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| Number | Title | Issue Date |
| 8157889 | Magnetic metal powder and method of producing the powder A magnetic metal powder having fluidity is provided which is composed of FePt nanoparticles synthesized by the polyol synthesis method that possess fct (face-centered tetragonal) structure and exhibit crystal magnetic anisotropy from immediately after synthesis. Spe... | 04/17/2012 |
| 7314561 | Method for purifying water An integrated system and method for removing excess nutrients from water, for removing the nutrients from the removal site, for enhancing soil, and for producing pulp and paper products includes bioremediating water to be treated with cultured algae or another suita... | 01/01/2008 |
| 7288196 | Plant matter packaging method An integrated system and method for removing excess nutrients from water, for removing the nutrients from the removal site, for enhancing soil, and for producing pulp and paper products includes bioremediating water to be treated with cultured algae or another suita... | 10/30/2007 |
| 7285256 | Precious metal recovery using thiocyanate lixiviant Precious metal-containing mineral material is subjected to an acidic thiocyanate leach to dissolve the precious metal as a precious metal-thiocyanate complex. A feed of the thiocyanate leach solution may include a large molar ratio of ferric iron to thiocyanate. Pre... | 10/23/2007 |
| 7273552 | Bioremediation Bioremediatory fungi, such as Trichoderma harzianum, which have been found to catabolise cyanide, are capable of detoxifying contaminated environmental areas in association with a suitable rhizosphere. ... | 09/25/2007 |
| 7267773 | Integrated system and method for purifying water, producing pulp and paper, and improving soil quality An integrated system and method for removing excess nutrients from water, for removing the nutrients from the removal site, for enhancing soil, and for producing pulp and paper products includes bioremediating water to be treated with cultured algae or another suita... | 09/11/2007 |
| 7268273 | Recovering metals from soil The invention relates to recovering metals, such as nickel and cobalt, by phytomining or phytoextracting soils rich in metals wherein the desired metal is selectively accumulated in hyperaccumulator plants by adjusting the soil pH. The metals are ultimately recovere... | 09/11/2007 |
| 7262075 | High-aspect-ratio metal-polymer composite structures for nano interconnects A low-temperature process that combines high-aspect-ratio polymer structures with electroless copper plating to create laterally compliant MEMS structures. These structures can be used as IC-package interconnects that can lead to reliable, low-cost and high-performa... | 08/28/2007 |
| 7250072 | Removal of sulfur-containing impurities from volatile metal hydrides Method for the purification of a volatile metal hydride comprising obtaining a volatile metal hydride feed containing one or more acidic impurities, one of which is a sulfur-containing impurity; contacting the feed with an alkaline material and reacting at least a p... | 07/31/2007 |
| 7214516 | Bacterial effects on metal accumulation by plants The invention includes methods for (1) extracting metals from soil by the use of plants that extract and accumulate the metal and adding bacteria to the soil that enhances the ability of the plants to extract the metal, and (2) preparing soil for extraction of a met... | 05/08/2007 |
| 7156894 | Method for recovering metal values from concentrates of sulfide minerals A method of recovering precious metal values from refractory sulfide ores is provided. The method includes the steps of separating clays and fines from a crushed refractory sulfide ore, forming a heap from the refractory sulfide ore, producing a concentrate of refra... | 01/02/2007 |
| 7083829 | Vehicle having atmosphere pollutant treating surface A method and apparatus for treating the atmosphere comprising moving a vehicle through the atmosphere, the vehicle having at least one atmosphere contacting surface and a pollutant treating composition located on said surface. A specific embodiment comprises coating... | 08/01/2006 |
| 7069690 | Compositions and methods for removing pollutants from contaminated wafer with a fern plant Processes and materials for phytoremediating water-containing sites which have been contaminated with pollutants such as arsenic, phosphorous, or other metals. Fern plants can be used to accumulate pollutants from contaminated water-containing sites having an aqueou... | 07/04/2006 |
