公开(公告)号：DE102008043606A1

公开(公告)日：2010-05-12

申请号：DE102008043606

申请日：2008-11-10

Applicant: EVONIK DEGUSSA GMBH

Inventor： LANG JUERGEN ERWIN ,  RAULEDER HARTWIG ,  FRINGS BODO ,  SIRAY MUSTAFA ,  SCHMITZ RUDOLF ,  WEWERS DIETMAR ,  NAGLER PETER ,  WENDT RAINER ,  MARKOWZ GEORG

IPC: C09C1/48 ,  C01B31/04 ,  C01B33/021 ,  C01B33/158

Abstract: The object of the invention is a more energy-efficient system for utilizing waste heat and residual gases from the engineered generation of carbon compounds, such as carbon black, graphite or from sugar pyrolysis, using a coupling of energy-heat or a thermal heat-generating plant for generating electrical energy, in particular for operating melt furnaces, and/or for utilizing the waste heat in endothermal processes. The invention also relates to the use of waste heat.

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.

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.

公开(公告)号：DE19860441A1

公开(公告)日：2000-07-06

申请号：DE19860441

申请日：1998-12-28

Applicant: DEGUSSA

Inventor： BARTHEL THOMAS ,  KLOSE MICHAEL ,  SIRAY MUSTAFA ,  NAGEL WERNER ,  OELMUELLER ROLF

IPC: A23K20/174 ,  A23K40/10 ,  A23K1/16

公开(公告)号：PL328556A1

公开(公告)日：1999-03-29

申请号：PL32855698

申请日：1998-09-14

Applicant: DEGUSSA

Inventor： UHRLANDT STEFAN ,  SIRAY MUSTAFA ,  BLUME ANKE ,  FREUND BURKHARD

IPC: C01B33/193 ,  C08K3/36 ,  C01B33/187 ,  C01B33/00

Abstract: New precipitated silica has a BET surface of 120-300 m /g, a CTAB surface of 100-300 m /g, a BET/CTAB ratio of 0.8-1.3, a Sears number (0.1N-sodium hydroxide required) of 6-25 ml, a DBP number of 150-300 g/100 g, a WK coefficient of less than 3.4 and particle sizes of less than 1.0 and 1.0-100 microns for degraded and undegradable particles respectively. Independent claims are also included for (a) a process for the production of this precipitated silica by reacting alkali silicate (preferably sodium waterglass) with mineral acid (preferably sulphuric acid) at 60-95 degrees C and pH 7.0-11.0 with continuous stirring, continuing reaction to a solid content of 40-100 g/l, adjusting to pH 3-5, filtering off the silica, washing, drying and possibly milling or granulating, (b) vulcanisable rubber mixtures and vulcanised rubber containing this silica as a filler.

公开(公告)号：TR9600452A2

公开(公告)日：1996-12-21

申请号：TR9600452

申请日：1996-05-31

Applicant: DEGUSSA

Inventor： GORL DR UDO ,  HUNSCHE ANDREA ,  KUHLMANN ROBERT ,  SIRAY MUSTAFA ,  ESCH HEINZ

IPC: C01B33/187 ,  C01B33/193 ,  C08K3/00 ,  C08K3/36 ,  C08K9/00 ,  C08K9/06 ,  C08L21/00 ,  C09C1/30

CPC classification number: C09C1/3081 ,  C01B33/193 ,  C01P2004/50 ,  C01P2004/51 ,  C01P2004/61 ,  C01P2006/12 ,  C01P2006/14 ,  C01P2006/16 ,  C01P2006/17 ,  C01P2006/19 ,  C01P2006/21 ,  C01P2006/82 ,  C01P2006/90 ,  C08K3/36 ,  C08K9/06 ,  C08K2201/002 ,  C08K2201/006 ,  C09C1/30 ,  C08L21/00

公开(公告)号：DD290816A5

公开(公告)日：1991-06-13

申请号：DD33555889

申请日：1989-12-12

Applicant: DEGUSSA

Inventor： BAACKE MICHAEL ,  BRAND REINHOLD ,  ENGLER BERND ,  KISS AKOS ,  KLEINE-MOELLHOFF PETER ,  KLEINSCHMITT PETER ,  KOBERSTEIN EDGAR ,  SIRAY MUSTAFA

