lanthanide-Mediated Water Splitting Process for Hydrogen and Oxygen Generation - The application generally relates to a process for generating hydrogen, oxygen or both from water. More particularly, the application generally relates to a lanthanide-mediated electrochemical and/or photoelectrochemical process for generating hydrogen, oxygen or both from water. | 01-03-2013 |
20120328681 | CERIA FOR USE AS AN ANTIMICROBIAL BARRIER AND DISINFECTANT IN A WOUND DRESSING - The present invention relates to protecting a human from an infection using a disinfecting agent as described herein and a method for use thereof, more particularly to a rare earth-containing device for protecting a wound and a method for use thereof. | 12-27-2012 |
20120261611 | RARE EARTH REMOVAL OF PHOSPHORUS-CONTAINING MATERIALS - This disclosure relates generally to methods and rare earth-containing additives for removing inorganic and organic phosphorus-containing target materials. | 10-18-2012 |
20120261347 | NON-METAL-CONTAINING OXYANION REMOVAL FROM WATERS USING RARE EARTHS - The present disclosure is directed to the use of rare earth-containing additives, particularly rare earth-containing additives comprising rare earths of plural oxidation states, to remove non-metal-containing oxyanions. | 10-18-2012 |
20120261345 | RARE EARTH REMOVAL OF HYDRATED AND HYDROXYL SPECIES - This disclosure relates generally to methods and rare earth-containing additives for removing target materials in the form of hydroxides, carbonates, hydrates, or oxyhydroxyls from, a typically aqueous, liquid medium. | 10-18-2012 |
20120238683 | COMPOSITION AND PROCESS FOR MAKING THE COMPOSITION - An aggregate composition and process for making the aggregate composition. The aggregate composition includes an insoluble rare earth-containing compound and a polymer binder. The insoluble rare earth-containing compound can include one or more of cerium, lanthanum, or praseodymium. A suitable insoluble cerium-containing compound can be derived from cerium carbonate or a cerium salt. In a specific embodiment, the aggregate composition consists essentially of one or more cerium oxides, the polymer binder and optionally a flow aid. A process for making the composition includes mixing the insoluble rare earth-containing compound with a polymer binder to form a mixture, and subjecting the mixture to mechanical, chemical and/or thermal treatment to adhere the rare earth compound to the polymer binder. The aggregate composition can be used in a variety of fluid treatment applications to remove one or more chemical and biological contaminants in a fluid. | 09-20-2012 |
20120223022 | CONTAMINANT REMOVAL FROM WATERS USING RARE EARTHS - The present disclosure is directed to the use of rare earth-containing additives, particularly rare earth-containing additives comprising rare earths of plural oxidation states, to remove, particularly from recreational waters, various target materials, such as disinfectant by-products and precursors thereof, phosphates, and organophosphates. | 09-06-2012 |
20120187337 | RARE EARTH REMOVAL OF PHOSPHORUS-CONTAINING MATERIALS - This disclosure relates generally to methods and rare earth-containing additives for removing inorganic and organic phosphorus-containing target materials. | 07-26-2012 |
20120187047 | RARE EARTH REMOVAL OF HYDRATED AND HYDROXYL SPECIES - This disclosure relates generally to methods and rare earth-containing additives for removing target materials in the form of hydroxides, carbonates, hydrates, or oxyhydroxyls from, a typically aqueous, liquid medium. | 07-26-2012 |
20120138530 | METHOD AND APPARATUS FOR REMOVING ARSENIC FROM A SOLUTION - A method and apparatus for separating arsenic from an aqueous solution containing arsenic. The method includes the steps of contacting an arsenic-containing solution with a first portion of fixing agent to remove at least a portion of the arsenic. An arsenic-laden fixing agent is separated from the solution and the partially depleted solution is contacted with a second portion of fixing agent. The fixing agent can include a high surface area insoluble compound containing one or more of cerium, lanthanum, or praseodymium. Following removal of the arsenic, the arsenic-depleted solution can be further processed to separate a recoverable metal through metal refining. The arsenic-laden fixing agent can be filtered to recover and recycle a filtrate to the solution for additional treatment, as well as using a partially saturated fixing agent to remove arsenic from fresh solution. An arsenic-containing solution can be formed from arsenic-containing solids such as contaminated soils, industrial byproducts and waste materials. | 06-07-2012 |
20120138529 | METHOD AND APPARATUS FOR RECOVERING A METAL AND SEPARATING ARSENIC FROM AN ARSENIC CONTAINING SOLUTION - A method and apparatus for recovering a metal and separating arsenic from an arsenic-containing solution. The method includes contacting the arsenic-containing solution with a fixing agent that comprises a rare earth compound to produce an arsenic-depleted solution and an arsenic-laden fixing agent. The fixing agent comprises a rare earth-containing compound that can include cerium, lanthanum, or praseodymium. The fixing agent is separated from the arsenic-depleted solution and a recoverable metal is separated from one or more of the arsenic-containing solution and the arsenic-depleted solution. Recoverable metals can include metal from Group IA, Group IIA, Group VIII and the transition metals. The arsenic-containing solution can be formed by contacting an arsenic-containing material with a leaching agent. Arsenic-depleted solids formed during the leach can also be separated and recovered. An apparatus of the invention can include two or more arsenic fixing units configured to conduct the method on a continuous basis. | 06-07-2012 |
