公开(公告)号：AU752501B2

公开(公告)日：2002-09-19

申请号：AU3598499

申请日：1999-03-20

Applicant: DEGUSSA

Inventor： GLENNEBERG JURGEN ,  GOOR GUSTAAF DR ,  STAAB EUGEN ,  ANGERT HUBERT

IPC: C01B15/023 ,  C07C46/00 ,  C07C46/02 ,  C07C50/16 ,  C07C50/20

Abstract: A cyclic anthraquinone process for producing hydrogen peroxide using at least two differently substituted 2-alkylanthraquinones and/or their tetrahydro derivatives. The working solution to be used contains (i) at least one reaction carrier from the series 2-(4-methyl-3-pentenyl) anthraquinone (IHEAQ), 2-(4-methylpentyl) anthraquinone (IHAQ) and their di- and tetrahydro derivatives such as, in particular 2-(4-methylpentyl)- beta -tetrahydroanthraquinone (THIHAQ), and (ii) at least one reaction carrier from the series of the 2-(C1- to C5)-alkylanthraquinones, especially 2-ethylanthraquinone (EAQ), and their tetrahydro derivatives. The reaction carriers according to (i) make up 5 to 95 molar %, especially 20 to 50 molar % of all reaction carriers. The method is distinguished by greater H2O2 capacity, improved hydrogenation kinetics and lesser susceptibility to disturbances. A method for making THIHAQ is also disclosed.

公开(公告)号：AU3598499A

公开(公告)日：1999-11-01

申请号：AU3598499

申请日：1999-03-20

Applicant: DEGUSSA

Inventor： GLENNEBERG JURGEN ,  GOOR GUSTAAF DR ,  STAAB EUGEN ,  ANGERT HUBERT

IPC: C01B15/023 ,  C07C46/00 ,  C07C46/02 ,  C07C50/16 ,  C07C50/20

Abstract: A cyclic anthraquinone process for producing hydrogen peroxide using at least two differently substituted 2-alkylanthraquinones and/or their tetrahydro derivatives. The working solution to be used contains (i) at least one reaction carrier from the series 2-(4-methyl-3-pentenyl) anthraquinone (IHEAQ), 2-(4-methylpentyl) anthraquinone (IHAQ) and their di- and tetrahydro derivatives such as, in particular 2-(4-methylpentyl)- beta -tetrahydroanthraquinone (THIHAQ), and (ii) at least one reaction carrier from the series of the 2-(C1- to C5)-alkylanthraquinones, especially 2-ethylanthraquinone (EAQ), and their tetrahydro derivatives. The reaction carriers according to (i) make up 5 to 95 molar %, especially 20 to 50 molar % of all reaction carriers. The method is distinguished by greater H2O2 capacity, improved hydrogenation kinetics and lesser susceptibility to disturbances. A method for making THIHAQ is also disclosed.

公开(公告)号：AU590452B2

公开(公告)日：1989-11-02

申请号：AU7930287

申请日：1987-10-02

Applicant: DEGUSSA

Inventor： KUNKEL WOLFGANG DR ,  GOOR GUSTAAF DR ,  KEMNADE JORG DR

IPC: C01B15/013 ,  C01B15/023

Abstract: An aqueous hydrogen peroxide extract which contains small amounts of dispersed working solution and a working solution which contains small amounts of dispersed aqueous hydrogen peroxide are collected in the extraction stage of the anthraquinone method for preparing hydrogen peroxide. In order to purify these solutions, the working solution is compounded with aqueous hydrogen peroxide or preferably with water and the hydrogen peroxide extract is compounded with an organic dissolving mixture, preferably a quinone dissolver, and the respective dispersed phase is separated out with the aid of coalescers in a separator unit. It is especially preferable to add 1-3% by volume water or 1-3% quinone dissolver before the coalescer stages and to use coalescers with a drop-enlarging design and filter layers consisting of thermally desized glass filament yarn. The after-purification in accordance with the method results in a hydrogen peroxide which is improved as regards carbon content and color index as well as in an increase in yield of hydrogen peroxide and in a working solution with constant rel. moisture.

