-
公开(公告)号:DE502005000420D1
公开(公告)日:2007-04-12
申请号:DE502005000420
申请日:2005-08-17
Applicant: DEGUSSA
Inventor: KORTH KARSTEN DR , ALBERT PHILIPP DR , WOLF DORIT DR , SEEBALD STEFFEN DR , PIETER REIMUND DR , ALIG ALFRED
IPC: C07F7/18
Abstract: Preparation of mercaptoorganyl(alkoxysilanes) involves hydrogenation of bis(alkoxysilylorganyl)polysulfides with hydrogen and a transition metal catalyst in a solvent without the addition of alcohols, hydrogen sulfide or water.
-
公开(公告)号:DE102005020534A1
公开(公告)日:2006-04-13
申请号:DE102005020534
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: Preparation of mercaptoorganyl(alkoxysilanes) involves hydrogenation of bis(alkoxysilylorganyl)polysulfides with hydrogen and a transition metal catalyst in a solvent without the addition of alcohols, hydrogen sulfide or water.
-
公开(公告)号:BR0305498A
公开(公告)日:2004-08-31
申请号:BR0305498
申请日:2003-12-03
Applicant: DEGUSSA
Inventor: ALT HANS CHRISTIAN , GOELZ ANDREAS , ALIG ALFRED
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.
-
公开(公告)号:CA2674253A1
公开(公告)日:2010-01-31
申请号:CA2674253
申请日:2009-07-30
Applicant: EVONIK DEGUSSA GMBH
Inventor: SCHWAN STEPHANIE , KOENIGSTEIN STEFAN , DESCHLER ULRICH , ALIG ALFRED , DROEGE HELMUT , KIEFER INGO , KORTH KARSTEN
Abstract: The invention relates to a process for preparing organosilanes of the general formula I (see formula I) by reacting (haloorganyl)alkoxysilane of the formula II (see formula II) with hydrous alkali metal hydrogensulphide, sulphur and alkali metal carbonate in alcohol, wherein the molar (haloorganyl)alkoxysilane of the formula II to alkali metal hydrogensulphide ratio is between 1:0.4 and 1:0.75, and the molar alkali metal hydrogensulphide to alkali metal carbonate ratio is between 1:0.5 and 1:1.5.
-
公开(公告)号:UA88151C2
公开(公告)日:2009-09-25
申请号:UAA200604840
申请日:2006-05-03
Applicant: DEGUSSA
Inventor: KORTH KARSTEN , WOLF DORIT , SEEBALD STEFFEN , ALBERT PHILIPP , PIETER REIMUND , ALIG ALFRED
IPC: C07F7/18
Abstract: Узаявціописанийспосібодержаннямеркаптоорганіл(алкоксисиланів), якийполягаєу тому, щобіс(алкоксисилілорганіл)полісульфідигідруютьпіддієюводнюв присутностіпринаймніодногоспиртутаодноголегованогометалевогокаталізатора, якийміститьпринаймніоднуречовинуізгрупи, якавключаєзалізо, залізовміснусполуку, нікель, нікелевміснусполуку, паладій, паладієвміснусполуку, осмій, осмієвміснусполуку, рутеній, рутенієвміснусполуку, родій, родієвміснусполуку, іридійтаіридієвміснусполуку, іпринаймніоднулегуючудомішку.
-
公开(公告)号:UA85383C2
公开(公告)日:2009-01-26
申请号:UAA200508556
申请日:2005-09-06
Applicant: DEGUSSA
Inventor: KORTH KARSTEN , ALBERT PHILIPP , WOLF DORIT , SEEBALD STEFFEN , PIETER REIMUND , ALIG ALFRED
Abstract: Взаявкеописываетсяспособполучениямеркаптоорганил (алкоксисиланов), которыйзаключаетсяв том, чтобис(алкоксисилилорганил)полисульфидыгидрируютпритемпературениже 190 °Си давлениименее 100 барподдействиемводородаи вприсутствиикатализаторанаосновепереходногометаллабездобавленияводы, спиртаили H2S.
-
公开(公告)号:ES2270926T3
公开(公告)日:2007-04-16
申请号:ES01115055
申请日:2001-06-21
Applicant: DEGUSSA
Inventor: ALIG ALFRED , BATZ SOHN CHRISTOPH DR , DESCHLER ULRICH DR , MICHEL RUDOLF , MUNZENBERG JORG DR , SONNENSCHEIN RAYMUND DR
Abstract: Procedimiento para la preparación de organosililalquilpolisulfanos de la fórmula general I (R1R2R3SiR4)2Sx (I) en la cual significan R1, R2, R3: iguales o distintos entre sí, grupos alquilo y/o alcoxi ramificados y no ramificados, con una longitud de cadena de 1¿8 átomos de C, radicales arilo, estando presente al menos un grupo alcoxi; R4 un radical alquileno bivalente, con una longitud de cadena de 1¿8 átomos de C tal, o -(CH2)n-C6H4-(CH2)n- con n = 1¿4, x: un número = 1, caracterizado porque, organosililalquilpolisulfanos de la fórmula general II (R1R2R3SiR4)2Sy (II) en la cual R1, R2, R3 y R4 tienen el significado indicado arriba, e y: significa un número > x, reacciona con un sulfuro iónico de la fórmula general III M+2S2- (III) en la cual M+ representa un catión de metal alcalino, un ion amonio, un semicatión de metal alcalinotérreo o un semicatión zinc, y con un halogenuro de organosililalquilo de la fórmula general R1R2R3SiR4X (IV) en la cual R1, R2, R3 y R4 poseen el significadoindicado arriba, y x : es cloro, bromo o yodo, disponiéndose previamente el organosililalquilpolisulfano de cadena larga de la fórmula general (II) y el halogenuro de organosililalquilo de la fórmula general (IV), y a esta solución se añade en varias porciones el sulfuro iónico de la fórmula general (III).
-
公开(公告)号:DE102005037690A1
公开(公告)日:2007-02-15
申请号:DE102005037690
申请日:2005-08-10
Applicant: DEGUSSA
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.
-
公开(公告)号:MXPA06008991A
公开(公告)日:2007-02-09
申请号:MXPA06008991
申请日:2006-08-08
Applicant: DEGUSSA
Inventor: ALIG ALFRED , DESCHLER ULRICH , FRINGS ALBERT , JANSSENS LOUIS , LOTTER STEFAN
IPC: C07F7/18
Abstract: La invencion se refiere a un proceso para la preparacion de un compuesto de organosilicio de la formula general (I) ((R1R2R3SiR4)2Sx (I)) al hacer reaccionar haloalcoxisilanos de la formula general (II) (R1R2R3SiR4X (II)) con un polisulfuro seco de la formula general (III) (M2Sz (III)) y/o sulfuro seco de la formula general IV (M2S (VI)) y opcionalmente azufre en un solvente organico, el solvente organico se remueve a partir de la suspension resultante, la mezcla que contiene el compuesto de organosilicio de la formula general (I) y el solido MX se mezclan con agua que contiene al menos una solucion amortiguadora, y las fases resultantes se separan.
-
公开(公告)号:DE102005020534B4
公开(公告)日:2006-07-06
申请号:DE102005020534
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: Preparation of mercaptoorganyl(alkoxysilanes) involves hydrogenation of bis(alkoxysilylorganyl)polysulfides with hydrogen and a transition metal catalyst in a solvent without the addition of alcohols, hydrogen sulfide or water.
-
-
-
-
-
-
-
-
-