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公开(公告)号：DE19824947A1
公开(公告)日：1999-12-09
申请号：DE19824947
申请日：1998-06-04
Applicant: DEGUSSA
Inventor： STUEBBE ANDREAS , KLEINHENZ HORST , LEIMANN JUERGEN , KARL ALFONS
Abstract: Aqueous carbon black dispersion contains, besides water, 1-40 wt.% C black and 1-30 wt.% surfactant. An Independent claim is also included for the production of the suspension.
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公开(公告)号：ZA993607B
公开(公告)日：1999-11-26
申请号：ZA993607
申请日：1999-05-27
Applicant: DEGUSSA
Inventor： KARL ALFONS
Abstract: An oxidatively aftertreated carbon black has a content of volatile constituents of more than 10 wt. %, based on its total weight, and the ratio of its CTAB surface area to the iodine adsorption number is greater than 2 m2/mg. The carbon black may be a channel black oxidatively aftertreated with ozone. The carbon black according to the invention is used preferably as pigment carbon black for the production of water-based paints, printing inks and as inks for mechanical and manual recording and drawing instruments. The combination of properties imparts to the carbon black an excellent dispersibility in water-based binder systems. The paints, printing inks and printer inks produced from this carbon black have an outstanding stability in storage.
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公开(公告)号：ZA8503489B
公开(公告)日：1985-12-24
申请号：ZA8503489
申请日：1985-05-08
Applicant: DEGUSSA
Inventor： KARL ALFONS , WALTER ERWIN , KLEINSCHMIT PETER , GOTTSCHLICH HERMANN , KUTZ ROLAND , KOTH DETLEV
CPC classification number: C01B32/336
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公开(公告)号：ES2428883T3
公开(公告)日：2013-11-12
申请号：ES08759845
申请日：2008-05-21
Applicant: EVONIK DEGUSSA GMBH , ORION ENGINEERED CARBONS GMBH
Inventor： STENGER FRANK , KARL ALFONS , MATHIAS JOHANN , RIEDEMANN THOMAS , SCHARFFENBERG-KAHLKE RUDOLF , ALDENHOEVEL KARSTEN
Abstract: Procedimiento para la determinación del comportamiento de transporte durante el transporte neumático degranulados, en donde (A) se alimenta la muestra de granulado en una ranura de transporte, (B) después de la ranura de transporte se introduce la muestra de granulado por medio de un inyector en unacorriente regulada de aire, (C) la muestra de granulado fluye a través de un tramo de transporte y (D) la muestra de granulado se mide en un espectrómetro de difracción de láser, caracterizado porque en la etapa (B) se introduce la muestra de granulado a través de un inyector Venturi
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75.发明专利
公开(公告)号：NZ591238A
公开(公告)日：2013-03-28
申请号：NZ59123809
申请日：2009-09-28
Applicant: EVONIK DEGUSSA GMBH
Inventor： LANG JURGEN ERWIN , RAULEDER HARTWIG , MUH EKKEHARD , KARL ALFONS
IPC: C01B31/36 , C01B33/021 , C04B35/565
Abstract: Disclosed herein is a high-purity composition comprising silicon carbide and carbon and silicon dioxide, having an impurity profile in respect of boron and phosphorus, wherein the boron content is in the range from 10 ppm to 0.001 ppt and the phosphorus content is in the range from 20 ppm to 0.001 ppt. Also disclosed is the use of said high-purity composition in the production of silicon or in the preparation of silicon carbide from pyrolysis of carbon and silicon dioxide at elevated temperatures.
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Patent Agency Ranking
公开(公告)号：CA2739041A1
公开(公告)日：2010-04-08
申请号：CA2739041
申请日：2009-09-28
Applicant: EVONIK DEGUSSA GMBH
Inventor： RAULEDER HARTWIG , MUEH EKKEHARD , SIRAY MUSTAFA , NAGLER PETER , FRINGS BODO , LUNT-RIEG INGRID , KARL ALFONS , PANZ CHRISTIAN , GROTH THOMAS , STOCHNIOL GUIDO , ROCHNIA MATTHIAS , LANG JUERGEN ERWIN , WOLF OLIVER , SCHMITZ RUDOLF , NOWITZKI BERND , WEWERS DIETMAR
IPC: C01B33/025 , C01B31/02 , C01B31/36
Abstract: The invention relates to a complete method for producing pure silicon that is suitable for use as solar-grade silicon, comprising the reduction of a silicon oxide, purified by acidic precipitation from an aqueous solution of a silicon oxide dissolved in an aqueous phase, using one or more pure carbon sources, the purified silicon oxide being obtained, in particular, by the precipitation of a silicon oxide dissolved in an aqueous phase in an acidifier. The invention also relates to a formulation containing an activator and to a device for producing silicon, a reactor and electrodes.
