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公开(公告)号：DE102011003502A1
公开(公告)日：2012-08-02
申请号：DE102011003502
申请日：2011-02-02
Applicant: EVONIK DEGUSSA GMBH
Inventor： KATUSIC STIPAN PROF , KRES PETER , HERZOG HARALD , YILMAZ NUH
Abstract: Umhüllte Eisenoxidpartikel, die nadelförmig sind, einen Maghemit und Magnetit umfassenden Kern und eine ein Metalloxid oder Metalloidoxid umfassende Hülle aufweisen. Sie werden hergestellt, indem man in einer Hochtemperaturzone nadelförmige FeOOH-Partikel und gegebenenfalls Hüllstoffpartikel enthaltendes Aerosol in einer reduzierenden Gasatmosphäre zur Reaktion bringt, und nachfolgend das erhaltene Stoffgemisch mit einer Menge eines sauerstoffenthaltenden Gases in Kontakt bringt, die ausreicht das Stoffgemisch vollständig zu oxidieren und gegebenenfalls mehrere Hüllstoff-Ausgangverbindungen hinzu gibt, das Stoffgemisch nachfolgend abkühlt und den Feststoff abtrennt. Silikonkautschuk enthaltend die umhüllten Eisenoxidpartikel.
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2.发明专利
公开(公告)号：DE102006035136A1
公开(公告)日：2008-01-31
申请号：DE102006035136
申请日：2006-07-29
Applicant: EVONIK DEGUSSA GMBH
Inventor： KATUSIC STIPAN , KROELL MICHAEL , HEBERER STEFAN , KRES PETER , ZIMMERMANN GUIDO
Abstract: Oxide particle comprises zinc and manganese, where the ratio of zinc to manganese is 15-300 atom.%, the amount of zinc, manganese and oxygen is at least 99 wt.%, the oxide particle exist in the form of aggregated primary particle and exhibits a Brunauer-Emmett and Teller surface of 10-60 m 2>/g, manganese exists in and on the primary particle and signals of zinc oxide are detectable only in the X-ray diffractogram. Independent claims are included for: (1) preparing oxide particle containing zinc and manganese comprising introducing at least an oxidizable organic zinc compound solution and at least an oxidizable organic manganese compound into an organic solvent or its mixture, separately or in form of a combined solution, by means of an atomizing gas under the formation of an aerosol, introducing aerosol into a high temperature zone at 500-2500[deg]C with oxygen or an oxygen-containing gas for reacting, where the quantity of oxygen should be sufficient to transfer the organic zinc compound and the organic manganese compound completely, cooling the hot gas and the solid product and subsequently separating the solid product of the gases and optionally reacting the solid product with the surface modifying agent; (2) a dispersion comprising zinc and manganese containing oxide particle; (3) a coating composition comprising zinc and manganese containing oxide particle or the dispersion and at least a binding agent; and (4) a sun protection formulation comprising zinc and manganese containing oxide particle or the dispersion.
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公开(公告)号：DE10343728A1
公开(公告)日：2005-04-21
申请号：DE10343728
申请日：2003-09-22
Applicant: DEGUSSA
Inventor： KATUSIC STIPAN , KRAEMER MICHAEL , KRES PETER , MIESS HORST , ZIMMERMANN GUIDO , ALBERS PETER
Abstract: Pyrogenically prepared zinc oxide powder having a BET surface area of from 10 to 200 m 2 /g, which is in the form of aggregates, the aggregates being composed of particles having different morphologies, and 0-10% of the aggregates being in a circular form, 30-50% being in an ellipsoidal form, 30-50% being in a linear form and 20-30% being in a branched form. It is prepared by reacting a starting mixture containing zinc vapour, a combustible gas and steam or a mixture of steam and carbon dioxide in a flame with an oxygen-containing gas in an oxidation zone, cooling the hot reaction mixture in a quenching zone and separating the solid material from the gas stream, the amount of oxygen in the oxidation zone being greater than the amount necessary for the complete oxidation of the combustible gas and the zinc vapour. The zinc oxide powder can be used as a constituent of sun protection compositions for protection against UV radiation.