IPC: B01D53/86 ,  B01D53/56 ,  B01D53/94 ,  B01J29/18 ,  B01J29/20 ,  B01J29/24 ,  B01J29/26 ,  B01D53/34 ,  B01J29/04

Abstract: A zeolite catalyst and a method for reduction of nitrogen oxides present in waste gas streams is described. The method includes mixing the waste gas containing nitrogen oxides with ammonia. At an elevated temperature, this mixture is passed over a zeolite catalyst. Preferably, the zeolite catalyst is in a monolithic or honeycomb form. The zeolite catalyst includes one or more of the following subgroup metals: copper, iron, molybdeum and cerium. The zeolite catalysts made in accordance with this invention show better conversion of nitrogen oxides and longer life than known catalysts.

公开(公告)号：DK628589D0

公开(公告)日：1989-12-13

申请号：DK628589

申请日：1989-12-13

Applicant: DEGUSSA

Inventor： BAACKE MICHAEL ,  BRAND REINHOLD ,  ENGLER BERND ,  KISS AKOS ,  KLEINE-MOELLHOFF PETER ,  KLEINSCHMIT PETER ,  KOBERSTEIN EDGAR ,  SIRAY MUSTAFA

IPC: B01D53/86 ,  B01D53/56 ,  B01D53/94 ,  B01J29/18 ,  B01J29/20 ,  B01J29/24 ,  B01J29/26 ,  B01D53/36 ,  B01J29/14

Abstract: A zeolite catalyst and a method for reduction of nitrogen oxides present in waste gas streams is described. The method includes mixing the waste gas containing nitrogen oxides with ammonia. At an elevated temperature, this mixture is passed over a zeolite catalyst. Preferably, the zeolite catalyst is in a monolithic or honeycomb form. The zeolite catalyst includes one or more of the following subgroup metals: copper, iron, molybdeum and cerium. The zeolite catalysts made in accordance with this invention show better conversion of nitrogen oxides and longer life than known catalysts.

公开(公告)号：ES2705173T3

公开(公告)日：2019-03-22

申请号：ES12705091

申请日：2012-02-10

Applicant: EVONIK DEGUSSA GMBH

Inventor： PANZ CHRISTIAN ,  PAULAT FLORIAN ,  TITZ GUIDO ,  MÜLLER SVEN ,  ERLHÖFER PETER ,  RUF MARKUS ,  FRINGS BODO ,  RAULEDER HARTWIG ,  BARTHEL THOMAS ,  SIRAY MUSTAFA ,  BEHNISCH JÜRGEN

IPC: C01B33/193 ,  B01J39/04 ,  B01J39/16 ,  B01J39/18 ,  B01J49/53 ,  C01B33/12

Abstract: Procedimiento para la producción de dióxido de silicio altamente puro, que comprende los siguientes pasos de proceso citados a continuación a) producción de un depósito constituido por un agente de acidificación o un agente de acidificación y agua con un valor de pH menor que 2, b) puesta a disposición de una disolución de silicato con una viscosidad de 0,1 a 10000 Poise, c) adición de la disolución de silicato del paso b) en el depósito del paso a), de modo que el valor de pH de la suspensión de precipitación obtenida permanece en un valor menor que 2, d) separación y lavado del dióxido de silicio obtenido, presentando el medio de lavado un valor de pH menor que 2, e) lavado en medio neutro de dióxido de silicio con agua completamente desalinizada (agua VE), f) secado del dióxido de silicio obtenido, con la condición de que al menos un intercambiador de iones fosfonato se ponga en contacto con la fase líquida de la suspensión de precipitación en el ámbito del paso de proceso c), o con el medio de lavado en el ámbito del paso de proceso d), o con ambos, para el intercambio iónico.

公开(公告)号：NZ591317A

公开(公告)日：2013-02-22

申请号：NZ59131709

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: C01B33/025 ,  C01B31/02 ,  C01B31/36

Abstract: Disclosed herein is a method for the production of pure silicon comprising the reduction of purified silicon dioxide with a pure carbon source, wherein pure silicon means a material displaying ? 5 ppm of aluminium, ? 10 ppm to 0.0001 ppt of boron, ? 2 ppm of calcium, ? 20 ppm of iron, ? 10 ppm of nickel, ?10 ppm to 0.0001 ppt phosphorus, ? 2 ppm of titanium and ? 3 ppm of zinc, purified silicon dioxide means a material displaying ? 5 ppm of aluminium,