公开(公告)号：EP0687245B1

公开(公告)日：1998-04-08

申请号：EP94907569

申请日：1994-02-15

Applicant: DEGUSSA

Inventor： KLASEN CLAAS-JUERGEN ,  BERTSCH-FRANK BIRGIT ,  LIESER THOMAS ,  SCHUBERT PETER ,  MUELLER KLAUS

IPC: B01D12/00 ,  C01B15/10 ,  C11D3/39 ,  C11D17/00

CPC classification number: C01B15/106 ,  C11D3/3937 ,  C11D3/3942 ,  C11D17/0039

Abstract: The invention relates to a process for improving the storage stability of sodium percarbonate (2Na2CO3.3H2O2) by encasing it in sodium perborate. According to the invention, sodium percarbonate wet salt, obtained by the reaction of soda with hydrogen peroxide in the aqueous phase and separating the salt from the aqueous phase, is treated with a sodium perborate-containing solution or suspension in a solid-liquid separation device according to a process of displacement wash. The invention provides longer storage stability with a thinner perborate coating than prior art processes.

公开(公告)号：DE69605945D1

公开(公告)日：2000-02-03

申请号：DE69605945

申请日：1996-11-14

Applicant: DEGUSSA

Inventor： SCHUETTE RUEDIGER ,  BEWERSDORF MARTIN ,  KLASEN CLAAS-JUERGEN

IPC: C01B15/10 ,  C11D3/02 ,  C11D3/08 ,  C11D3/39 ,  C11D17/00

Abstract: In order to increase active oxygen stability, sodium percarbonate is coated with single or multiple layers of various substances. Sodium percarbonate particles consist of a core of sodium percarbonate fluidized bed spray granulate and sodium sulphate, which may be partially hydrated, as the sole constituent of a single coating layer. The particles exhibit both elevated active oxygen stability and very good ensilability. The coating layer is applied by spraying an aqueous Na2SO4 solution onto the particles to be coated, which were themselves produced by fluidized bed spray granulation, in a fluidized bed and vaporizing water at a fluidized bed temperature of 35 to 100 DEG C.

公开(公告)号：AT188191T

公开(公告)日：2000-01-15

申请号：AT96939035

申请日：1996-11-14

Applicant: DEGUSSA

Inventor： SCHUETTE RUEDIGER ,  BEWERSDORF MARTIN ,  KLASEN CLAAS-JUERGEN

IPC: C01B15/10 ,  C11D3/02 ,  C11D3/08 ,  C11D3/39 ,  C11D17/00

Abstract: In order to increase active oxygen stability, sodium percarbonate is coated with single or multiple layers of various substances. Sodium percarbonate particles consist of a core of sodium percarbonate fluidized bed spray granulate and sodium sulphate, which may be partially hydrated, as the sole constituent of a single coating layer. The particles exhibit both elevated active oxygen stability and very good ensilability. The coating layer is applied by spraying an aqueous Na2SO4 solution onto the particles to be coated, which were themselves produced by fluidized bed spray granulation, in a fluidized bed and vaporizing water at a fluidized bed temperature of 35 to 100 DEG C.

公开(公告)号：ZA9704733B

公开(公告)日：1997-12-30

申请号：ZA9704733

申请日：1997-05-29

Applicant: DEGUSSA

Inventor： HOEFLER ANDREAS ,  ALT HANS-CHRISTIAN ,  KLASEN CLAAS-JUERGEN ,  FRIEDRICH HEINZ ,  HERTZ ULRICH ,  MOERL LOTHAR ,  SCHUETTE RUEDIGER

IPC: A23K1/165 ,  A23K1/00 ,  A23K1/16 ,  A23K1/20 ,  B01J2/16 ,  C12P13/04 ,  C12P29/00 ,  A23K

CPC classification number: B01J2/16 ,  A23K10/12 ,  A23K20/142 ,  A23K40/10

公开(公告)号：AT153637T

公开(公告)日：1997-06-15

申请号：AT94915105

申请日：1994-04-23

Applicant: DEGUSSA

Inventor： BEWERSDORF MARTIN ,  KLASEN CLAAS-JUERGEN ,  LOOK-HERBER PETRA ,  BERTSCH-FRANK BIRGIT ,  LIESER THOMAS ,  MUELLER KLAUS

IPC: B01D1/20 ,  B01J2/04 ,  B01J2/16 ,  B05B7/06 ,  C01B15/10

Abstract: Sodium percarbonate of the formula 2 Na2CO3 3 H2O2 can be produced by fluidised-bed spray granulation by spraying an aqueous solution of sodium carbonate and a hydrogen peroxide solution on sodium percarbonate seeds and evaporating water. The previously necessary use of phosphorus-containing crystallisation inhibitor to prevent blockages and incrustations in and on the nozzle can be avoided by the invention if the solutions are sprayed using a single three-substance pulverisation nozzle with the external mixing of the solutions.