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公开(公告)号：DE10337199A1
公开(公告)日：2005-03-10
申请号：DE10337199
申请日：2003-08-13
Applicant: DEGUSSA
Inventor： KATUSIC STIPAN , HERBERER STEFAN , KRAEMER MICHAEL , KRES PETER , KROELL MICHAEL , STAAB EDWIN
Abstract: Polycrystalline cerium oxide powder (I) in the form of aggregates of primary particles has a specific surface area of 70-150 m 2>/g, average primary particle diameter of 5-20 nm and average projected aggregate diameter (equivalent circle diameter, ECD) of 20-100 nm. Independent claims are included for: (1) the preparation of (I); (2) dispersions containing (I); and (3) the production of the dispersions.
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公开(公告)号：DE10129376A1
公开(公告)日：2003-01-09
申请号：DE10129376
申请日：2001-06-20
Applicant: DEGUSSA
Inventor： SERVATY SABINE , MICHAEL GUENTHER , HEYER CHRISTIANE , KATUSIC STIPAN , MIESS HORST , KRES PETER
Abstract: Indium-tin oxide (I) is claimed, with physical-chemical parameters comprising average particle size 1-200 nm (tunneling electron microscope); BET surface area 0.1-300 m /g (DIN 66131); structure (x-ray diffraction) cubic indium oxide, tetragonal tin oxide; mesopores 0.03-0.30 ml/g (BJH method to DIN 66134); macropores 1.5-5.0 ml/g (DIN 66133); and bulk density 50-2000 g/l (DIN-ISO 787/XI). An Independent claim is also included for the preparation of (I) by mixing a solution of an indium salt with a solution of a tin salt, adding a solution of a salt of doping component(s) if necessary, atomizing the mixed solution, pyrolyzing and separating the product from the waste gases.
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Patent Agency Ranking
公开(公告)号：ES2435249T3
公开(公告)日：2013-12-17
申请号：ES10167350
申请日：2010-06-25
Applicant: EVONIK DEGUSSA GMBH
Inventor： KATUSIC STIPAN , KRES PETER
Abstract: Procedimiento para la preparación de un polvo de óxido mixto con contenido en litio, en el que a) una corriente de una disolución que contiene en cada caso al menos un compuesto de litio y al menos un compuesto de metal de uno o varios componentes de óxidos mixtos en la relación estequiométrica necesaria, se pulveriza mediante un gas de pulverización para formar un aerosol el cual presenta un tamaño medio de gotas menor que 100 μm, b) el aerosol se hace reaccionar en un espacio de reacción con una llama que se obtiene a partir de una mezcla de gas combustible y aire, siendo suficiente la cantidad total de oxígeno al menos para la reacción completa del gas combustible y de los compuestos de metales, c) se enfría la corriente de reacción, y d) a continuación, el producto sólido se separa de la corriente de reacción.
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公开(公告)号：DE102009029640A1
公开(公告)日：2011-04-07
申请号：DE102009029640
申请日：2009-09-21
Applicant: EVONIK DEGUSSA GMBH
Inventor： KATUSIC STIPAN , MEYER JUERGEN , KRES PETER , WIEGAND ARMIN
IPC: C01G1/02
Abstract: Verfahren zur Herstellung oberflächenmodifizierter Metalloxidpartikel, bei dem man a) in einem ersten Reaktionsschritt in einen Metalloxidpartikel enthaltenden Gasstrom ein Oberflächenmodifizierungsmittel einbringt und das resultierende Reaktionsgemisch bei einer minimalen Verweilzeit im Bereich von 1 bis 60 s einer Temperatur von 130 bis 250°C aussetzt und b) in einem unmittelbar nachfolgenden zweiten Reaktionsschritt die festen Reaktionsprodukte mittels einer Filtervorrichtung aus dem strömenden Reaktionsgemisch abtrennt und das auf dem Filter vorliegende Reaktionsgemisch bei einer minimalen Verweilzeit im Bereich von 1 min bis 1 Stunde bei einer Temperatur von 110 bis 230°C behandelt.
