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    11.
    发明专利
    未知

    公开(公告)号：DE502006000056D1

    公开(公告)日：2007-09-27

    申请号：DE502006000056

    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).

    13.
    发明专利
    未知

    公开(公告)号：DE50110667D1

    公开(公告)日：2006-09-21

    申请号：DE50110667

    申请日：2001-06-21

    Applicant: DEGUSSA

    Inventor： ALIG ALFRED ,  BATZ SOHN CHRISTOPH DR ,  DESCHLER ULRICH DR ,  MICHEL RUDOLF ,  MUENZENBERG JOERG DR ,  SONNENSCHEIN RAYMUND DR ,  WILLI WERNER ,  ZEZULKA GERD RAINHARD ,  RUETZEL KARL-HEINZ

    IPC: C07F7/08 ,  C07F7/18

    Abstract: The invention relates to a process for the preparation of organosilylalkylpolysulfanes, of the general formula I (R1R2R3SiR4)2Sx (I) by reaction of organosilylalkylpolysulfanes of the general formula II (R1R2R3SiR4)2Sy (II) with an ionic sulfide of the general formula M+2S2- (III) and an organosilylalkyl halide of the general formula R1R2R3SiR4X (IV), the long-chain organosilylalkylpolysulfane of the general formula (II) and the organosilylalkyl halide of the general formula (IV) being initially introduced into the reaction vessel and the ionic sulfide of the general formula (III) being added to this solution in several portions.

    15.
    发明专利
    未知

    公开(公告)号：DE50300411D1

    公开(公告)日：2005-05-04

    申请号：DE50300411

    申请日：2003-09-30

    Applicant: DEGUSSA

    Inventor： ALT HANS CHRISTIAN ,  GOELZ ANDREAS ,  ALIG ALFRED

    IPC: F26B3/088 ,  B01D1/18 ,  B01J2/04 ,  C01B9/00 ,  C01B17/38 ,  F26B9/06

    Abstract: Production of anhydrous alkali metal sulfides comprises spray drying an alkali metal sulfide, suspension, dispersion or melt with a mixture of steam and inert gas. An Independent claim is also included for apparatus for carrying out the above process, comprising a drying chamber equipped with an atomizer, a drying gas inlet, a waste gas outlet, a solid separation system connected to the outlet and comprising a waste gas discharge pipe optionally including a filter, a unit for solvent recovery from the waste gas, and equipment for recycling and conditioning the waste gas for re-use as drying gas.

    16.
    发明专利
    未知

    公开(公告)号：DE10256530A1

    公开(公告)日：2004-06-24

    申请号：DE10256530

    申请日：2002-12-04

    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.

    17.
    发明专利
    未知

    公开(公告)号：BRPI0902472A2

    公开(公告)日：2010-04-20

    申请号：BRPI0902472

    申请日：2009-07-22

    Applicant: EVONIK DEGUSSA GMBH

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

    IPC: 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.

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