Class 423/632 - Iron

Subclass of Class 423 - Chemistry of inorganic compounds
Definition: Products or processes wherein the metal is iron.
No. of patents: 246
Last issue date: 05/22/2012

«First «Previous1 2 3 4 5 6 7 Next»Last»

Number	Title	Issue Date
8182786	Nano-sized particles, processes of making, compositions and uses thereof The present invention describes methods for preparing high quality nanoparticles, i.e., metal oxide based nanoparticles of uniform size and monodispersity. The nanoparticles advantageously comprise organic alkyl chain capping groups and are stable in air and in nonp...	05/22/2012
8092777	Process for producing anisotropic magnetic material and anisotropic magnetic material A process for producing an anisotropic magnetic material includes: preparing a feebly magnetic material capable of transforming into a magnetic material by a prescribed reaction, orienting the feebly magnetic material by imparting an external field to the feebly mag...	01/10/2012
8052958	Method for manufacturing metal oxide hollow nanoparticles and metal oxide hollow nanoparticles manufactured by the same Provided is a method for manufacturing a metal oxide hollow nanoparticles with excellent properties more easily and simply by a chemical vapor condensation employing metal β-diketonates as precursors, and a metal oxide hollow nanoparticles manufactured by the metho...	11/08/2011
8034320	Microwave treatment of magnetite iron ore pellets to convert magnetite to hematite A method and apparatus for producing iron ore pellets containing hematite is described. The pellets containing magnetite are exposed to microwave energy in a heat treatment furnace under oxidizing conditions to convert magnetite to hematite. ...	10/11/2011
7910085	Process for production of iron oxyhydroxide particles The process for production of iron oxyhydroxide particles according to the invention is characterized by comprising a step (A) in which a suspension containing iron(II) is prepared, and a step (B) in which fine bubbles with diameters of 0.05-500 μm are generated in...	03/22/2011
7744848	High purity magnetite formation process and apparatus, and product thereof A process of producing magnetite with a high purity of greater than 90% magnetite, more typically greater than 98% magnetite, by reducing powdered hematite into magnetite under maximum temperatures of about 700 to 1300° C. against a counter-current of or concurrent...	06/29/2010
7442362	Method for preparing iron oxides Highly pure iron oxides are prepared by reaction of metallic iron, in the form of microspheroidal particles or of scraps or cuttings, with an agitated aqueous solution of a mono- or polycarboxylic acid with a pKa of 0.5 to 6 relative to the first carboxyl and capabl...	10/28/2008
7438882	Gel and powder making A method of forming a gel and/or powder of a metallic oxide, metalloid oxide and/or a mixed oxide or resin thereof from one or more respective organometallic liquid precursor(s) and/or organometalloid liquid precursor(s) by oxidatively treating said liquid in a non-...	10/21/2008
7425234	Iron oxide pigments The invention relates to iron oxide pigments comprising an average solid body diameter of 0.1 to 500 μm, and to the production and use thereof. ...	09/16/2008
7410625	Process of making metal containing iron oxide and iron sulfide based nanoparticle materials A method and structure for making magnetite nanoparticle materials by mixing iron salt with alcohol, carboxylic acid and amine in an organic solvent and heating the mixture to 200-360° C. is described. The size of the particles can be controlled either by changing ...	08/12/2008
7407527	Synthesis of mono-disperse and highly crystalline nano-particles of metals, alloys, metal-oxides, and multi-metallic oxides without a size-selection process A synthetic method of fabricating highly crystalline and monodisperse nanoparticles of metals, multi-metallic alloys, monometallic oxides and multi-metallic oxides without a size selection process are disclosed. A typical synthetic method comprises the steps of, syn...	08/05/2008
7387671	Iron oxide pigments Iron Oxide pigment containing greater than 99% iron oxide, having a chloride content of less than 0.1% and a mean solid diameter of 10 to 500 μm and methods of making the same are disclosed. ...	06/17/2008
7357910	Method for producing metal oxide nanoparticles Method for producing metal oxide nanoparticles. The method includes generating an aerosol of solid metallic microparticles, generating plasma with a plasma hot zone at a temperature sufficiently high to vaporize the microparticles into metal vapor, and directing the...	04/15/2008
