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8999506 Method of one-pot synthesis of water-soluble nanoparticles exhibiting up-conversion luminescence  
The present invention relates to a method for synthesizing water-soluble particles, the method includes providing a solution including a lanthanide compound, a halide compound, and a first...
8986425 Method for recovering rare earth compounds, vanadium and nickel  
A method for recovering rare earth compounds, vanadium and nickel from waste vanadium-nickel catalysts, comprising steps of: acid leaching, by soaking waste vanadium-nickel catalysts into a...
8980202 Cerium containing nanoparticles prepared in non-polar solvent  
A method of making cerium-containing metal oxide nanoparticles in non-polar solvent eliminates the need for solvent shifting steps. The direct synthesis method involves: (a) forming a reaction...
8961645 Method and system for recovering bond coat and barrier coat materials from overspray and articles  
The disclosure relates generally to recovering bond coat materials and barrier coat materials from co-mingled mixtures of bond coat and barrier coat materials (e.g., plasma overspray waste), and...
8951486 Valuable metal extraction agent and valuable metal extraction method using said extraction agent  
The objective of the present invention is to selectively extract light rare earth metals, and by extension, europium, from an acidic solution containing a plurality of types of rare earth metal....
8940256 Method for recycling of rare earth and zirconium oxide materials  
A method is presented for recovery, in reusable form, of rare earth minerals and zirconia from waste materials containing them. The method includes: mixing an ammonium sulfate powder and a powder...
8936770 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...
8920773 Systems and methods for metal recovery  
Various embodiments provide a process roasting a metal bearing material under oxidizing conditions to produce an oxidized metal bearing material, roasting the oxidized metal bearing material under...
8894733 Method for recycling cerium oxide abrasive  
Disclosed is a method for recycling a cerium oxide abrasive. The method may include adding a strong alkali solution to a slurry waste of the cerium oxide abrasive, adding sodium fluoride to the...
8888892 Method for separating nickel and cobalt from active material contained in spent nickel-metal hydride battery  
A method for separating nickel, cobalt and a rare earth element from a material containing positive and negative electrode active materials of a nickel-metal hydride battery includes mixing a...
8851950 Recyclability of fluorescent lamp phosphors  
Improved recyclability of phosphors in fluorescent lamps is provided. A fluorescent lamp is constructed with phosphor particles having a specific surface area less than a certain predetermined...
8821817 Rare earth recovery from phosphor  
A method is described to produce high purity rare earth oxides of the elements La, Ce, Tb, Eu and Y from phosphor, such as waste phosphor powders originating in various consumer products. One...
8808660 Method of precipitation of metal ions  
The present invention relates to a method of precipitation of metal ions. Mineral(s), oxide(s), hydroxide(s) of magnesium and/or calcium are adopted as raw materials, and the raw material(s) is...
8727833 Cerium-based particle composition and the preparation thereof  
A cerium based particle composition comprises: 50-90% by weight of cerium oxide, and at least 10% by weight of lanthanum oxide. The method to prepare the particle composition comprises: one or...
8728418 Method for producing metal hydroxide fine particle  
An object of the present invention is to provide a method for producing a metal hydroxide fine particle, which can produce metal hydroxide fine particles with favorable crystallinity and small...
8628734 Method for recovery of rare earths from fluorescent lamps  
Method of recovery of rare earths from fluorescent lamps. The method comprises six steps. The individual process steps are: Mechanical separation of coarse components. Separation of the...
8623301 Solid oxide fuel cells, electrolyzers, and sensors, and methods of making and using the same  
The present invention provides solid oxide fuel cells, solid oxide electrolyzer cells, solid oxide sensors, components of any of the foregoing, and methods of making and using the same. In some...
8524176 Rare earth recovery from phosphor  
A method is described to produce high purity rare earth oxides of the elements La, Ce, Tb, Eu and Y from phosphor, such as waste phosphor powders originating in various consumer products. One...
