公开(公告)号：BR0116796A

公开(公告)日：2004-02-03

申请号：BR0116796

申请日：2001-10-26

Applicant: DEGUSSA

Inventor： JAKOB HARALD ,  HESSEBERGER WALDEMAR ,  KAISER LOTHAR ,  LATTICH JUERGEN ,  OVERDICK RALPH

IPC: C01B15/00 ,  C01B15/10

Abstract: The invention relates to uncoated and/or coated sodium percarbonate with improved internal stability and storage stability; and, a process that provides uncoated and/or coated sodium percarbonate with improved internal stability and storage stability.

公开(公告)号：CA2432559A1

公开(公告)日：2002-07-04

申请号：CA2432559

申请日：2001-10-26

Applicant: DEGUSSA

Inventor： KAISER LOTHAR ,  HESSBERGER WALDEMAR ,  JAKOB HARALD ,  OVERDICK RALPH ,  LATTICH JURGEN

IPC: C01B15/00 ,  C01B15/10

Abstract: The invention relates to a method for increasing the inner stability of encapsulated and non-encapsulated sodium percarbonate. According to the invention, particulate, dry sodium percarbonate is treated for at least 2 minutes at a temperature of 70 to 120 ~C and during the treatment, the air surrounding the particles is exchanged, in order to maintain or reduce humidity.

公开(公告)号：DE19830946A1

公开(公告)日：2000-01-13

申请号：DE19830946

申请日：1998-07-10

Applicant: DEGUSSA

Inventor： BERTSCH-FRANK BRIGIT ,  BEWERSDORF MARTIN ,  KAISER LOTHAR ,  KOHLEN RAINER ,  OVERDICK RALPH ,  SCHEIBE MICHAEL

IPC: B01J2/16 ,  C01B15/00 ,  C01B15/10 ,  C11D3/39 ,  C01B15/12

Abstract: Fluidized-bed coating of peroxy compounds, especially sodium percarbonate for use in detergent and bleaching products. Production of coated peroxy compounds by fluidized-bed coating comprises spraying an aqueous coating solution onto particles of the peroxy compound in a fluidized-bed chamber and drying the coating by means of a fluidizing gas injected through a radial distributor plate at a fluidized bed temperature of 30-70 degrees C, where the fluidizing gas emerges (upwards) from openings in the distributor plate at an angle of less than 35 degrees to the horizontal and the coating solution emerges (downwards) from spray nozzles at the same angle.

公开(公告)号：BR0317554B1

公开(公告)日：2013-12-24

申请号：BR0317554

申请日：2003-12-02

Applicant: EVONIK DEGUSSA GMBH

Inventor： JAKOB HARALD ,  ZIMMERMANN KLAUS ,  OVERDICK RALPH ,  LEONHARDT WOLFGANG

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

Abstract: The invention relates to coated peroxygen compounds, in particular coated sodium percarbonate particles, with a delayed release of the active oxygen (=increased dissolving time). Particles according to the invention comprise an innermost shell layer, comprising at least one hydrate-forming inorganic salt, and an outer shell layer, comprising 0.2 to 3 wt. % alkali metal silicate with a modulus of greater than 2.5, in particular 3 to 5, the outer layer having been prepared using an alkali metal silicate solution with an alkali metal silicate concentration in the range from 2 to 20 wt. %. By lowering the alkali metal silicate concentration in the solution to be used, the dissolving time can be increased for the same shell amount. The dissolving time can be increased greatly by the layer sequence and the concentration of the solution, at a low amount of alkali metal silicate.

公开(公告)号：BRPI0715209A2

公开(公告)日：2013-05-07

申请号：BRPI0715209

申请日：2007-07-04

Applicant: EVONIK DEGUSSA GMBH

Inventor： LEININGER STEFAN ,  JAKOB HARALD ,  OVERDICK RALPH

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

公开(公告)号：CL2012002994A1

公开(公告)日：2013-02-08

申请号：CL2012002994

申请日：2012-10-25

Applicant: EVONIK DEGUSSA GMBH

Inventor： LEININGER STEFAN ,  JAKOB HARALD ,  OVERDICK RALPH

IPC: C11D17/00 ,  C11D3/02 ,  C11D3/39

Abstract: Partícula de blanqueo que comprende un núcleo de percarbonato de sodio, una capa de recubrimiento interna de sulfato de sodio como ternardita o burkeita y una capa de recubrimiento externa que comprende un aglutinante hidrosoluble y un activador de blanqueo; método para su producción; y limpiador.

公开(公告)号：EG25340A

公开(公告)日：2011-12-14

申请号：EG2009010096

申请日：2009-01-21

Applicant: EVONIK DEGUSSA GMBH

Inventor： LEININGER STEFAN ,  JAKOB HARALD ,  OVERDICK RALPH

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

公开(公告)号：EG25260A

公开(公告)日：2011-11-29

申请号：EG2009010095

申请日：2009-01-21

Applicant: EVONIK DEGUSSA GMBH

Inventor： LEININGER STEFAN ,  JAKOB HARALD ,  OVERDICK RALPH

IPC: C11D3/39 ,  C01B15/10 ,  C11D3/02 ,  C11D3/12 ,  C11D17/00

Abstract: Sodium percarbonate particle (I) comprises a coating layer containing moisture free sodium sulfate (70-99.8 wt.%) and sodium borate (0.2-2 wt.%), where the parts by weight of the coating layer is 1-10% relative to the mass of the sodium percarbonate particles. Independent claims are included for a detergent and a cleaning agent containing (I).

公开(公告)号：CA2432559C

公开(公告)日：2009-10-20

申请号：CA2432559

申请日：2001-10-26

Applicant: DEGUSSA

Inventor： JAKOB HARALD ,  OVERDICK RALPH ,  KAISER LOTHAR ,  LATTICH JURGEN ,  HESSBERGER WALDEMAR

IPC: C01B15/10 ,  C01B15/00

Abstract: The invention relates to a method for increasing the inner stability of encapsulated and non-encapsulated sodium percarbonate. According to the invention, particulate, dry sodium percarbonate is treated for at least 2 minutes at a temperature of 70 to 120 ~C and during the treatment, the air surrounding the particles is exchanged, in order to maintain or reduce humidity.

公开(公告)号：ES2317433T3

公开(公告)日：2009-04-16

申请号：ES06117986

申请日：2006-07-27

Applicant: EVONIK DEGUSSA GMBH

Inventor： LEININGER STEFAN ,  JAKOB HARALD ,  OVERDICK RALPH

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

Abstract: Partículas de percarbonato de sodio con una capa de envoltura, caracterizadas porque la capa de envoltura contiene sulfato de sodio en forma de una fase de alta temperatura de sulfato de sodio y/o de una fase de alta temperatura de una sal doble con la composición Na4(SO4)1+n(CO3)1-n con n de 0 a 0,5.