公开(公告)号：CA2204383A1

公开(公告)日：1996-05-17

申请号：CA2204383

申请日：1995-10-19

Applicant: DEGUSSA

Inventor： BERTSCH-FRANK BIRGIT ,  BEWERSDORF MARTIN ,  KLASEN CLAAS-JUERGEN ,  LIESER THOMAS ,  SCHUETTE RUEDIGER

IPC: C01B15/16 ,  C11D3/08 ,  C11D3/39 ,  C11D3/395 ,  C11D17/00 ,  C11D7/02 ,  C11D11/00 ,  C11D17/06 ,  C11D7/18 ,  C11D7/20

Abstract: The invention concerns washing, bleaching and cleaning agent compositions containing coated alkali metal percarbonate, in particular sodium percarbonate, and conventional components of such compositions, including in particular silicate-like builders. Compositions according to the invention, which have good stability during storage yet dissolve rapidly and thus render extension of the washing, bleaching or cleaning period unnecessary, contain an alkali metal percarbonate with an Oa* content in the composition of at least 70 %, a dissolution time of the alkali metal percarbonate in water of less than 10 minutes, determined under specific test conditions in each case, and a morphology index MI greater than 0.03, in particular greater than 0.04, in which: MI = 0.0448 . CV + 3.61 . 106 . d-3; CV = .sigma./d; .sigma. = .SIGMA.(di-d)2.wi/100 and d = .SIGMA.di.wi/100.

公开(公告)号：CA2170599A1

公开(公告)日：1995-03-09

申请号：CA2170599

申请日：1994-04-23

Applicant: DEGUSSA

Inventor： BEWERSDORF MARTIN ,  KLASEN CLAAS-JUERGEN ,  LOOK-HERBER PETRA ,  BERTSCH-FRANK BIRGIT ,  LIESER THOMAS ,  MUELLER KLAUS

IPC: B01D1/20 ,  B01J2/04 ,  B01J2/16 ,  B05B7/06 ,  C01B15/10

Abstract: Sodium percarbonate of the formula 2 Na2CO3 be produced by fluidised-bed spray granulation by spraying an aqueous solution of sodium carbonate and a hydrogen peroxide solution on sodium percarbonate seeds and evaporating water. The previously necessary use of phosphorous-containing crystallisation inhibitor to prevent blockages and incrustations in and on the nozzle can be avoided by the invention if the solutions are sprayed using a single threesubstance pulverisation nozzle with the external mixing of the solutions.

公开(公告)号：BRPI0412507B1

公开(公告)日：2014-09-02

申请号：BRPI0412507

申请日：2004-06-19

Applicant: EVONIK DEGUSSA GMBH

Inventor： POHLISCH JOACHIM ,  KLASEN CLAAS-JUERGEN ,  ALT CHRISTIAN ,  MOLL MATTHIAS ,  STOCKHAMMER STEFAN

IPC: A23K1/00 ,  A23K1/16 ,  A23L29/281 ,  B01J2/16

公开(公告)号：ES2179978T5

公开(公告)日：2013-07-26

申请号：ES97106413

申请日：1997-04-18

Applicant: EVONIK DEGUSSA GMBH

Inventor： HOEFLER ANDREAS ,  ALT HANS-CHRISTIAN ,  KLASEN CLAAS-JUERGEN ,  FRIEDRICH HEINZ ,  HERTZ ULRICH ,  MOERL LOTHAR ,  SCHUETTE RUEDIGER

IPC: A23K1/00 ,  A23K1/165 ,  A23K1/16 ,  A23K1/20 ,  B01J2/16 ,  C12P13/04 ,  C12P29/00

Abstract: LA INVENCION SE REFIERE A UN PROCEDIMIENTO PARA LA PRODUCCION DE UN SUPLEMENTO ALIMENTICIO PARA ANIMALES BASADO EN UN CALDO DE FERMENTACION, CONTENIENDO EL SUPLEMENTO, EN SU TOTALIDAD O EN SU MAYOR PARTE, UN PRODUCTO DE FERMENTACION Y LOS DEMAS MATERIALES DE CONTENIDO DEL CALDO DE FERMENTACION. LA INVENCION SE CARACTERIZA PORQUE EL CALDO DE FERMENTACION ES, EN UNA SOLA FASE, GRANULADO, COMPACTADO Y SECADO EN UN LECHO FLUIDIZADO, INTRODUCIENDOSE MIENTRAS TANTO POR VIA MECANICA EN EL LECHO FLUIDIZADO, ADEMAS DE LA ENERGIA NECESARIA PARA PRODUCIR EL LECHO FLUIDIZADO, UNA CANTIDAD DE ENERGIA SUFICIENTE PARA AJUSTAR EL DIAMETRO DE GRANO DESEADO Y LA DENSIDAD DE AGITACION DESEADA. DE ESTE MODO, SE CONSIGUE ENTRE OTRAS COSAS, PRODUCIR CONTINUAMENTE EN UNA UNICA FASE GRANULADOS SEGUN LA ESPECIFICACION DE ADITIVOS TALES COMO LISINA, TIONINA O TRIPTOFANO, UTILIZANDO COMO SUSTANCIAS DE PARTIDA, EN PARTICULAR CALDOS DE FERMENTACION CRUDOS.

公开(公告)号：DE10105750A1

公开(公告)日：2002-10-10

申请号：DE10105750

申请日：2001-02-08

Applicant: DEGUSSA

Inventor： MAUS RALF ,  BARTHEL THOMAS ,  KLASEN CLAAS-JUERGEN

IPC: C01B33/12 ,  C01B33/18 ,  C01B33/193 ,  C08K3/36 ,  C08K7/26 ,  C08L101/00 ,  C09C1/28 ,  C09C1/30 ,  C09D5/28 ,  C09D7/00 ,  C09D201/00

Abstract: The present invention provides silica particles, which include the following physical properties: BET surface area: 100-700 m 2 /g; DBP absorption: 100-500 g/100 g; tamped density: 100-250 g/l; ALPINE sieve residue>63mu: 95 50 5 5 50 95