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| Number | Title | Issue Date |
| 7138209 | Positive active material for rechargeable lithium battery and method of preparing same Disclosed is a positive active material for a rechargeable lithium battery. The positive active material includes a core and a surface-treatment layer on the core. The core includes at least one lithiated compound and the surface-treatment layer includes at least on... | 11/21/2006 |
| 7011751 | Water treatment system A water treatment system for reducing the level of bacteria in a flow of water by creating an environment favorable for aerobic bacteria and unfavorable for anaerobic bacteria is disclosed. The system may include a method including intaking a flow of water, lowering... | 03/14/2006 |
| 6991773 | Boron-oxide and related compounds for hydrogen storage A hydrogen storage medium is provided, where the medium is comprised of boron oxide and closely related compounds such as orthoboric acid, metaboric acid, hydrated boric acid, and disodium borohydrate. The medium is substantially an amorphous glassy network, albeit ... | 01/31/2006 |
| 6977049 | Treatment process for industrial waste stream A process for treating an industrial waste stream containing a borane compound including contacting the industrial waste stream with a resin carrying an oxidation catalyst that is capable of oxidizing the borane compound to boric acid. ... | 12/20/2005 |
| 6939985 | Aryl borates The invention provides a process for covalently coupling organic compounds which comprises reacting an aromatic ring compound having a halogen or halogen-like substituent at a coupling position with a diboron derivative in the presence of a Group VIII metal catalyst... | 09/06/2005 |
| 6932540 | Permeable water reservoir covers Potable and process water reservoir covers are provided that exhibit an advantageous balance of rainwater drainage and light transmittance properties. The reservoir covers generally include one or more floatation panels formed from bonded foam particles that are adh... | 08/23/2005 |
| 6919036 | Nonaborate compositions and their preparation A family of borate compounds containing an isolated (finite) nonaborate anion with the structural formula [B9O12(OH)6]3−. Preferred amine nonaborate compounds have a resolved oxide formula of A2O.3B2 | 07/19/2005 |
| 6143264 | Boron compounds Process for the preparation of undecahydrododecaborate anions [B12 H.sub.(12-n) (XCN)n ]2- or [B12 H11 XH]2- or a nonahydrodecaborate anions [B10 H.sub.(12-n) (XCN)n ] | 11/07/2000 |
| 6025454 | Direct thermal synthesis and ceramic applications of poly(borazylenes) and borazine/polyhedral borane oligomers Direct thermal syntheses in the absence of catalyst, of poly(borazylenes) and of oligomers of borazine with polyhedral boranes, carboranes or heteroboranes are disclosed. The products of these syntheses are precursors to BN or other boron-containing ceram... | 02/15/2000 |
| 5993759 | Production of lithium carbonate from brines Lithium carbonate can be efficiently produced from a brine by (i) removing the boron therefrom, (ii) diluting the boron-free brine, (iii) removing magnesium from the diluted brine, and (iv) adding sodium carbonate to thereby precipitate lithium carbonate.... | 11/30/1999 |
| 5938969 | Fire suppressant powder A fire suppressant powder with particle sizes less than 5 μm is made by a chemical reaction between a gas or vapour of a first material and a vapour or an aerosol of a second material. For example an aerosol of sodium hydroxide droplets may be reacted wi... | 08/17/1999 |
| 5924047 | Method and apparatus for neutralizing and destroying pentaborane A method and apparatus for neutralizing pentaborane. A high-capacity pentaborane processing system is disclosed that may be employed at a variety of sites where pentaborane may be stored. Remote monitoring and worker interface with the pentaboraneis limit... | 07/13/1999 |
| 5869014 | Process for the production of purified, synthetic calcium borate A process for the production of calcium borate from boric acid; boric acid, obtained from any source, is reacted with a calcium compound, preferably calcium hydroxide, in an aqueous medium to obtain a suspension of solid calcium borate which is then separ... | 02/09/1999 |
| 5709841 | Waste stream treatment A waste water cleanup process where an aqueous solution of organoboron compounds is hydrolyzed to boric acid and the corresponding organic compound by treatment at a temperature of greater than 150° C. at a pressure sufficient to prevent substantial evap... | 01/20/1998 |
