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| Number | Title | Issue Date |
| 7976811 | Process for the manufacture of PO The invention relates to a process for the production of P4O6 of high purity by reacting oxygen, or a mixture of oxygen and an inert gas, with gaseous or liquid phosphorus to generate said reaction product in a reaction unit. The reaction produ... | 07/12/2011 |
| 7910080 | Phosphorous pentoxide producing methods A phosphorous pentoxide producing method includes forming a kiln bed using feed agglomerates with a calcium-to-silica mole ratio of from 0.5 to 1.0 and maintaining a bed temperature at or above 1260° C. along a portion of the bed length without exceeding 1380° C. ... | 03/22/2011 |
| 7378070 | Phosphorous pentoxide producing methods A phosphorous pentoxide producing method includes forming a kiln bed using feed agglomerates with a calcium-to-silica mole ratio of less than 1.0 and maintaining a bed temperature at or above 1180° C. along at least 50% of the bed length without exceeding 1380° C.... | 05/27/2008 |
| 7371830 | Method for separating biological material from a fluid using magnetic particles Magnetic particles are prepared containing a magnetic core coated with a glass layer having a substantially pore-free glass surface or having pores with a diameter of less than 10 nm. The particles are used for separating biological material such as nucleic acids. A... | 05/13/2008 |
| 7166264 | Processes for purifying phosphoric acid and for preparing phosphoric acid A process for purifying phosphoric acid includes removing volatile components from phosphoric acid rich in impurities to form a crude phosphoric acid liquid substantially free of volatile components; heating the crude phosphoric acid liquid to a temperature above 25... | 01/23/2007 |
| 7138102 | Method for manufacturing highly-crystallized double oxide powder A method for manufacturing a highly-crystallized double oxide powder composed of a single crystal phase which can be used as a phosphor material, a dielectric material, a magnetic material, etc. The method involves forming fine droplets of a raw material solution co... | 11/21/2006 |
| 7083768 | Processes for purifying phosphoric acid and for preparing phosphoric acid A process for purifying phosphoric acid includes removing volatile components from phosphoric acid rich in impurities to form a crude phosphoric acid liquid substantially free of volatile components; heating the crude phosphoric acid liquid to a temperature above 25... | 08/01/2006 |
| 6914030 | Synthesis of silicoaluminophosphates The invention is directed to a method of synthesizing silicoaluminophosphate molecular sieves using synthesis templates that contain at least one dimethylamino moiety, selected from one or more of N,N-dimethylethanolamine, N,N-dimethylpropanolamine, N,N-dimethylbuta... | 07/05/2005 |
| 6849275 | Calcium phosphate composition and method of preparing same A method for controlling the formation of a hydroxyapatite bone filler from dry calcium phosphate precursors in an aqueous solution uses coated sodium phosphate powder. The sodium phosphate powder is coated with a water soluble cellulose. Until the cellulose dissolv... | 02/01/2005 |
| 6702961 | Preparation of lithium-containing materials The invention provides novel lithium-mixed metal materials which, upon electrochemical interaction, release lithium ions, and are capable of reversibly cycling lithium ions. The invention provides a rechargeable lithium battery which comprises an electrod... | 03/09/2004 |
| 6685904 | Process for making phosphorus halides and oxyhalides Disclosed is a process for producing phosphorous trichloride, phosphorous pentachloride, or phosphorous tribromide by reacting phosphine gas with chlorine gas or bromine gas, in a mixture with hydrogen gas. The phosphine is dried and the reaction is perfo... | 02/03/2004 |
| 6680278 | Synthesis of silicoaluminophosphates The invention is directed to a method of synthesising silicoaluminophosphate molecular sieves using synthesis templates that contain at least one dimethylamino moiety. The use of dimethylamino moiety containing templates results in good quality SAPO molec... | 01/20/2004 |
| 6667270 | Bismuth-and phosphorus-containing catalyst support, reforming catalysts made from same, method of making and naphtha reforming process Bismuth- and phosphorus-containing catalyst supports, naphtha reforming catalysts made from such supports, methods of making both support and catalyst, and a naphtha reforming process using such catalysts.... | 12/23/2003 |
