Matches 51 - 100 out of 175 < 1 2 3 4 >


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7204971 Shaped microcomponents via reactive conversion of biologically-derived microtemplates  
The present invention is focused on a revolutionary, low-cost (highly-scaleable) approach for the mass production of three-dimensional microcomponents: the biological reproduction of...
7172741 Method for reprocessing spent nuclear fuel  
It is an object to increase a reprocessing speed of spent nuclear fuel and to obtain uranium having a high purity and a plutonium mixture reusable as it is at a low cost through a simple...
7160525 Monodisperse noble metal nanocrystals  
Nanoparticle compositions of noble metals, and methods of making them, are described. The nanoparticle compositions are made by reacting a salt or complex of a noble metal, such as Au, Ag, Cu or...
7128840 Ultrasound enhanced process for extracting metal species in supercritical fluids  
Improved methods for the extraction or dissolution of metals, metalloids or their oxides, especially lanthanides, actinides, uranium or their oxides, into supercritical solvents containing an...
7067104 Shaped microcomponent via reactive conversion of biologically-derived microtemplates  
The present invention is focused on a revolutionary, low-cost (highly-scaleable) approach for the mass production of three-dimensional microcomponents: the biological reproduction of...
6911570 Method for fixating sludges and soils contaminated with mercury and other heavy metals  
The invention relates to a method, composition and apparatus for stabilizing mercury and other heavy metals present in a particulate material such that the metals will not leach from the...
6855301 Synthesis method for producing carbon clusters and structured carbon clusters produced thereby  
The present invention includes carbon synthesis devices and systems. The invention also includes machines and instruments using those aspects of the invention. The present invention also includes...
6733559 Method of reducing the availability of heavy metals in plants and the use of cross linked poly(meth)acrylates in said method  
A process for reducing plant availability of heavy metals in substrates such as soils wherein the substrates treated with cross-linked polymethacrylates. The poly (meth)acrylates can be worked...
6645444 Metal nanocrystals and synthesis thereof  
A process for forming metal nanocrystals involves complexing a metal ion and an organic ligand in a solvent and introducing a reducing agent to reduce a plurality of metal ions to form the metal...
6641641 Method for producing metal or metal compound comprising process of treating with fluorine and adjusted raw material used therein  
An object of the present invention is to provide a method for preventing concentration of a radioactive substance in a generated extraction residue in a method of producing tantalum, niobium, or a...
6582669 Method for producing ceramic powders utilizing gas-displacing or gas-generating additives  
A method is described for producing a ceramic powder, in which at least one ceramic base powder or ceramic slurry is subject to a heat treatment for generating an intermediate product from which...
6500395 Method for removing metals from air pollution control residues  
A method for the treatment of air pollution control (APC) residues comprising the steps of washing the residues at least one time in an alkaline solution maintained at a pH not lower than about...
6482371 Process for separation of heavy metals and halogen from waste material or residue  
A process for the separation of heavy metal and halogen from unwanted waste material or residue. Halogen is selectively extracted or washed out from the waste material. Metal is selectively...
6461581 Clathrate compounds and manufacturing method thereof  
The present invention provides a clathrate compound which can be used as a thermoelectric material, a hard material, or a semiconductor material. Silicon or carbon are formed into a clathrate...
6451273 Method of producing an active mineral liquid from granite  
A method of extracting active mineral liquid from a rock such as granite is described. This method comprises charging an extraction vessel with finely divided granite at ambient temperature and...
6409978 Method of removing impurities from mineral concentrates  
A process for removing impurities contained in the crystal lattice of minerals, comprising the steps of forming a mixture of a mineral capable of structurally reorganizing its crystal lattice...
6379919 Method for isolating thiocyanate resistant bacteria  
The present invention relates to microbiological processes for the oxidative treatment of refractory gold and base metal ores and concentrates, and specifically, to bacterial inoculums for use in...
6342189 Method for total precipitation of valuable metals from an acid leaching solution  
A method for the total precipitation of valuable metals, such as copper, nickel, zinc, cobalt, etc., from a leaching solution that has been acidified with sulphuric acid and that is substantially...
6203768 Process for the production of ultrafine particles  
A new, cost effective process for the production of ultrafine particles which is based on mechanically activated chemical reaction of a metal compound with a suitable reagent. The process involves...
6193941 Process for producing a metallurgical raw material from oil containing heavy metals  
Besides a synthesis gas, a metallurgical raw material is to be produced from an oil containing heavy metals. To do this, the oil is partially oxidized and the heavy metal-containing soot is...
5993756 Sodium tungstate preparation process  
A method for the preparation of sodium tungstate by the oxidation of hard metal scrap and/or heavy metal scrap in a molten salt mixture of hydroxide and sodium sulfate.
5907037 Cellulosic ion-exchange medium, and method of making and using the same  
A cellulosic cationic ion-exchange composition is formed by sulfonation of activated cellulose having of high surface area characteristics, using an acid such as concentrated H2 SO4. The...
5744107 Process for removing heavy metals from soil  
Heavy metals are efficiently removed from contaminated soil by a process which comprises leaching or washing the soil with a mild leachant solution. The leachant solution is comprised of an...
5660774 Process for making a sintered body from ultra-fine superconductive particles  
A process for producing a sintered body from untra-fine superconductive particles. In the first step of this process, a ceramic precursor material containing yttrium, barium and copper cations, a...
5622628 Titanium dioxide slurries concentration  
A novel method for the production of titanium dioxide slurries having a high solids content comprises subjecting an aqueous slurry of titanium dioxide to cross-flow filtration to produce a slurry...