| 5676916 | Process for extracting the boron content in the brine of natural or industrial salt mines A process for extracting boron from brines of natural or industrial salt mines which includes the steps of reacting borates contained in the brine with a solution of hydrochloric acid and forming boric acid, cooling the brine containing boric acid, separa... | 10/14/1997 |
| 5634982 | Process for decontaminating surfaces of nuclear and fissile materials The present invention provides a process for decontaminating a surface of nuclear or fissile materials or both. The process includes impacting ortho-boric acid crystals onto the surface. The present invention also provides an abrasive media comprising ort... | 06/03/1997 |
| 5502142 | Direct thermal synthesis and ceramic applications of poly(borazylenes) Direct thermal syntheses in the absence of catalyst, of poly(borazylenes) and of oligomers of borazine with polyhedral boranes, carboranes or heteroboranes are disclosed. The products of these syntheses are precursors to BN or other boron-containing ceram... | 03/26/1996 |
| 5443732 | Boron isotope separation using continuous ion exchange chromatography This invention relates to a process of and apparatus for the continuous and selective separation of boron-10 (B10) isotope having high neutron capture cross-section from boron-11 (B10) isotope from a mixture of boron isotopes in a bo... | 08/22/1995 |
| 5182046 | Sodium borohydride composition and improved method of producing compacted sodium borohydride Improved sodium borohydride powder compositions have a silica-based anticaking agent. In a method wherein a mixture of sodium borohydride and an anti-caking agent are compacted under pressure, the process is improved, particularly in speed, by the use of ... | 01/26/1993 |
| 5084260 | Method for producing pure boric acid Pure boric acid is obtained by a high-yield method with a non-pollutant effluent discharge, comprising the following stages carried out in succession: a) dissolving impure boric acid in an aqueous vehicle to form an aqueous solution of impure boric acid; ... | 01/28/1992 |
| 4908196 | Boric oxide preparation method High-purity boric oxide which does not adhere to the reactor walls is obtained by: (a) gradually heat in boric acid, with the absence or substantial absence of fusion phenomena, at increasing temperature to a value not exceeding about 150° C.; operating ... | 03/13/1990 |
| 4816239 | Process for producing zirconium sols and gels, and process for producing zirconia using the same A process for producing acidic boratozirconium chloride sols which comprises: reacting a zirconium compound with a boron compound in molar ratios of B/Zr of 0.3-1.2 together with a compound of a metal M other than boron, the metal M being selected from th... | 03/28/1989 |
| 4804524 | Process for the preparation of boric acid from colemanite and/or howlite minerals A process for the preparation of boric acid from colemanite and/or howlite minerals basically comprising: treating the mineral with sulfuric acid in order to dissolve boron compounds from the minerals; separating a solution formed by the chemical reaction... | 02/14/1989 |
| 4801439 | Catalytic process for making compounds having a non-Lewis acid/base bond between a group IIIA metal and group VA nonmetal A process for preparing tractable preceramic precursors of Group IIIA metal/Group VA nonmetal compounds, such as BN, in which a first reactant containing a Group VA nonmetal to hydrogen bond, such as ammonia or an amine is reacted with a second reactant c... | 01/31/1989 |
| 4801404 | Boric acid compositions A novel suspension of boric acid comprising a concentrated, finely dispersed suspension of boric acid and a small amount of a soluble borate salt in an aqueous medium and a method of preparing the same.... | 01/31/1989 |
| 4756745 | Process to benefit colemanite and/or howlite minerals An improved process to benefit colemanite and/or howlite minerals comprising the stages of: treating mineral with sulfuric acid in order to dissolve boron compounds; separating the solution formed from the solids in suspension; reacting said solution with... | 07/12/1988 |
| 4756894 | Process for the obtainment of boric acid from colemanite and/or howlite minerals Improved process for obtaining boric acid from colemanite and/or howlite minerals basically comprising the stages of: treating the mineral with sulfuric acid to dissolve boron compounds; separating a solution thus formed from the solids in suspension; rea... | 07/12/1988 |