| 6613926 | Perchloramido phosphonyl reagents and analogs thereof Novel compounds are provided in the form of nucleoside pyrophosphate and triphosphate analogs. In these analogs, the pyrophosphate or triphosphate group is replaced with a moiety that is isosterically and electronically identical thereto, but is hydrolyti... | 09/02/2003 |
| 6558709 | Calcium phosphate composition and method of preparing same A method for controlling the formation of a hydroxyapatite bone filler from dry calcium phosphate precursors in an aqueous solution uses coated sodium phosphate powder. The sodium phosphate powder is coated with a water soluble cellulose. Until the cellul... | 05/06/2003 |
| 6462022 | Lisinopril compositions having large-particle DCPD The present invention relates to a pharmaceutical composition comprising lisinopril and dibasic calcium phosphate dihydrate (DCPD), produced by a process comprising mixing lisinopril and DCPD with a specific surface area of less than 1.5 m2 g | 10/08/2002 |
| 6440380 | Preparation of phosphorus (I) oxides, phosphorus (III) oxides, and lower hydrides of phosphorus by catalytic reduction of phosphorus (V) oxides A process for the manufacture of phosphorus (I) species, phosphorus (III) species, and lower hydrides of phosphorus from phosphorus (V) species is provided. Particularly, the present invention is directed to a process for the preparation of P(I) species, ... | 08/27/2002 |
| 6238637 | Process and apparatus for preparation of phosphorus oxyacids from elemental phosphorus A process for the preparation of an oxyacid of phosphorus comprising contacting elemental phosphorus with water in the presence of a catalyst effective to promote oxidation of phosphorus by reaction with water. The use of a noble metal catalyst such as Pd... | 05/29/2001 |
| 6136221 | Phosphation reagent The invention relates to a process for producing a unique phosphation reagent and to a simple, single-stage process utilizing is reagent to produce alkyl phosphate esters having high monoalkyl phosphate content in combination with low dialkyl phosphate, t... | 10/24/2000 |
| 6126719 | Recovery of group III element component from group III-V waste materials The present invention is directed to an apparatus and method for recovering the group III elemental component of a group III-V material waste material. The method includes heating, under a reduced pressure, solid waste materials which contain group III-V ... | 10/03/2000 |
| 6023006 | Method of manufacturing compounds of the monazite type, doped or not doped with actinides and application to the packaging of radioactive waste high in actinides and in lanthanides The invention relates to a method of manufacturing compounds of the Monazite type, doped or not doped with actinides, to a method of packaging radioactive waste, high in actinides and in lanthanides by incorporating this waste in a confining matrix based ... | 02/08/2000 |
| 5824433 | High conductivity electrolyte solutions and rechargeable cells incorporating such solutions This invention relates generally to electrolyte solvents for use in liquid or rubbery polymer electrolyte solutions as are used, for example, in electrochemical devices. More specifically, this invention relates to sulfonyl/phospho-compound electrolyte so... | 10/20/1998 |
| 5771472 | Process for the conditioning of radioactive waste using phosphosilicated apatites as the confinement matrix The invention relates to a process for the conditioning of radioactive waste using silicated apatites as the confinement matrix. This process consists of incorporating the waste (1) into a phosphosilicated apatite-based confinement matrix (3) e.g. complying wi... | 06/23/1998 |
| 5688378 | Photoassisted oxidation of species in solution The invention relates to methods and processes for the photoassisted oxidation of dissolved species such as arsenic, iron, phosphorous and sulphur. Each aspect of the invention involves supplying to a solution including the species to be oxidized, an oxid... | 11/18/1997 |
| 5670687 | Process for preparing SiH-containing organochlorosilanes The invention relates to a process for preparing organosilanes which contain at least one Si-bonded hydrogen in the presence of a phosphonium catalyst, the phosphonium catalyst itself and also a process for its preparation.... | 09/23/1997 |
| 5549878 | Processes for the disposal and recovery of phossy water Phossy water is a toxic liquid waste that is generated when elemental phosphorus is manufactured, stored, or processed into phosphorus-containing products. Elemental phosphorus may be prsent as a solution, as colloidal particles, and as settleable particl... | 08/27/1996 |