| 7065920 | Contaminant removal by additional ferns Processes, methods, materials and compositions for phytoremediating contaminated waters, which have been contaminated with pollutants such as arsenic. Fern plants that include Pteris and non-Pteris fern plants can be used to accumulate pollutants from ... | 06/27/2006 |
| 7066982 | Contaminant removal by ferns via foliar-application and excised/ground fronds Processes, methods, materials and compositions for phytoremediating contaminated waters, which have been contaminated with pollutants such as arsenic, phosphorous, or other metals. Fern plants can be used to accumulate pollutants from contaminated water, including a... | 06/27/2006 |
| 7049492 | subspecies for cadmium and zinc recovery A cadmium and zinc hyperaccumulating subspecies from Thlaspi caerulescense and methods for removing or recovering cadmium and zinc from soils by cultivating the Thlaspi caerulescense subspecies on soils containing cadmium and zinc. ... | 05/23/2006 |
| 7034202 | Heavy metal phytoremediation The invention provides methods and compositions for heavy metal phytoremediation, including plants which are genetically engineered to overexpress glutamylcysteine synthetase (ECS) and thereby provide enhanced heavy metal accumulation. In various embodiments, the pl... | 04/25/2006 |
| 7018593 | Base metal recovery from a tailings dump by bacterial oxidation A method of recovering base metal from a tailings dump which includes the steps of: aerating a surface layer of the dump; adjusting the pH and the moisture content of the surface layer to provide conditions favourable for bacterial oxidation of sulphide minerals; al... | 03/28/2006 |
| 6974896 | Trace element phytoremediation The invention provides methods and compositions for trace element, particularly heavy metal phytoremediation, including plants which are genetically engineered to overexpress a sulfate assimilation pathway enzyme gene and thereby provide enhanced trace element accum... | 12/13/2005 |
| 6958435 | Methods for accumulating selenium in edible brassica A method of producing edible Brassica plants capable of accumulating significant concentrations of selenium in edible portions of the plant. Edible Brassica plants were grown in an environment containing selenium, the plants were cultivated under condi... | 10/25/2005 |
| 6846346 | Sulfatization process for metal extraction from sulfide ores The invention provides a hydrometallurgical process for treating metal-containing sulfide ores and concentrates, comprising reacting said metal-containing sulfide with concentrated sulfuric acid at a temperature of between about 300° C. and 400° C. in the presence... | 01/25/2005 |
| 6818042 | Method of mineral concentrate redress A slurry of particulate ore material is concentrated to form a smeltable concentrate on a re-concentrator table arranged to separate concentrate ore at a concentrate discharge from middlings and tailings. The table is set such that the concentrate forms a smeltable ... | 11/16/2004 |
| 6786948 | Method for phytomining of nickel, cobalt and other metals from soil The recovery of nickel, cobalt and other metals by phytomining is described. Plants of the Alyssum genus are grown in nickel rich soil. The uptake of nickel is enhanced by maintaining specific soil conditions, including a concentration of calcium between (but not in... | 09/07/2004 |
| 6656247 | Selective precipitation of manganese from magnesium-containing solutions A process is provided for selectively precipitating and removing manganese relative to magnesium from an acidic solution, preferably barren of one or more of cobalt, nickel, copper and zinc, but containing appreciable amounts of manganese, magnesium, and ... | 12/02/2003 |
| 6458183 | Method for purifying ruthenium and related processes The present invention provides a method for purifying ruthenium sources to obtain high purity ruthenium metal without the need for high temperature processing, expensive reagents, complex series of wet processes, or expensive equipment. According to the p... | 10/01/2002 |
| 6432166 | Dust control Process for the control of dust on ore handling points comprising applying to the ore an aqueous solution of an alkyl polyglucoside having an average of from 8 to 12 carbon atoms and a degree of polymerization of from 1.4 to 1.6.... | 08/13/2002 |
| 6375909 | Method for the removal of mercury and nitrogen oxides from combustion flue gas The process is by injection of calcium chloride into the combustor and lowering the flue gas temperature in sufficient time to enhance oxidation of mercury and nitrogen oxides into more soluble products prior to their absorption in a wet scrubber. The add... | 04/23/2002 |
