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    33.
    发明专利
    未知

    公开(公告)号：DE102008035623A1

    公开(公告)日：2010-02-04

    申请号：DE102008035623

    申请日：2008-07-31

    Applicant: EVONIK DEGUSSA GMBH

    Inventor： KORTH KARSTEN ,  KIEFER INGO ,  ALIG ALFRED ,  DESCHLER ULRICH ,  DROEGE HELMUT ,  KOENIGSTEIN STEFAN ,  SCHWAN STEPHANIE

    IPC: C07F7/02 ,  C07F7/18

    Abstract: Preparation of organosilanes (I), comprises reacting (halogenoorganyl)alkoxysilane (II) with aqueous alkaline hydrogen sulfide, sulfur and alkali-carbonate in alcohol, where the molar ratio of (halogenoorganyl)alkoxysilane to alkaline hydrogen sulfide is 1:0.4 to 1:0.75 and the molar ratio of alkali-carbonate to alkaline hydrogen sulfide is 1:0.5 to 1:1.5. Preparation of organosilanes of formula ([((R) 2)(R 1>-O)Si-R 2>)] 2-S m) (I), comprises reacting (halogenoorganyl)alkoxysilane of formula ([((R) 2)(R 1>-O)Si-R 2>)]-X) (II) with aqueous alkaline hydrogen sulfide, sulfur and alkali-carbonate in alcohol, where the molar ratio of (halogenoorganyl)alkoxysilane to alkaline hydrogen sulfide is 1:0.4 to 1:0.75 and the molar ratio of alkali-carbonate to alkaline hydrogen sulfide is 1:0.5 to 1:1.5. R : 1-8C alkyl, 1-8C alkenyl, 1-8C aryl, 1-8C aralkyl or OR 1>; R 1>H, 1-24C monovalent alkyl or alkenyl, aryl, aralkyl, alkyl ether (-(C(R 3>) 2) y 1>-O-R 4>) or alkyl polyether (-C(R 3>) 2O) y 2>-R 4> or -(C(R 3>) 2-C(R 3>) 2-O) y 2>-R 4>); y 1>1-20; y 2>2-20; R 3>H or alkyl; R 4>optionally saturated, aromatic or mixed aliphatic/aromatic monovalent 1-30C hydrocarbon; R 2>optionally saturated aliphatic, aromatic or mixed aliphatic/aromatic divalent 1-30C hydrocarbon, which is optionally substituted with F, Cl, Br, I, SH, NH 2 or NHR 1>; m : average sulfur chain length of 1.5-4.5; and X : Cl, Br, F or I.

    34.
    发明专利
    未知

    公开(公告)号：DE502006002874D1

    公开(公告)日：2009-04-02

    申请号：DE502006002874

    申请日：2006-07-14

    Applicant: EVONIK DEGUSSA GMBH

    Inventor： FRINGS ALBERT ,  JANSSENS LOUIS ,  LOTTER STEFAN ,  DESCHLER ULRICH ,  ALIG ALFRED

    IPC: C07F7/18

    Abstract: Preparation of organosilicon compound (I) comprises reacting halogenalkoxysilane (II) with a dry polysulfide (III) dry sulfide (IV) and optionally a sulfur in an organic solvent; removing the mixture containing (I) and the solid material with water containing at least a buffer from the organic solvent and separating the binding phase. Preparation of organosilicon compound (I) of formula ((R 1>R 2>R 3>SiR 4>) 2S x) comprises reacting halogenalkoxysilane compound (II) of formula (R 1>R 2>R 3>SiR 4>X) with a dry polysulfide compound (III) of formula (M 2S z) dry sulfide (IV) of formula (M 2S) and optionally a sulfur in an organic solvent; removing the mixture containing (I) and the solid material (MX) with water containing at least a buffer from the organic solvent and separating the binding phase. R 1>-R 3>alkyl, alkoxy (preferred) or aryl; R 4>1-30C-aliphatic/aromatic hydrocarbon; x : greater than 1; X : halogen atom; M : alkali cation, an ammonium or semi alkaline earth or zinc cation; and z : 2-8.

    35.
    发明专利
    未知

    公开(公告)号：AT370152T

    公开(公告)日：2007-09-15

    申请号：AT06110837

    申请日：2006-03-08

    Applicant: DEGUSSA

    Inventor： KORTH KARSTEN ,  WOLF DORIT ,  SEEBALD STEFFEN ,  ALBERT PHILIPP ,  PIETER REIMUND ,  ALIG ALFRED

    IPC: C07F7/18

    Abstract: Preparation of mercapto organyl(alkoxysilane) (I) comprises reaction of a bis(alkoxysilylorganyl)polysulfide with hydrogen in the presence of at least an alcohol and a doped metal catalyst (containing at least one substance ((iron) compound, (nickel) compound, (palladium) compound, (osmium) compound, (ruthenium) compound, (rhodium) compound or (iridium) compound) and at least one doping component).