5490976 Continuous ore reaction process by fluidizing  
In a continuous process for reacting particulate ore with a liquid reagent in a counter-current vertical column the improvement comprising: (a) providing an upper and lower chamber for the...
5472675 Polyvinyl alcohol agglomeration agents for mineral bearings ores  
An agglomerating agent for use in the heap leaching of mineral bearing ores is disclosed. The agglomerating agent is a polyvinyl alcohol of moderate to high molecular weight which is partially or...
5468427 Process for making ultra-fine ceramic particles  
A process for producing ultra-fine ceramic particles in which droplets are formed from a ceramic precursor mixture containing a metal cation, a nitrogen-containing fuel, a solvent, and an anion...
5405588 Process for removing cadmium from scrap metal  
A process for the recovery of a metal, in particular, cadmium contained in scrap, in a stable form. The process comprises the steps of mixing the cadmium-containing scrap with an ammonium...
5366891 Biochemical solubilization of toxic salts from residual geothermal brines and waste waters  
A method of solubilizing metal salts such as metal sulfides in a geothermal sludge using mutant Thiobacilli selected for their ability to metabolize metal salts at high temperature is disclosed,...
5354688 Anaerobic microbial remobilization of coprecipitated metals  
A process is provided for solubilizing coprecipitated metals. Metals in wastestreams are concentrated by treatment with an iron oxide coprecipitating agent. The coprecipitated metals are...
5334362 Process for the production of disposable products from metal chlorides in a titanium dioxide chloride process  
In order to treat metal chlorides obtained in the form of dust collector solids in the production of titanium dioxide by the chloride process, the inert constituents, especially particulate coke,...
5078977 Cyanide recovery process  
A process for removing and recovering cyanide from a cyanide-containing mixture. The process includes the steps of adjusting the pH of the cyanide-containing mixture to between about 6 to about...
5077020 Metal recovery process using waterglass  
Sodium silicate (waterglass) is added to a waste process stream containing metal to form a waterglass sludge containing the metal contaminants. The waterglass sludge matrixed with the metal is...
5045115 Method for treating solid residues containing heavy metals from combustion plants  
In the treatment of solid residues containing heavy metals from combustion plants, the heavy-metal compounds dissolved after washing-out and subsequently precipitated are separated from the...
5007589 Process for simultaneously leaching and fine milling a subdivided source material  
A source material in the form of an ore, mineral, concentrate, calcine, or reclaimed tailings is subjected to fine milling in a stirred mill having an impeller rotatable in a grinding chamber...
4943377 Method for removing dissolved heavy metals from waste oils, industrial wastewaters, or any polar solvent  
Precipitation (conversion) of dissolved heavy metals in waste effluents is achieved with the addition and mixing of a solution of sodium polythiocarbonate with a solution containing dissolved...
4885098 Sonic method for facilitating the removal of solid particles from a slurry  
An elastic bar member is coupled to an orbiting mass oscillator and the entire assembly is suspended from a cable or the like such that the bar member has freedom of lateral motion and is nakedly...
4883532 Sonic method for facilitating the extraction of minerals from ore in a leachant  
An elastic bar member is clamped to an orbiting mass oscillator and the entire assembly is suspended from a cable or the like such that the bar member has freedom of lateral motion and is nakedly...
4871518 Recovery or removal of uranium by the utilization of acorns  
This invention can treat a uranium-containing solution of high or low concentration and/or the waste generated from uranium conversion processes, etc. It is characterized by the use of acorns,...
4820343 Process for transferring metal ions using microporous membranes  
The invention relates to a process for transferring metal ions from an aqueous liquid to a non-aqueous liquid and then to another aqueous liquid. The non-aqueous liquid contains one or more...
4820340 Method for slag fuming and reduction  
The slag fuming process for the recovery of metal values from a slag from the smelting of non-ferrous metal concentrates is carried out more efficiently with lower quantities of fuel-reductant by...
4755270 Method of processing solutions  
A method of processing waste solutions containing metal salts or complex involves applying ultra-sonic vibrations to a container in which the solution is placed and treating the solution or the...
4695447 Destruction of inorganic hazardous wastes  
Hazardous waste containing inorganic compounds which contain heavy metals or particular hazardous anionic groups or which are hazardous halides or non-metal oxides or sulfides is contacted with...
4670244 Process for reducing metal ions in aqueous solutions  
Metal ions are reduced from a higher to a lower oxidation stage using ferrophosphorus as the reductant.
4539096 Process for recovering oil and metals from oil shale  
A process for the recovery of oil and metal values from oil shale which includes the step of acid leaching in combination with selective extraction of nitrogen components from the resultant...
4533526 Process for recovering polymetal compounds discharged from a submarine hydrothermal source and devices for carrying out the same  
A process and device for recovering polymetal compounds discharge from a submarine hydrothermal source comprises the use of a device comprising a bell-shaped collector member provided with a...
4528164 Concurrent production of anhydrous non-metal and metalloid halides and ceramic materials with the aid of magnesium halide  
Molten alkaline earth metal halides are used to convert highly stable oxides into the corresponding anhydrous halides. Usually a third reactant, such as silica, is added in order to bind the basic...
4503017 Method of purifying waste aqueous solutions from heavy metals  
A process for purifying an acid aqueous solution containing heavy metals by adding sulfide ions to said acid aqueous solution at a first pH lower than 3.4, precipitating a first heavy metal,...
4483827 Hydrometallurgical process for the recovery of valuable metals from sulfidic, silicate-containing raw materials  
The invention relates to a process for the recovery of valuable metals from sulfidic, silicate-containing raw materials by slurrying the raw material in water, by subjecting the slurry to a...

Matches 51 - 100 out of 175 < 1 2 3 4 >