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公开(公告)号：DE102006038518A1
公开(公告)日：2008-02-21
申请号：DE102006038518
申请日：2006-08-17
Applicant: EVONIK DEGUSSA GMBH
Inventor： KATUSIC STIPAN , HILL SVEN , KROELL MICHAEL , ZIMMERMANN GUIDO , KRES PETER
Abstract: Zinc silicon oxide particles with a core-shell structure which have a Zn/Si ratio of from 2 to 75, in atom %/atom %, whose fraction of Zn, Si and O is at least 99% by weight, based on the zinc silicon oxide particles, which have a BET surface area of from 10 to 60 m2/g, a weight-averaged primary particle diameter of from 10 to 75 nm an average aggregate area of less than 40 000 nm2 and an average aggregate diameter (ECD) of less than 200 nm, whose core is crystalline and consists of aggregated primary particles of zinc oxide and whose shell surrounds the aggregated zinc oxide primary particles and consists of one or more compounds containing the elements Si and O. Dispersion, coating composition and sunscreen formulation comprise the zinc silicon oxide particles.
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公开(公告)号：DE10235758A1
公开(公告)日：2004-02-26
申请号：DE10235758
申请日：2002-08-05
Applicant: DEGUSSA
Inventor： KATUSIC STIPAN , MICHAEL GUENTHER , KRES PETER , ZIMMERMANN GUIDO , GUTSCH ANDREAS , VARGA GEOFFREY
IPC: C01G9/02 , A61K8/27 , A61Q17/04 , C01G9/00 , C01G9/03 , C09C1/04 , H01B1/08 , H01B13/00 , C08K3/22
Abstract: Doped zinc oxide powder comprises doping component (0.005-15 wt.%). The doping component comprises oxides of aluminum, gallium, indium, germanium, tin, and/or silicon. The zinc oxide powder is in the form of aggregates having a mean maximum diameter of 30-300 nm. An Independent claim is also included for preparation of zinc oxide powder by treating zinc powder and doping agent(s) in vaporization, nucleation, oxidation, and quenching zones. In the vaporization zone, zinc powder is vaporized in a flame of air and/or oxygen and combustion gas under reaction conditions that oxidation of zinc does not occur. The hot reaction mixture from the vaporization zone containing zinc vapor, water vapor (reaction product of flame reaction), and optionally excess combustion gas passes through the nucleation zone and is cooled to 500-900degreesC or is cooled using inert gas, and an aerosol containing doping agent(s) is fed in an amount that corresponds to the desired amount of doping agent in the zinc oxide powder. In the oxidation zone, the mixture from the nucleation zone is oxidized with air and/or oxygen. In the quenching zone, the oxidation mixture is cooled to less than 400degreesC by addition of cooling gas.
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公开(公告)号：DE102012204148A1
公开(公告)日：2013-02-21
申请号：DE102012204148
申请日：2012-03-16
Applicant: EVONIK DEGUSSA GMBH
Inventor： KATUSIC STIPAN PROF , KRES PETER , FISCHER ULRICH DR , WIEGAND ARMIN
IPC: C04B7/38
Abstract: Die Erfindung betrifft ein Calciumoxid, Siliciumdioxid und weitere Calciumverbindungen enthaltendes Pulver sowie dessen Herstellung. Darüber hinaus zählt ein hydraulisches Bindemittel auf Basis des Calciumoxidhaltigen Pulvers sowie dessen Verwendung in Zement, Beton oder Mörtel zur Erfindung.
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