    PROCESS FOR THE PREPARATION OF ORGANOSILICON COMPOUNDS
    36.
    发明专利
    PROCESS FOR THE PREPARATION OF ORGANOSILICON COMPOUNDS 未知

    公开(公告)号：CA2555954A1

    公开(公告)日：2007-02-10

    申请号：CA2555954

    申请日：2006-08-08

    Applicant: DEGUSSA

    Inventor： JANSSENS LOUIS ,  DESCHLER ULRICH ,  ALIG ALFRED ,  LOTTER STEFAN ,  FRINGS ALBERT

    IPC: C07F7/18

    Abstract: The invention relates to a process for the preparation of an organosilicon compound of the general formula (I) (R1R2R3SiR4)2S x (I) by reacting haloalkoxysilanes of the general formula (II) R1R2R3SiR4X (II) with a dry polysulphide of the general formula (III) M2S z (III) and/or dry sulphide of the general formula IV M2S (IV) and optionally sulphur in an organic solvent, the organic solvent being removed from the resulting suspension, the mixture containing the organosilicon compound of the general formula (I) and the solid MX being mixed with water containing at least one buffer, and the resulting phases being separated.

    37.
    发明专利
    未知

    公开(公告)号：DE102005020536A1

    公开(公告)日：2006-03-23

    申请号：DE102005020536

    申请日：2005-05-03

    Applicant: DEGUSSA

    Inventor： KORTH KARSTEN ,  ALBERT PHILIPP ,  WOLF DORIT ,  SEEBALD STEFFEN ,  PIETER REIMUND ,  ALIG ALFRED

    IPC: C07F7/18

    Abstract: Mercaptoorganyl(alkoxysilanes) are produced by hydrogenating bis(alkoxysilylorganyl) polysulfides at less than 190[deg]C and less than 100 bar with hydrogen and a transition metal catalyst without the addition of water, alcohol, dihydrogen sulfide.

    38.
    发明专利
    未知

    公开(公告)号：BR0305399A

    公开(公告)日：2004-08-31

    申请号：BR0305399

    申请日：2003-12-03

    Applicant: DEGUSSA

    Inventor： ALT HANS CHRISTIAN ,  GOELZ ANDREAS ,  ALIG ALFRED

    IPC: C01B17/20 ,  B01J2/16 ,  C01B17/38 ,  C01B17/40

    Abstract: Production of anhydrous alkali metal sulfides comprises drying a water-containing alkali metal sulfide by fluidized-bed spray granulation. An Independent claim is also included for apparatus for carrying out the above process, comprising a granulator chamber with a diameter:height ratio of 1:1-5, equipped with a blower plate; an atomizer for melts, suspensions, dispersions or solutions; an inlet for fluidizing and drying medium; an upper outlet for fines; a solids separator connected to the outlet and equipped with a waste gas discharge pipe optionally including a filter; a fines recycle line feeding the lower part of the chamber; a classifier in the lower part of the chamber; a unit for solvent recovery from the waste gas; and a unit for recycling and conditioning waste gas for re-use as fluidizing gas.

    METHOD FOR MANUFACTURE OF ANHYDROUS ALKALI METAL SULPHIDE AND SYSTEM TO IMPLEMENT THIS METHOD
    40.
    发明专利
    METHOD FOR MANUFACTURE OF ANHYDROUS ALKALI METAL SULPHIDE AND SYSTEM TO IMPLEMENT THIS METHOD 未知

    公开(公告)号：PL363847A1

    公开(公告)日：2004-06-14

    申请号：PL36384703

    申请日：2003-12-03

    Applicant: DEGUSSA

    Inventor： ALT HANS CHRISTIAN ,  GOLZ ANDREAS ,  ALIG ALFRED

    IPC: C01B17/20 ,  B01J2/16 ,  C01B17/38 ,  C01B17/40

    Abstract: Production of anhydrous alkali metal sulfides comprises drying a water-containing alkali metal sulfide by fluidized-bed spray granulation. An Independent claim is also included for apparatus for carrying out the above process, comprising a granulator chamber with a diameter:height ratio of 1:1-5, equipped with a blower plate; an atomizer for melts, suspensions, dispersions or solutions; an inlet for fluidizing and drying medium; an upper outlet for fines; a solids separator connected to the outlet and equipped with a waste gas discharge pipe optionally including a filter; a fines recycle line feeding the lower part of the chamber; a classifier in the lower part of the chamber; a unit for solvent recovery from the waste gas; and a unit for recycling and conditioning waste gas for re-use as fluidizing gas.

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