公开(公告)号：ES2285014T3

公开(公告)日：2007-11-16

申请号：ES03016846

申请日：1998-06-08

Applicant: DEGUSSA

Inventor： HASENZAHL STEFFEN DR ,  MARKOWZ GEORG DR ,  VIANDT MATHIAS ,  ECKERHART ROLAND DR ,  THIELE GEORG DR ,  GOOR GUSTAAF DR

IPC: B01J29/04 ,  B01J29/89 ,  B01J37/00 ,  C01B37/00

Abstract: Proceso para la producción de granulados que contienen titaniosilicalita-1, caracterizado porque se cristaliza en condiciones hidrotérmicas un gel de síntesis, que contiene una fuente de SiO2, una fuente de TiO2, un compuesto que contiene iones tetra-n-propilamonio, una base y agua, la suspensión de titaniosilicalita-1 resultante, opcionalmente después de concentración y/o adición de otros materiales, se somete a un secado por pulverización o un secado por pulverización-granulación en lecho fluidizado y el granulado de titaniosilicalita-1 así formado se calcina a una temperatura de 400 a 1000ºC, preferiblemente de 500 a 750ºC.

公开(公告)号：ES2218730T3

公开(公告)日：2004-11-16

申请号：ES98110481

申请日：1998-06-08

Applicant: DEGUSSA

Inventor： HASENZAHL STEFFEN DR ,  MARKOWZ GEORG ,  VIANDT MATHIAS ,  ROLAND ECKEHART DR ,  THIELE GEORG DR ,  GOOR GUSTAAF DR

IPC: B01J29/04 ,  B01J29/89 ,  B01J37/00 ,  C01B37/00

Abstract: Production of granulates containing titanium silicalite-1 (I) comprises hydrothermal crystallization of a synthesis gel containing a silica source, a titanium dioxide source, a tetra-n-propylammonium compound, a base and water; spray drying or fluidized bed spray granulation drying the resultant (I) suspension, optionally after concentration and/or addition of other substances; and calcining the (I) granulate at 400-1000, preferably 500-750degreesC. An Independent claim is also included for (I) granulates per se.

公开(公告)号：DE4418931A1

公开(公告)日：1995-12-07

申请号：DE4418931

申请日：1994-05-31

Applicant: DEGUSSA

Inventor： BIRKENBEIL HANS ,  BRAND ULRICH DR ,  GOOR GUSTAAF DR ,  KUNKEL WOLFGANG DR

IPC: B01D71/02 ,  B01D61/14 ,  B01J19/24 ,  B01J23/44 ,  B01J23/96 ,  B01J37/00 ,  B01J38/00 ,  C01B15/023 ,  B01D29/33

Abstract: Sepn. of a catalyst-free working soln. (I) from a working soln. (II) contg. noble metal black from the hydrogenation cycle of the anthraquinone process for H2O2 mfr. involves filtration with filter candles, which periodically are back-washed with (I) or the solvent present in (I). The filter candles have an open-pore support based on C, metallic or ceramic material, with an average pore size of 5-100 microns, and, on one side of the support, an opt. laminated membrane of ceramic material with an average pore size of more than 1 to 10 microns.

公开(公告)号：BR9909563A

公开(公告)日：2000-12-19

申请号：BR9909563

申请日：1999-03-20

Applicant: DEGUSSA

Inventor： GLENNEBERG JUERGEN DR ,  GOOR GUSTAAF DR ,  STAAB EUGEN DR ,  ANGERT HUBERT DR

IPC: C01B15/023 ,  C07C46/00 ,  C07C46/02 ,  C07C50/16 ,  C07C50/20

Abstract: A cyclic anthraquinone process for producing hydrogen peroxide using at least two differently substituted 2-alkylanthraquinones and/or their tetrahydro derivatives. The working solution to be used contains (i) at least one reaction carrier from the series 2-(4-methyl-3-pentenyl) anthraquinone (IHEAQ), 2-(4-methylpentyl) anthraquinone (IHAQ) and their di- and tetrahydro derivatives such as, in particular 2-(4-methylpentyl)- beta -tetrahydroanthraquinone (THIHAQ), and (ii) at least one reaction carrier from the series of the 2-(C1- to C5)-alkylanthraquinones, especially 2-ethylanthraquinone (EAQ), and their tetrahydro derivatives. The reaction carriers according to (i) make up 5 to 95 molar %, especially 20 to 50 molar % of all reaction carriers. The method is distinguished by greater H2O2 capacity, improved hydrogenation kinetics and lesser susceptibility to disturbances. A method for making THIHAQ is also disclosed.