| 5525319 | Boron silicates, aluminum silicates, and phosphosilicates for purification of DNA Boron silicates, phosphosilicates and aluminum silicates useful as binding surfaces for DNA purification. These compounds allow DNA to be bound and eluted under native conditions (i.e., in the absence of chaotropes or alcohols) using only water, low salt ... | 06/11/1996 |
| 5520899 | Process for preparing boron, aluminum, and phosphorus silicates for purification of DNA A process for preparing borosilicate, aluminosilicate, or phosphosilicate comprising preparing a mixture of SiCl4 with a specific molar ratio of BCl3, AlCl3, or PCl3 ; cooling said mixture to zero degrees; and a... | 05/28/1996 |
| 5503816 | Silicate compounds for DNA purification The present invention relates to a silicon-containing material which exhibits sufficient hydrophilicity and sufficient electropositivity to bind DNA from a suspension containing DNA and permit elution of the DNA from the material. Generally, the hydrophil... | 04/02/1996 |
| 5368741 | Treatment of aqueous phosphorus wastes Aqueous phosphorus wastes from the electric furnace production of phosphors and containing heavy metal bearing particulates are treated with lime whereby the phosphorus is converted into useful phosphorus compounds and the heavy metals rendered sufficient... | 11/29/1994 |
| 5366945 | Supported heteropoly acid catalysts There is provided a catalyst comprising a heteropoly acid, such as phosphotungstic acid, supported on a mesoporous crystalline material, such as M41S. A particular form of this M41S support is designated as MCM-41. There is also provided a method for prep... | 11/22/1994 |
| 5362465 | Method for oxidizing hypophosphite ion A method for oxidizing a hypophosphite ion, comprised of bringing a solution containing a hypophosphite ion into contact with at least one catalyst selected from the group consisting of boron-nickel compounds, boron-cobalt compounds, and metallic palladiu... | 11/08/1994 |
| 5286469 | Metal-phosphorus-nitrogen polymers, metal-phosphorus compounds and methods of preparation thereof The invention provides metal-phosphorus-nitrogen polymer compounds and methods for their preparation at low temperatures using readily available starting materials. One group of compounds, metal-phosphazene polymers, are comprised of repeating units of [P... | 02/15/1994 |
| 5082640 | Method of making luminescent grade boron phosphate Luminescent grade, small particle size boron phosphate is prepared by reacting diammonium phosphate with an excess amount of boric acid and washing the product with ammonium hydroxide solution.... | 01/21/1992 |
| 4980142 | Preparation of phosphorous acid Phosphorous acid is formed by gaseous phase oxidation of phosphorus with water vapour to form predominantly P2 O3 and dissolving the P2 O3 so-formed in water. The P2 O3 also can be recovere... | 12/25/1990 |
| 4902491 | Phosphate feed material for phosphorus electric furnaces and production of same Compacted shapes of phosphatic material, suitable as a charge for a phosphorus furnace, are produced by compacting a mixture of calcined phosphate fines and phosphoric acid. The compacted shapes are conveniently produced on a roll briquetting press.... | 02/20/1990 |
| 4902490 | Essentially pure/colorless P2 NOCl5 Essentially pure and colorless N-(dichlorophosphoryl)trichlorophosphazene [P2 NOCl5 ] is prepared/purified under relatively moderate conditions, by reacting phosphorous pentachloride with ammonium chloride, treating the resulting med... | 02/20/1990 |
| 4889702 | Process for removing metallic constituents from dust obtained during the electrothermal production of yellow phosphorus Metallic constituents, especially heavy metal constituents are removed from dust electrostatically separated from a gas mixture consisting substantially of carbon monoxide and phosphorus in vapor form obtained during the electrothermal production of yello... | 12/26/1989 |
| 4874593 | Conversion of pyrophoric P4 -containing material to P2 O5 material A process for treating a pyrophoric P4 -containing material to convert it to a substantially non-pyrophoric P2 O5 material is described. The process comprises supplying streams of fluid P4 -containing material a... | 10/17/1989 |
| 4871526 | Heterogeneous catalytic oxidation of organophosphonate esters A method of catalytic oxidation of organophosphonate esters includes introducing the organophosphonate esters in gaseous form into contact with a molybdenum catalyst and effecting such introduction in the presence of oxygen to cause the organophosphonate ... | 10/03/1989 |
