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    PRECIPITATED SILIC ACIDS, METHOD OF OBTAINING THEM AND VULCANISABLE RUBBER COMPOUNDS
    11.
    发明专利
    PRECIPITATED SILIC ACIDS, METHOD OF OBTAINING THEM AND VULCANISABLE RUBBER COMPOUNDS 未知

    公开(公告)号：PL314565A1

    公开(公告)日：1996-12-09

    申请号：PL31456596

    申请日：1996-05-31

    Applicant: DEGUSSA

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

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

    Abstract: - Pptd. SiO2 (I) has a CTAB surface area (to ASTM D 3765-92) of 200-400 m /g, a DBP no. (to ASTM D 2414) between 230 and 380 ml/100 g as powder and 180-250 g/100 g as granulate; a silanol gp. density (V2 consumption of NaOH) of 20-30 ml; and a typical macropore size distribution for each surface area, determined by HG porosimetry (DIN 66133) for certain pore size intervals (incremental plot). For CTAB surface areas of (A) 200-250, (B) 250-3300, (C) 300-400 m /g, the Hg consumption is (A) 0.27-0.49, (B) 0.35-0.50, (C) 0.32-0.42 ml/g for 10-20 nm pores; (A) 0.22-0.32, (B) 0.15-0.30, (C) 0.17-0.22 ml/g for 20-30 nm pores; (A) 0.15-0.21, (B) 0.12-0.17, (C) 0.12-0.15 ml/g for 30-40 nm pores; (A) 0.11-0.16, (B) 0.09-0.12, (C) 0.08-0.11 ml/g for 40-50 nm pores; and (A) 0.08-0.12, (B) 0.06-0.10, (C) 0.06-0.09 ml/g for 50-60 nm pores. Also claimed are vulcanisable rubber blends contg. 5-100, esp. 15-60 phr (I); and rubber blends and/or vulcanisates contg. opt. silane-modified (I).

    PRODUCTION OF SOLAR-GRADE SILICON FROM SILICON DIOXIDE
    12.
    发明专利
    PRODUCTION OF SOLAR-GRADE SILICON FROM SILICON DIOXIDE 未知

    公开(公告)号：NZ591284A

    公开(公告)日：2013-02-22

    申请号：NZ59128409

    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: Disclosed herein is a process for preparing pure silicon, comprising the reduction of purified silicon oxide with one or more pure carbon sources, wherein the pure carbon sources are selected from the group consisting of carbohydrate, graphite, coke, coal, carbon black and thermal black, the purified silicon oxide has a content of other polyvalent metals of less than or equal to 300 ppm, based on the silicon oxide, and wherein the purification of the silicon oxide comprises the following steps a to d): providing silicates dissolved in an aqueous phase; contacting with a strongly acidic cation exchange resin of the hydrogen type, in an amount which is sufficient for the ion exchange of essentially all other metal ions in the aqueous phase, the temperature of the aqueous phase being in the range from 0 DEGREE C to 60 DEGREE C, obtaining the aqueous phase of an active silica with an SiO2 concentration of from 2 to 6% by weight and a pH of from 0 to 4, obtaining purified silicon oxide, and wherein further silicon carbide is added in a formulation comprising the purified silicon oxide and at least one pure carbon source silicon or the purified silicon oxide or at least one pure carbon source and 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,

    15.
    发明专利
    未知

    公开(公告)号：BR9602592A

    公开(公告)日：1998-10-06

    申请号：BR9602592

    申请日：1996-06-03

    Applicant: DEGUSSA

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

    IPC: C01B33/187 ,  C01B33/193 ,  C08K3/00 ,  C08K3/36 ,  C08K9/00 ,  C08K9/06 ,  C08L21/00 ,  C09C1/30 ,  C08K5/54 ,  C08L7/00 ,  C08L9/00 ,  C08L13/00 ,  C08F7/02

    Abstract: - Pptd. SiO2 (I) has a CTAB surface area (to ASTM D 3765-92) of 200-400 m /g, a DBP no. (to ASTM D 2414) between 230 and 380 ml/100 g as powder and 180-250 g/100 g as granulate; a silanol gp. density (V2 consumption of NaOH) of 20-30 ml; and a typical macropore size distribution for each surface area, determined by HG porosimetry (DIN 66133) for certain pore size intervals (incremental plot). For CTAB surface areas of (A) 200-250, (B) 250-3300, (C) 300-400 m /g, the Hg consumption is (A) 0.27-0.49, (B) 0.35-0.50, (C) 0.32-0.42 ml/g for 10-20 nm pores; (A) 0.22-0.32, (B) 0.15-0.30, (C) 0.17-0.22 ml/g for 20-30 nm pores; (A) 0.15-0.21, (B) 0.12-0.17, (C) 0.12-0.15 ml/g for 30-40 nm pores; (A) 0.11-0.16, (B) 0.09-0.12, (C) 0.08-0.11 ml/g for 40-50 nm pores; and (A) 0.08-0.12, (B) 0.06-0.10, (C) 0.06-0.09 ml/g for 50-60 nm pores. Also claimed are vulcanisable rubber blends contg. 5-100, esp. 15-60 phr (I); and rubber blends and/or vulcanisates contg. opt. silane-modified (I).

    ACIDO SILICICO DE PRECIPITACION.
    17.
    发明专利
    ACIDO SILICICO DE PRECIPITACION. 未知

    公开(公告)号：MX9602784A

    公开(公告)日：1997-06-28

    申请号：MX9602784

    申请日：1996-07-15

    Applicant: DEGUSSA

    Inventor： TURK GUNTER ,  SCHMIDT GEROLD ,  SIRAY MUSTAFA ,  MEIER KARL

    IPC: C01B33/193 ,  H01M2/16 ,  C01B33/12

    Abstract: La presente invencion se refiere al ácido silicico de precipitacion que tiene los siguientes datos característicos físico-químicos: Superficie BET: DIN 66131 100 130 M2/G; Absorcion DBP DIN 53601 > o igual que 275 g/100g; (anhidro): ASTM D 2414; Pérdida debida al DIN ISO 787/II; secado ASTM D 280 3,5 - 5,5% en peso; (2 h/105 degree C): JIS K 5101/21; Residuos de criba con criba para chorro de aire ALPINE. > 63 æm 150 æm 250 æm

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