20120138528 | METHOD AND APPARATUS FOR REMOVING ARSENIC FROM AN ARSENIC BEARING MATERIAL - A method and apparatus for removing arsenic from an arsenic-bearing material. The method includes the steps of contracting an arsenic-bearing material with an arsenic leaching agent to form an arsenic-containing solution and arsenic-depleted solids. The leaching agent can be an inorganic salt, an inorganic acid, an organic acid, and/or an alkaline agent. The arsenic-depleted solids are separated from the arsenic-containing solution, which is contacted with a fixing agent to produce an arsenic-depleted solution and an arsenic-laden fixing agent. The fixing agent comprises a rare earth-containing compound that can include cerium, lanthanum, or praseodymium. The fixing agent is then separated from the arsenic-depleted solution. A recoverable metal in the arsenic-depleted solids, arsenic-containing solution or arsenic-depleted solution can be separated and recovered. Recoverable metals can include metal from Group IA, Group IIA, Group VIII and the transition metals. | 06-07-2012 |
20120103909 | PARTICULATE CERIUM DIOXIDE AND AN IN SITU METHOD FOR MAKING AND USING THE SAME - This disclosure relates generally to methods and compositions for removing contaminants from streams and is particularly concerned with methods and compositions for removing contaminants from municipal wastewaters, municipal drinking waters and recreational waters. The present disclosure is to particulate cerium, more particularly to particulate cerium (IV) formed by an in situ oxidative process and to a method for removing target materials from a target material-containing stream using particulate cerium formed in situ. | 05-03-2012 |
20120074071 | PROCESS FOR TREATING WATERS AND WATER HANDLING SYSTEMS TO REMOVE SCALES AND REDUCE THE SCALING TENDENCY - The present disclosure includes an embodiment to a method for treating water and/or a water handling system to decrease deposit formation and/or to remove a deposit. More particularly, to a method for treating water and/or a water handling system with one or more rare earths to decrease deposit formation and/or to remove a deposit. Struvite is an example of deposit material that can be removed and/or deposition inhibited by treating a water and/or water handling system with one or more earths. | 03-29-2012 |
20120031827 | AGGLOMERATION OF HIGH SURFACE AREA RARE EARTHS - The subject invention relates generally to friable metal oxide agglomerates and specifically to agglomerates containing high surface area rare earth-containing materials and a polymeric binder. | 02-09-2012 |
20110309017 | METHODS AND DEVICES FOR ENHANCING CONTAMINANT REMOVAL BY RARE EARTHS - Embodiments are provided for removing a variety of contaminants using both rare earth and non-rare earth-containing treatment elements. | 12-22-2011 |
20110303871 | REMEDIATION OF PHYSIOLOGICALLY ACTIVE COMPOUNDS FROM WASTE WATER - The present invention is directed to the removal of one or more selected target materials, in particular a physiologically active compound contaminant, from various streams using a rare earth fixing agent. | 12-15-2011 |
20110272273 | LANTHANIDE-MEDIATED PHOTOCHEMICAL WATER SPLITTING PROCESS FOR HYDROGEN AND OXYGEN GENERATION - The application generally relates to a process for generating hydrogen, oxygen or both from water. More particularly, the application generally relates to a lanthanide-mediated photochemical process for generating hydrogen, oxygen or both from water. | 11-10-2011 |
20110182786 | 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 salt, a mineral acid for use in recovering valuable metals. | 07-28-2011 |
20110110817 | RARE EARTH REMOVAL OF COLORANTS - The present disclosure is directed to a method and system for contacting a colorant-contaminated aqueous solution with a rare earth-containing composition to form a treated solution substantially depleted of the colorant. | 05-12-2011 |
20110033337 | APPARATUS AND PROCESS FOR TREATING AN AQUEOUS SOLUTION CONTAINING BIOLOGICAL CONTAMINANTS - Process, apparatus and article for treating an aqueous solution containing biological contaminants. The process includes contacting an aqueous solution containing a biological contaminant with an aggregate composition comprising an insoluble rare earth-containing compound to form a solution depleted of active biological contaminants. The aggregate includes more than 10.01% by weight of the insoluble rare earth-containing compound. The insoluble rare earth-containing compound can include one or more of cerium, lanthanum, or praseodymium. A suitable insoluble cerium-containing compound can be derived from a cerium carbonate, a cerium oxalate or a cerium salt. The composition can consist essentially of cerium oxides, and optionally, a binder and/or flow aid. The aggregate includes no more than two elements selected from the group consisting of yttrium, scandium, and europium when the aggregate is to be sintered. Although intended for a variety of fluid treatment applications, such applications specifically include removing or deactivating biological contaminants in water. | 02-10-2011 |
20110002971 | CERIA FOR USE AS AN ANTIMICROBIAL BARRIER AND DISINFECTANT IN A WOUND DRESSING - The present invention relates to protecting a human from an infection using a disinfecting agent as described herein and a method for use thereof, more particularly to a rare earth-containing device for protecting a wound and a method for use thereof. | 01-06-2011 |