| 4557913 | Borax recovery using sodium metaborate and boric acid intermediates Sodium metaborate is recovered from a boron-containing first feed solution by extraction of the first feed solution with a 1,3-diol, followed by re-extraction with a solution of an alkali metal hydroxide. Boric acid is recovered from a boron-containing se... | 12/10/1985 |
| 4435184 | Method of recovering boric acid from waste-water concentrates of nuclear plants A waste-water concentrate containing boric acid together with chemical residues and radionuclides, especially from a nuclear power plant, is treated to recovering boric acid which can be recycled to the plant. According to the invention, the practically n... | 03/06/1984 |
| 4329154 | Method of recovering boric acid Boric acid is recovered from a water phase separated after hydrolyzing the reaction mixture obtained by oxidizing cyclohexane in the presence of a catalyst of boric acid. The method comprises (a) a concentration-crystallization step of concentrating the water ... | 05/11/1982 |
| 4324771 | Alcohol & hydroxyoxime extractant for boron & calcium from brines Boron and calcium are removed from brines with use of a mixture of from about 0.8 to 15 volume percent of an -hydroxy oxime extractant having the general formula: ##STR1## where R and R' are hydrocarbon radicals and R" is hydrogen or a hy... | 04/13/1982 |
| 4295986 | Low temperature catalytic reduction This invention relates to a method of utilizing alkali metal hydrides, such as sodium hydride and lithium hydride, under mild and safe conditions. The method may be used to produce bonds between hydrogen and elements such as carbon, silicon, germanium, ti... | 10/20/1981 |
| 4289662 | Method of making crude boric acid from borate and sulfuric acid For the conversion of sodium tetraborate (e.g. "5 mole borax" or sodium tetraborate pentahydrate) to a solid, particulate mass of flame-retardant chemical, using little or no water, 0.95 to 0.98 mole of sulfuric acid is added to convert the tetraborate to... | 09/15/1981 |
| 4287163 | Process for recovering lithium from brine by salting out lithium sulfate monohydrate A salting-out process for recovering lithium from brines which have been concentrated by solar or thermal evaporation. Soluble sulfate salts are added to the strong brine solutions containing lithium to yield lithium sulfate monohydrate. Subsequent treatm... | 09/01/1981 |
| 4285820 | Process for the treatment of a waste liquid containing boron compounds and organic compounds A process for the treatment of a waste liquid containing boron compounds and organic compounds, such as resulting from the oxidation of paraffins with oxygen in the presence of boron compounds, includes combusting the waste liquid in a furnace at a temper... | 08/25/1981 |
| 4238464 | Air revitalization materials Revitalization of air by circulation thereof through a quantity of a salt zirconium, titanium or boron and oxygen in the peroxide or higher positive valence state and by mixtures thereof with an alkali metal or alkaline earth hydroxide, oxide, peroxide, ... | 12/09/1980 |
| 4196177 | Process for producing boron compounds from borate ores High purity ammonium pentaborate or boric acid is produced from alkali metal and alkaline earth metal borate ores by a relatively non-corrosive technology requiring low energy, without polluting the environment, by treating finely ground borate ores with ... | 04/01/1980 |
| 4183904 | Recovery of boron from waste streams A method for the recovery of boron compounds from waste streams containing boric acid and combustible organic materials in water by incineration of the combustible organic materials and dehydration of the boric acid to boric oxide. Quenching of the boric ... | 01/15/1980 |
| 4156654 | Method for making crude boric acid from borate and sulfuric acid For the conversion of sodium tetraborate (e.g. "5 mole borax" or sodium tetraborate pentahydrate) to a solid, particulate mass of flame-retardant chemical, a slurrying amount of water (e.g. 3-5 moles per mole of tetraborate) is first added, so that a stab... | 05/29/1979 |
| 4059670 | Method for separation and enrichment of isotopes Boron or uranium isotopes can be chemically separated and enriched with high speed and with high separating efficiency by using weakly basic anion exchange fibers having a diameter of not more than 100 μ, an aspect ratio of at least 5 and an exchange cap... | 11/22/1977 |