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公开(公告)号：AU2009299921A1
公开(公告)日：2010-04-08
申请号：AU2009299921
申请日：2009-09-28
Applicant: EVONIK DEGUSSA GMBH
Inventor： RAULEDER HARTWIG , MUH EKKEHARD , SIRAY MUSTAFA , NAGLER PETER , FRINGS BODO , LUNT-RIEG INGRID , KARL ALFONS , PANZ CHRISTIAN , GROTH THOMAS , STOCHNIOL GUIDO , ROCHNIA MATTHIAS , LANG JURGEN ERWIN , WOLF OLIVER , SCHMITZ RUDOLF , NOWITZKI BERND , WEWERS DIETMAR
IPC: C01B31/02 , C01B33/025
Abstract: The invention relates to a complete method for producing pure silicon that is suitable for use as solar-grade silicon, comprising the reduction of a purified silicon oxide using one or more pure carbon sources, the purified silicon oxide, which was purified as silicon oxide dissolved in an aqueous phase, having a content of other polyvalent metals or metal oxides, in relation to the silicon oxide, of less than or equal to 300 ppm, preferably less than 100 ppm, especially preferably less than 50 ppm and according to the invention less than 10 ppm of the other metals and being obtained advantageously by gel formation in alkaline conditions. The invention also relates to a formulation containing an activator and to the use of purified silicon oxide together with an activator for producing silicon.
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公开(公告)号：AU2009299911A1
公开(公告)日：2010-04-08
申请号：AU2009299911
申请日：2009-09-28
Applicant: EVONIK DEGUSSA GMBH
Inventor： LANG JURGEN ERWIN , KARL ALFONS , RAULEDER HARTWIG , MUH EKKEHARD , STOCHNIOL GUIDO
IPC: C01B31/02 , C01B32/40 , C01B33/025 , C01B33/18
Abstract: The present invention relates to methods for the technical pyrolysis of a carbohydrate or carbohydrate mixture at an elevated temperature while adding silicon oxide, to a pyrolysis product obtainable in this way, and to the use thereof as a reducing agent for the production of solar silicon from silicic acid and carbon at a high temperature.
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公开(公告)号：DE102008064642A1
公开(公告)日：2010-04-01
申请号：DE102008064642
申请日：2008-09-30
Applicant: EVONIK DEGUSSA GMBH
Inventor： LANG JUERGEN ERWIN , RAULEDER HARTWIG , MUEH EKKEHARD , KARL ALFONS
IPC: C01B31/36
Abstract: The invention relates to a method for producing silicon carbide through reaction of silicon oxide and a carbon source comprising a hydrocarbon at high temperature, in particular to a technical method for producing silicon carbide or for producing compositions containing silicon carbide. The invention further relates to a high-purity silicon carbide, to compositions containing the same, to the use thereof as a catalyst and for the production of electrodes and other items.
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公开(公告)号：AR066771A1
公开(公告)日：2009-09-09
申请号：ARP080102272
申请日：2008-05-30
Applicant: EVONIK DEGUSSA GMBH
Inventor： RIEDEMANN THOMAS , SCHARFFENBERG RUDOLF , KARL ALFONS , MATHIAS JOHANN , STENGER FRANK , ALDENOHOVEL KARSTEN
IPC: B65G53/04
Abstract: El invento se refiere a un procedimiento para determinar el comportamiento en transporte de materiales granulares durante el transporte neumático, donde (A) la probeta de material granular es colocada en un canal transportador, (B) después del canal transportador la probeta de granulado es introducida a través de un inyector en una corriente regulada de aire, (C) la probeta de granulado fluye a través de un tramo de transporte, y (D) la probeta de granulado es medida en un espectrometro de difraccion láser, donde en el paso (B) la probeta de granulado se introduce a través de un inyector Venturi. El dispositivo para la realizacion del procedimiento comprende: - un canal de transporte para la introduccion de granulados en el tramo de transporte, - un canal de transporte para la introduccion de granulados no expuestos a solicitacion en el espectrometro de difraccion láser, - una válvula de regulacion de la corriente de aire, - un inyector Venturi, - un tramo de transporte, y un espectrometro de difraccion láser.
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