公开(公告)号：CZ9600498A3

公开(公告)日：1996-07-17

申请号：CZ49896

申请日：1994-04-23

Applicant: DEGUSSA

Inventor： BEWERSDORF MARTIN DR ,  KLASEN CLAAS-JURGEN DR ,  LOOK-HERBER PETRA DR ,  BERTSCH-FRANK BIRGIT DR ,  LIESER THOMAS DR ,  MULLER KLAUS DR

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

CPC classification number: B05B7/061 ,  B01D1/20 ,  B01J2/04 ,  B01J2/16 ,  C01B15/103

公开(公告)号：ES2078127T3

公开(公告)日：1995-12-01

申请号：ES94105353

申请日：1994-04-07

Applicant: DEGUSSA

Inventor： SCHUTTE RUDIGER DR ,  RUHS ALEXANDER DR ,  KLASEN CLAAS-JURGEN DR ,  ALT HANS-CHRISTIAN

IPC: B01J8/18 ,  B01J8/26 ,  B01J8/34 ,  B01J8/36 ,  C01B15/12 ,  F26B3/084 ,  F28D13/00

Abstract: The invention relates to an improved process for producing sodium perborate monohydrate by dehydration of sodium perborate tetrahydrate in a fluidised bed by heated air. According to the invention, contact surfaces are arranged within the fluidised bed, the total area of which contact surfaces constitutes 1 - 500 times the area of the gas distribution plate of the fluidised bed. The contact surfaces are expediently designed as heat exchangers, the surface temperature of which is adjusted to 90 to 110@C. The process leads to a sodium perborate monohydrate having particularly high resistance to abrasion; at the same time the energy requirement is lower than in known processes.

公开(公告)号：ES2179978T3

公开(公告)日：2003-02-01

申请号：ES97106413

申请日：1997-04-18

Applicant: DEGUSSA

Inventor： HOFLER ANDREAS DR ,  ALT HANS-CHRISTIAN ,  KLASEN CLAAS-JURGEN DR ,  FRIEDRICH HEINZ DR ,  HERTZ ULRICH DR ,  MORL LOTHAR PROF DR

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

Abstract: Preparation of a fermented sludge for use as an animal feed additive which contains a fermentation product, comprises granulation, compaction and drying of the sludge in a fluidised bed, at the same time as introducing extra mechanical energy above that needed to fluidise the bed particles, in order to achieve the desired additive particle size and bulk weight.

公开(公告)号：MY130024A

公开(公告)日：2007-05-31

申请号：MYPI9401828

申请日：1994-07-12

Applicant: DEGUSSA

Inventor： BERTSCH-FRANK BIRGIT DR ,  BEWERSDORT MARTIN DR ,  KLASEN CLAAS-JURGEN DR ,  LIESER THOMAS DR ,  MULLER KLAUS DR ,  ROLLMAN JURGEN

IPC: C01B15/10 ,  C11D3/39 ,  C11D3/395 ,  C11D7/54 ,  C11D17/00

Abstract: IT IS KNOWN THAT SODIUM PERCARBONATE IS COATED WITH STABILISING COMPONENTS FOR THE PURPOSE OF INCREASING ITS STORAGE STABILITY. THERE IS A NEED FOR IMPROVED, BORON-FREE, COATED SODIUM PERCARBONATE.COATING SODIUM PERCARBONATE PARTICLES ACCORDING TO THE INVENTION CONTAIN, IN THE CAOTING, SODIUM CARBONATE AND ALSO ONE OR MORE MAGNESIUM COMPOUNDS, PREFERABLY MAGNESIUM SULPHATE, OPTIONALLY IN A PARTIALLY HYDRATED FORM, IN A SINGLE LAYER OR IN SEPARATE LAYERS IN THE COATING. PREFERRED COATED SODIUM PERCARBONATE PARTICLES CONTAIN TWO LAYERS.PARTICLES ACCORDING TO THE INVENTION ARE PREPARED BY SPRYING AQUEOUS SOLUTIONS CONTAINING THE COATING COMPONENTS ONTO SODIUM PERCARBONATE IN A FLUIDISED BED WITH SIMULTANEOUS EVAPORATION OF THE WATER.DUE TO THEIR HIGH STORAGE STABILITY, THE PARTICLES ACCORDING TO THE INVENTION ARE SUITABLE FOR USE IN DETERGENTS, BLEACHES AND CLEANSING AGENTS.

公开(公告)号：ES2136109T3

公开(公告)日：1999-11-16

申请号：ES93118198

申请日：1993-11-10

Applicant: DEGUSSA

Inventor： KLASEN CLAAS-JURGEN DR ,  FOERSTER MARTIN DR ,  HOFLER ANDREAS DR ,  BAUER KLAUS-PETER ,  RIEMENSCHNEIDER HERBERT DR ,  FRANTA OLIVER

IPC: B01J2/14 ,  B01J2/20 ,  B01J2/22 ,  B01J21/18 ,  B01J37/00 ,  C01B31/02 ,  C01B33/18 ,  C01B33/26 ,  C01B37/02 ,  C01B39/02 ,  C08K3/00 ,  C09C1/58 ,  C09D17/00 ,  C11D3/12 ,  C11D3/14 ,  C11D11/00

Abstract: The invention relates to a process for preparing spherical granules from pulverulent solids and the granules prepared by the process. The process is characterised, inter alia, in that the pulverulent solids, if required together with the binders, lubricants and plasticisers conventional for pressing solids are uniformly moistened by addition of an appropriate amount of liquid and mixing in a mixer, pressed in a ring matrix press to give cylindrical agglomerate rods and then rounded in a rounding unit having a fluted disc. The solids granulated by this process exhibit a very narrow grain size spectrum and are distinguished, depending on process conditions, by good flowability and good dispersibility.

公开(公告)号：ES2250534T3

公开(公告)日：2006-04-16

申请号：ES02007442

申请日：2002-03-30

Applicant: DEGUSSA

Inventor： MAUS RALF DR ,  BARTHEL THOMAS ,  KLASEN CLAAS-JURGEN DR

IPC: C01B33/18 ,  C01B33/193 ,  C08K3/36 ,  C09C1/30 ,  C09D7/00 ,  C09D7/12 ,  F26B23/02

Abstract: Ácido silícico de precipitación, caracterizado porque presenta una forma de partícula esférica, así como los siguientes datos físico-técnicos: Superficie BET (DIN 66131) m2/g 63 micras (ISO 8130-1) 100-700Absorción 100-500Densidad 1100-250Residuo Tamaños de partícula d95

公开(公告)号：ES2141993T3

公开(公告)日：2000-04-01

申请号：ES96105688

申请日：1996-04-11

Applicant: DEGUSSA

Inventor： PELGRIMS IVAN ,  KLASEN CLAAS-JURGEN DR

IPC: C01B15/12

公开(公告)号：CZ49896A3

公开(公告)日：1996-07-17

申请号：CZ49896

申请日：1994-04-23

Applicant: DEGUSSA

Inventor： BEWERSDORF MARTIN DR ,  KLASEN CLAAS-JURGEN DR ,  LOOK-HERBER PETRA DR ,  BERTSCH-FRANK BIRGIT DR ,  LIESER THOMAS DR ,  MULLER KLAUS DR

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.