公开(公告)号：DE3633672C2

公开(公告)日：1993-09-30

申请号：DE3633672

申请日：1986-10-03

Applicant: DEGUSSA

Inventor： KUNKEL WOLFGANG DR ,  GOOR GUSTAAF DR ,  KEMNADE JOERG DR

IPC: C01B15/013 ,  C01B15/023

Abstract: An aqueous hydrogen peroxide extract which contains small amounts of dispersed working solution and a working solution which contains small amounts of dispersed aqueous hydrogen peroxide are collected in the extraction stage of the anthraquinone method for preparing hydrogen peroxide. In order to purify these solutions, the working solution is compounded with aqueous hydrogen peroxide or preferably with water and the hydrogen peroxide extract is compounded with an organic dissolving mixture, preferably a quinone dissolver, and the respective dispersed phase is separated out with the aid of coalescers in a separator unit. It is especially preferable to add 1-3% by volume water or 1-3% quinone dissolver before the coalescer stages and to use coalescers with a drop-enlarging design and filter layers consisting of thermally desized glass filament yarn. The after-purification in accordance with the method results in a hydrogen peroxide which is improved as regards carbon content and color index as well as in an increase in yield of hydrogen peroxide and in a working solution with constant rel. moisture.

公开(公告)号：GR3003467T3

公开(公告)日：1993-02-17

申请号：GR910402198

申请日：1991-12-30

Applicant: DEGUSSA

Inventor： KUNKEL WOLFGANG DR ,  GOOR GUSTAAF DR ,  KEMNADE JOERG DR

IPC: C01B15/013 ,  C01B15/023

Abstract: An aqueous hydrogen peroxide extract which contains small amounts of dispersed working solution and a working solution which contains small amounts of dispersed aqueous hydrogen peroxide are collected in the extraction stage of the anthraquinone method for preparing hydrogen peroxide. In order to purify these solutions, the working solution is compounded with aqueous hydrogen peroxide or preferably with water and the hydrogen peroxide extract is compounded with an organic dissolving mixture, preferably a quinone dissolver, and the respective dispersed phase is separated out with the aid of coalescers in a separator unit. It is especially preferable to add 1-3% by volume water or 1-3% quinone dissolver before the coalescer stages and to use coalescers with a drop-enlarging design and filter layers consisting of thermally desized glass filament yarn. The after-purification in accordance with the method results in a hydrogen peroxide which is improved as regards carbon content and color index as well as in an increase in yield of hydrogen peroxide and in a working solution with constant rel. moisture.

公开(公告)号：BR8705011A

公开(公告)日：1988-05-24

申请号：BR8705011

申请日：1987-09-29

Applicant: DEGUSSA

Inventor： KUNKEL WOLFGANG ,  GOOR GUSTAAF DR ,  KEMNADE JORG DR

IPC: C01B15/013 ,  C01B15/023

Abstract: An aqueous hydrogen peroxide extract which contains small amounts of dispersed working solution and a working solution which contains small amounts of dispersed aqueous hydrogen peroxide are collected in the extraction stage of the anthraquinone method for preparing hydrogen peroxide. In order to purify these solutions, the working solution is compounded with aqueous hydrogen peroxide or preferably with water and the hydrogen peroxide extract is compounded with an organic dissolving mixture, preferably a quinone dissolver, and the respective dispersed phase is separated out with the aid of coalescers in a separator unit. It is especially preferable to add 1-3% by volume water or 1-3% quinone dissolver before the coalescer stages and to use coalescers with a drop-enlarging design and filter layers consisting of thermally desized glass filament yarn. The after-purification in accordance with the method results in a hydrogen peroxide which is improved as regards carbon content and color index as well as in an increase in yield of hydrogen peroxide and in a working solution with constant rel. moisture.