7351391	System and method for converting the spent remnants of a first pickling acid solution into a usable second pickling acid solution A system and method of economically converting a spent first pickling acid solution that contains hydrochloric acid, water and ferrous chloride into a suitable second pickling solution. Sulfuric acid is added to the first pickling acid solution. This produces a rege...	04/01/2008
7347893	Iron oxide pigments from mill scale The current invention relates to a method of manufacturing iron oxide pigments from mill scale. The mill scale is mixed with alien iron oxide and the resultant mixture is heated to a temperature of 200° C. to 900° C. in an oxidizing atmosphere to produce iron oxid...	03/25/2008
7314569	Treatment of arsenic-contaminated water using akaganeite adsorption The present invention comprises a method and composition using akaganeite, an iron oxide, as an ion adsorption medium for the removal of arsenic from water and affixing it onto carrier media so that it can be used in filtration systems. ...	01/01/2008
7297321	Supermicroporous metal oxides A new class of supermicroporous mixed oxides, with pore sizes in the 10-20 Å range has been prepared utilizing basic metal acetates. The reactions are carried out in non-aqueous solvent media to which an excess of amine is added. Hydrolysis of the reagents is effe...	11/20/2007
7294191	Pure-coloured, readily dispersible iron oxide red pigments with high grinding stability The present invention relates to pure-coloured, readily dispersible iron oxide red pigments having high grinding stability, to a process for preparing them, and to their use. ...	11/13/2007
7276224	Synthesis of nanoporous particles Methods of producing nanoporous particles by spray pyrolysis of a precursor composition including a reactive precursor salt and a nonreactive matrix salt are provided, wherein the matrix salt is used as a templating medium. Nanoporous aluminum oxide particles produc...	10/02/2007
7244868	Process for the dehydrogenation of an unsaturated hydrocarbon A process for the catalytic dehydrogenation of a first unsaturated hydrocarbon to form a second unsaturated hydrocarbon which has one olefinically unsaturated bond more than the first unsaturated hydrocarbon and otherwise an unchanged carbon skeleton, which process ...	07/17/2007
7235224	Process for preparing fine metal oxide particles Disclosed is a process for preparing fine metal oxide particles, comprising the following steps of reacting a reactant mixture comprising i) water, ii) at least one water-soluble metal nitrate and iii) ammonia or ammonium salt at 250–700° C. under 180–550 bar f...	06/26/2007
7235127	Reduction- and oxidation-stable iron oxide black pigments having high colour strength for colouring plastics and building materials, their preparation and their use The present invention relates to reduction- and oxidation-stable iron oxide black pigments having high color strength, the preparation thereof and the use thereof. ...	06/26/2007
7235117	Porous sulpha sponge iron compound, a process for preparing the same and a method for desulphurizing natural gas therewith This invention relates to a novel porous, sulpha sponge iron compound derived from haematite having the following composition given below: and having trace elements such as Au, Pt and Ag therein, by dissolving said haematite in concentrated hydrochloric acid. The ac...	06/26/2007
7226544	Magnetite particles Magnetite particles (and their manufacturing method) that enable suppression of blooming caused because of their large coercive force when used as magnetic toner, exert a light environment load, and are excellent in cost. The magnetite particles contain 0.1 to 1 mas...	06/05/2007
7223377	Process for producing micro-mesoporous metal oxide having regulated pores formed by novel template removal method The present invention is the method for preparation of transition metal oxide having micro-mesoporous structure whose average fine pores size is not less than 1 nm and not more than 2 nm comprising, adding and dissolving transition metal salt which is a precursor of...	05/29/2007
7217400	Preparation of iron compounds by hydrothermal conversion An apparatus and continuous process for the conversion of one solid iron compound to another solid iron compound in a heterogeneous suspension wherein the suspension is formed by dispersing a solid starting iron compound in a liquid that is continuously fed through ...	05/15/2007