20100258448 | USE OF A RARE EARTH FOR THE REMOVAL OF ANTIMONY AND BISMUTH - The invention relates generally to a process for removing one or more contaminants from an electrolytic solution and more particularly to a process for removing the one or more contaminants contained in an electrorefining solution using rare earth metals. | 10-14-2010 |
20100255559 | APPARATUS AND PROCESS FOR TREATING AN AQUEOUS SOLUTION CONTAINING BIOLOGICAL CONTAMINANTS - Process, apparatus and article for treating an aqueous solution containing biological contaminants. The process includes contacting an aqueous solution containing a biological contaminant with an aggregate composition comprising an insoluble rare earth-containing compound to form a solution depleted of active biological contaminants. The aggregate includes more than 10.01% by weight of the insoluble rare earth-containing compound. The insoluble rare earth-containing compound can include one or more of cerium, lanthanum, or praseodymium. A suitable insoluble cerium-containing compound can be derived from a cerium carbonate, a cerium oxalate or a cerium salt. The composition can consist essentially of cerium oxides, and optionally, a binder and/or flow aid. The aggregate includes no more than two elements selected from the group consisting of yttrium, scandium, and europium when the aggregate is to be sintered. Although intended for a variety of fluid treatment applications, such applications specifically include removing or deactivating biological contaminants in water. | 10-07-2010 |
20100243542 | APPARATUS AND PROCESS FOR TREATING AN AQUEOUS SOLUTION CONTAINING BIOLOGICAL CONTAMINANTS - Process, apparatus and article for treating an aqueous solution containing biological contaminants. The process includes contacting an aqueous solution containing a biological contaminant with an aggregate composition comprising an insoluble rare earth-containing compound to form a solution depleted of active biological contaminants. The aggregate includes more than 10.01% by weight of the insoluble rare earth-containing compound. The insoluble rare earth-containing compound can include one or more of cerium, lanthanum, or praseodymium. A suitable insoluble cerium-containing compound can be derived from a cerium carbonate, a cerium oxalate or a cerium salt. The composition can consist essentially of cerium oxides, and optionally, a binder and/or flow aid. The aggregate includes no more than two elements selected from the group consisting of yttrium, scandium, and europium when the aggregate is to be sintered. Although intended for a variety of fluid treatment applications, such applications specifically include removing or deactivating biological contaminants in water. | 09-30-2010 |
20100230359 | POROUS AND DURABLE CERAMIC FILTER MONOLITH COATED WITH A RARE EARTH FOR REMOVING CONTAMINANTS FROM WATER - The invention is directed generally to a porous and durable ceramic filter monolith coated with one or more rare earth-containing compositions for removing contaminants from a fluid, particularly for removing one or more contaminants from water. | 09-16-2010 |
20100187178 | Process for removing and sequestering contaminants from aqueous streams - Contaminants, including arsenic, are removed from water and other aqueous feeds preferably by (1) treating the feed with a compound containing a rare earth (e.g., cerium in the +4 oxidation state, preferably cerium dioxide), to oxidize contaminants in the +3 oxidation state to arsenic in the +5 oxidation state and (2) removing the contaminants in the +5 oxidation state from the aqueous phase, normally by contacting the treated feed with a rare earth-containing precipitating agent. | 07-29-2010 |
20100168498 | APPARATUS AND PROCESS FOR TREATING AN AQUEOUS SOLUTION CONTAINING CHEMICAL CONTAMINANTS - Apparatus, process and article for treating an aqueous solution containing a chemical contaminant. The process includes contacting an aqueous solution containing a chemical contaminant with an aggregate composition comprising an insoluble rare earth-containing compound to form a solution depleted of chemical contaminants. The insoluble rare earth-containing compound can include one or more of cerium, lanthanum, or praseodymium. A suitable insoluble cerium-containing compound can be derived from a cerium carbonate, cerium oxalate and/or a cerium salt. The aggregate composition can include more than 10.01% by weight of the insoluble rare earth-containing compound, and in a particular embodiment consists essentially of one or more cerium oxides, and optionally a binder and/or flow aid. Although intended for a variety of fluid treatment applications, such applications specifically include removing or detoxifying chemical contaminants in water. | 07-01-2010 |
20100155330 | TARGET MATERIAL REMOVAL USING RARE EARTH METALS - The present invention is directed to the removal of one or more selected target materials from various streams using a rare earth metal-containing fixing agent. | 06-24-2010 |
20100044317 | WATER PURIFICATION DEVICE FOR ARSENIC REMOVAL - Arsenic is removed from water and other aqueous feeds by (1) treating the feed with a compound containing cerium in the +4 oxidation state, preferably cerium dioxide, to oxidize arsenic in the +3 oxidation state to arsenic in the +5 oxidation state and (2) removing the arsenic in the +5 oxidation state from the aqueous phase, normally by contacting the treated feed with alumina or other precipitating agent containing cations in the +3 oxidation state. | 02-25-2010 |