| 6372156 | Methods of chemically converting first materials to second materials utilizing hybrid-plasma systems In one aspect, the invention encompasses a method of chemically converting a first material to a second material. A first plasma and a second plasma are formed, and the first plasma is in fluid communication with the second plasma. The second plasma compr... | 04/16/2002 |
| 6368381 | Autoclave using agitator and sparge tube to provide high oxygen transfer rate to metal-containing solutions The autoclave of the present invention includes an impeller having a conduit to recirculate or introduce a molecular oxygen-containing gas into the slurry. The outlets for the gas can be located in the blades of the impeller for thorough dispersion of the... | 04/09/2002 |
| 6358895 | Fluid treatment process Non-aqueous functional fluids are treated to avoid degradation or to recondition degraded fluids by a process which comprises contacting the fluid with an anionic ion-exchange resin and subsequently removing water by vacuum dehydration. The fluids can be ... | 03/19/2002 |
| 6302942 | Methods for removing pollutants from contaminated soil materials with a fern plant The invention provides processes and materials for phytoremediating materials which has been contaminated with arsenic, phosphorous, or other metals. In a preferred embodiment, the subject invention provides fern plants, which accumulate arsenic from cont... | 10/16/2001 |
| 6302940 | Chemical synthesis of monodisperse and magnetic alloy nanocrystal containing thin films A method and structure for forming magnetic alloy nanoparticles includes forming a metal salt solution with a reducing agent and stabilizing ligands, introducing an organometallic compound into the metal salt solution to form a mixture, heating the mixtur... | 10/16/2001 |
| 6280500 | Methods for removing pollutants from contaminated soil materials with a fern plant The subject invention provides materials and methods for remediating soil and/or water which has been contaminated with arsenic, phosphorous, or other metals. In a preferred embodiment, the subject invention provides fern plants which accumulate arsenic f... | 08/28/2001 |
| 6254662 | Chemical synthesis of monodisperse and magnetic alloy nanocrystal containing thin films A method and structure for forming magnetic alloy nanoparticles includes forming a metal salt solution with a reducing agent and stabilizing ligands, introducing an organometallic compound into the metal salt solution to form a mixture, heating the mixtur... | 07/03/2001 |
| 6231636 | Mechanochemical processing for metals and metal alloys A set of processes for preparing metal powders, including metal alloy powders, by ambient temperature reduction of a reducible metal compound by a reactive metal or metal hydride through mechanochemical processing. The reduction process includes milling r... | 05/15/2001 |
| 6207443 | Method for initiating heap bioleaching of sulfidic ores The process of the present invention "jump starts" heap biooxidation of sulfides by incorporating a previously biooxidized material into the heap. The process can be used to recover precious and/or base metals from sulfidic ores and concentrate.... | 03/27/2001 |
| 6131835 | Methods for treating ores Metals are rendered analyzable, extractable or recoverable from materials, such as complex or refractory ores, by applying shear deformation forces to the materials. The shear deformation forces are generated by methods such as mechanical attrition. Throu... | 10/17/2000 |
| 6107065 | Nonstirred bioreactor for processing refractory sulfide concentrates and method for operating same A method of biooxidizing sulfide minerals in a nonstirred bioreactor is provided. According to the disclosed method, a concentrate of sulfide minerals is coated onto a plurality of substrates, such as coarse ore particles, lava rock, gravel or rock contai... | 08/22/2000 |
| 6083730 | Nonstirred bioreactor for processing refractory sulfide concentrates and method for operating same A method of biooxidizing sulfide minerals in a nonstirred bioreactor is provided. According to the disclosed method, a concentrate of sulfide minerals is coated onto a substrate, such as coarse ore particles, lava rock, gravel or rock containing mineral c... | 07/04/2000 |
| 5968229 | Purification of metal containing solutions A process for the purification of solutions containing metals comprising neutralization of the solution, reduction of Fe(III) present, and elimination of ingoing dissolved zinc, whereby the ingoing solution containing metals is neutralized using magnetite... | 10/19/1999 |