8512654 Strontium cerate nanoparticle synthesis method  
A method for synthesizing strontium cerate (SrCeO3) nanoparticles is disclosed. Initially, ammonium cerium(IV) nitrate ((NH4)2Ce(NO3)6) and n-butanol (C4H10O) are reacted to synthesize...
8501124 Method for recovering rare-earth elements from a solid mixture containing a halophosphate and a compound of one or more rare-earth elements  
A method is described for recovering rare earth elements from a solid mixture including a halophosphate and at least one compound of one or more rare earth elements. The method includes: (a) acid...
8486354 Method for extracting rare earth material from monazite  
A method for extracting rare earth elements from monazite is disclosed. The method includes milling a mixture of monazite including phosphates and rare earth elements and sodium hydroxides inside...
8470270 Method for extracting rare earth elements from phosphogypsum  
The present invention relates to methods for recovering rare earth elements, in particular, from phosphogypsum. The claimed method comprises acidic extraction of rare earth elements from...
8470271 Process for chlorinating resources containing recoverable metals  
A process for chlorinating ore, slag, mill scale, scrap, dust and other resources containing recoverable metals from the groups 4-6, 8-12, and 14 in the periodic table. The process comprises: a)...
8454912 Adsorbent, preparation method thereof and Sr-90/Y-90 generator using the same  
Disclosed herein is an radioisotope adsorbent including a bifunctional organosilane compound, including an organosiloxane functional group and a phosphate group, bonded on the surface of silica...
8436052 Formulation and method for preparing gels comprising hydrous cerium oxide  
Formulations useful for preparing hydrous cerium oxide gels contain a metal salt including cerium, an organic base, and a complexing agent. Methods for preparing gels containing hydrous cerium...
8435472 Method of preparing nano-structured material(s) and uses thereof  
The present invention provides a method of preparing at least one nano-structured material of formula M1M2Xn comprising the step of treating: at least one compound having the formula...
8425654 Purification process for 153Gd produced in natural europium targets  
An alteration of the traditional zinc/zinc-amalgam reduction procedure which eliminates both the hazardous mercury and dangerous hydrogen gas generation. In order to avoid the presence of water...
8425871 Single phase yttrium phosphate having the xenotime crystal structure and method for its synthesis  
Methods for producing substantially single phase yttrium phosphate which exhibits the xenotime crystal structure are disclosed. The methods can be practiced without the use of high temperatures...
8361419 Cerium carbonate powder, method for preparing the same, cerium oxide powder made therefrom, method for preparing the same, and CMP slurry comprising the same  
Disclosed is a method for preparing cerium carbonate powder by mixing a cerium precursor solution with a carbonate precursor solution to cause precipitation, wherein at least one solvent used in...
8362869 Stable thermistor based on a composition comprising rare earth metal  
A thermistor based on a composition having the general formula (I): Re2-x-yCraMnbMcEyOz wherein Re is a rare earth metal or a mixture of two or more rare earth metals, M is a metal selected from...
8328893 Method of producing oxide particles, slurry, polishing slurry, and method of polishing substrate  
The present invention provides a method of producing oxide particles, comprising a step of mixing a metal carbonate with an acid to give a mixture, a step of heating the mixture to give a metal...
8329123 Method for preparing of cerium oxide powder for chemical mechanical polishing and method for preparing of chemical mechanical polishing slurry using the same  
The present invention relates to a method of preparing a cerium oxide powder for a CMP slurry and a method of preparing a CMP slurry using the same, and more particularly, to a method of preparing...
8323592 Method and apparatus for recovery of rare earth element  
Disclosed is a method for recovering a rare earth element from a rare earth alloy, which has improved extraction efficiency of the rare earth element from the rare earth alloy, and is applicable...
8303918 Method for preparing cerium carbonate powder using urea  
In a method for preparing cerium carbonate powder by mixing a cerium precursor solution with a urea solution and carrying out a precipitation reaction, wherein the cerium carbonate powder has a...