7208134	Bioprocesses enhanced by magnetic nanoparticles One aspect of the present invention relates to magnetic nanoparticles colloidally stabilized in aqueous milieu by association with an organic phase. The organic phase may be either a fluorinated polymer or an organic hydrocarbon bilayer, wherein the two layers are c...	04/24/2007
7195749	Chemical-pressure tailoring of low-field, room temperature magnetoresistance in (Ca, Sr, Ba) FeMoO The room temperature, low field intergrain magnetoresistance (IMR) of the double perovsktite SrFe0.5MO0.5O3 is found to be highly tunable by doping either Ca or Ba into the Sr site. The dopant exerts a chemical pressure, changing the...	03/27/2007
7186395	Iron oxides with a higher degree of refining Iron oxides are upgraded by calcining at from 700 to 1200° C. ...	03/06/2007
7182929	Nanostructured multi-component and doped oxide powders and method of making same A method for producing nanostructured multi-component or doped oxide particles and the particles produced therein. The process includes the steps of (i) dissolving salts of cations, which are either dopants or components of the final oxide, in an organic solvent; (i...	02/27/2007
7160844	Proppants and their manufacture Small spheres, commonly referred to as proppants, are manufactured from sol-gel ceramics, preferably aluminosilicates or phosphates, and include chemical composites termed geopolymers. In the preferred manufacturing process, the required chemical components are blen...	01/09/2007
7144561	Method for the preparation of iron hydroxide, iron oxide hydrate or iron oxide from filter salts of dilute acid recovery Described is a method for the manufacture of iron hydroxide, iron oxide hydrate or iron oxide from filter salts from thin acid recovery, in which the filter salts are dissolved in water, the solution is adjusted to a pH of	12/05/2006
7128891	Process of making metal containing iron oxide and iron sulfide based nanoparticle materials A method and structure for making magnetite nanoparticle materials by mixing iron salt with alcohol, carboxylic acid and amine in an organic solvent and heating the mixture to 200–360 C is described. The size of the particles can be controlled either by changing t...	10/31/2006
7122168	Shape anisotropic metal oxide nanoparticles and synthetic method thereof In a metal oxide nanoparticle and a synthetic method thereof, and in particular to maghemite (γ-Fe2O3) nanoparticles usable as a superhigh density magnetic recording substance by having good shape anisotropy and magnetic characteristics, hemat...	10/17/2006
7118728	Method and apparatus for making ferrite material products and products produced thereby A method for making ferrite powder may include providing ferrite feed materials in a form of particles having different sizes and irregular shapes, and exposing the ferrite feed materials to a plasma to provide a more spherical shape to irregularly shaped particles ...	10/10/2006
7118727	Method of making oxide particles The present invention provides a process for producing particles, such as oxide nanoparticles, in a substantially water-free environment. The process involves mixing at least one metal compound of the formula MX(m−n) with at least one surfactant and at ...	10/10/2006
7105144	Method for producing ferrite hollow particles A method for producing ferrite hollow particles having a hollow structure formed by mutual sintering of ferrite powder, including: a) a step of mixing a resin powder and a ferrite powder of a particle size smaller than that of the resin powder under compaction there...	09/12/2006
7094301	Method of forming a joint A method of joining at least two sintered bodies to form a composite structure, including providing a first multicomponent metallic oxide having a perovskitic or fluorite crystal structure; providing a second sintered body including a second multicomponent metallic ...	08/22/2006
7087210	Single-step simple and economical process for the preparation of nanosized acicular magnetic iron oxide particles of maghemite phase The present invention relates to a single-step simple and economical process for the preparation of nanosized acicular magnetic iron oxide particles of maghemite phase of size ranging between 300–350 nm in magnetic field at room temperature by biomimetic route, an...	08/08/2006
7081234	Process of making hydrophobic metal oxide nanoparticles A process of treating metal oxide nanoparticles that includes mixing metal oxide nanoparticles, a solvent, and a surface treatment agent that is preferably a silane or siloxane is described. The treated metal oxide nanoparticles are rendered hydrophobic by the surfa...	07/25/2006

«First «Previous1 2 3 4 5 6 7 Next»Last»

PatentStorm

Quotables

PatentStorm News

Class 423/632 - Iron