8263028 Methods of recovering rare earth elements  
Processes described include reacting a fresh or spent catalyst, or sorbent, with a solution containing an extracting agent (such as an acid or a base). Preferably, the catalyst contains both...
8246717 Process for the recovery of metals from used nickel/metal hydride batteries  
The present invention provides a process of recovering AB5 and/or AB2 as well as other metals from spent nickel metal hydride batteries from a slury by a series of separation steps utilizing the...
8216532 Methods of recovering rare earth elements  
Processes described include reacting a fresh or spent catalyst, or sorbent, with a solution containing an extracting agent (such as an acid or a base). Preferably, the catalyst contains both...
8182774 Eu(III) complex and nanosized EuSe crystal obtained therefrom  
A method to easily manufacture a nanosized EuSe crystal which has been conventionally difficult to be manufactured. Heating an Eu(III) complex whose general formula is represented by the following...
8173084 Yb:Y2O3 ceramic powders  
A high purity nano-sized Yb3+ doped Y2O3 (Yb:Y2O3) ceramic powder with a narrow size distribution and without hard agglomerates is provided. Also provided is a process for manufacturing the same...
8137645 Rare earth recovery from fluorescent material and associated method  
A method of recovering a rare earth constituent from a phosphor is presented. The method can include a number of steps (a) to (d). In step (a), the phosphor is fired with an alkali material under...
8124037 Perovskite materials for solid oxide fuel cell cathodes  
An improved LSCF 6428 perovskite material of the type La12zSrx+zCo0.2+aFe0.8+bO3−δ wherein x=0.4, z=(0-0.1), a=(0.01-0.04), and b=(0.05-0.15) for use as an SOFC cathode having increased electronic...
8088353 Group II metal sulfide phosphor precursor and method for producing phosphor  
A process for producing a Group II metal sulfide phosphor precursor, comprising adding to an organic solvent an aqueous solution containing at least one of a Group II element compound, a...
8048389 Cerium oxide-zirconium oxide-based mixed oxide and method for producing thereof  
The present invention provides a cerium oxide-zirconium oxide-based mixed oxide having superior platinum dispersibility and a suitable OSC, and a simple production process thereof. The cerium...
8021636 Preparation of rare-earth halide blocks  
The invention relates to a method of preparing a polycrystalline block of a halide of formula AeLnfX(3f+e) in which Ln represents one or more rare earths, X represents one or more halogen atoms...
7993612 Recovery of rare earth elements  
A process for recovering rare earth elements from a composite ore containing rare earth elements that includes a monazite group mineral and an apatite mineral, includes pre-leaching the composite...
7976798 Method for recovery of rare earths from fluorescent lamps  
Method for recovery of rare earths from fluorescent lamps. The method comprises six steps. •The individual process steps are: Mechanical separation of coarse components. •Separation of the...
7964164 Process for recovering titanium dioxide  
An improved process for recovering a titanium dioxide product from a titanium oxide-containing roasted mass of the type derived from roasting an ilmenite, anatase or perovskite ore by exploiting...
7959885 Nanoparticle synthesis by solvothermal process  
A solvothermal process for making inorganic nanoparticles is described. Inorganic nanoparticles can be produced by forming a suspension or solution comprising at least one group II-IV and...
7955529 Synthesis for catalysis of bifunctional perovskite compound  
This invention discloses the synthesis of a bifunctional La0.6Ca0.4Co1-xIrxO3 (x=0˜1) perovskite compound with a superb bifunctional catalytic ability for the oxygen reduction and generation in...
7943106 Rare earth nanorods  
A process for the production of nanorods containing a rare earth metal is disclosed. The process comprises the steps of: (a) increasing the pH of an aqueous solution of the formula MX3, where M is...

Matches 1 - 50 out of 348 1 2 3 4 5 6 7 >