公开(公告)号：MX9703629A

公开(公告)日：1997-11-29

申请号：MX9703629

申请日：1997-05-16

Applicant: DEGUSSA

Inventor： KRAUSE HALMFRIED ,  ROTGERINK HERMANUS LANSINK ,  TACKE THOMAS ,  PANSTER PETER ,  BURMEISTER ROLAND

IPC: B01J21/08 ,  B01J23/52 ,  B01J23/66 ,  B01J35/10 ,  B01J37/00 ,  C01B33/12 ,  C04B35/14 ,  C04B35/634 ,  C04B35/636 ,  C07B61/00 ,  C07C29/04 ,  C07C31/08 ,  C07C31/10 ,  C07C67/035 ,  C07C67/04 ,  C07C69/15 ,  C09C1/30

Abstract: Los comprimidos a base de dioxido de silicio producido pirogénicamente con las siguientes características físico-químicas: Diámetro exterior 0.8 - 20 mm Superficie BET 30 - 400 m2/g Volumen de los poros 0.5 - 1.3 ml/g Resistencia a la rotura 10 a 250 N Composicion > 99.8 % en peso de SiO2 Abrasion

公开(公告)号：ES2188818T3

公开(公告)日：2003-07-01

申请号：ES97107496

申请日：1997-05-07

Applicant: DEGUSSA

Inventor： KRAUSE HELMFRIED ,  LANSINK-ROTGERINK HANS ,  TACKE THOMAS ,  PANSTER PETER ,  BURMEISTER ROLAND

IPC: B01J21/08 ,  B01J23/52 ,  B01J23/66 ,  B01J35/10 ,  B01J37/00 ,  C01B33/12 ,  C04B35/14 ,  C04B35/634 ,  C04B35/636 ,  C07B61/00 ,  C07C29/04 ,  C07C31/08 ,  C07C31/10 ,  C07C67/035 ,  C07C67/04 ,  C07C69/15 ,  C09C1/30

Abstract: Pressings based on pyrogenic silica (SiO2) have an outside diameter of 0.8-20 mm, BET surface area of 30-400 m /g, pore volume of 0.5-1.3 ml/g, breaking strength of 10-250 N, composition > 99.8 wt.% SiO2 and

公开(公告)号：ZA9308865B

公开(公告)日：1994-08-02

申请号：ZA9308865

申请日：1993-11-26

Applicant: DEGUSSA

Inventor： BURMEISTER ROLAND ,  DELLER KLAUS ,  DESPEYROUX BERTRAND

IPC: B01J37/02 ,  B01J

CPC classification number: B01J37/0223 ,  B01J37/0232

公开(公告)号：SG72737A1

公开(公告)日：2000-05-23

申请号：SG1997001543

申请日：1997-05-13

Applicant: DEGUSSA

Inventor： KRAUSE HELMFRIED ,  ROTGERINK HERMANUS LANSINK ,  TACKE THOMAS ,  PANSTER PETER ,  BURMEISTER ROLAND

IPC: B01J21/08 ,  B01J23/52 ,  B01J23/66 ,  B01J35/10 ,  B01J37/00 ,  C01B33/12 ,  C04B35/14 ,  C04B35/634 ,  C04B35/636 ,  C07B61/00 ,  C07C29/04 ,  C07C31/08 ,  C07C31/10 ,  C07C67/035 ,  C07C67/04 ,  C07C69/15 ,  C09C1/30

Abstract: Pressings based on pyrogenic silica (SiO2) have an outside diameter of 0.8-20 mm, BET surface area of 30-400 m /g, pore volume of 0.5-1.3 ml/g, breaking strength of 10-250 N, composition > 99.8 wt.% SiO2 and

公开(公告)号：BR9704229A

公开(公告)日：1999-01-05

申请号：BR9704229

申请日：1997-05-19

Applicant: DEGUSSA

Inventor： ROTGERINK HERMANUS LANSINK ,  KRAUSE HELMFRIED ,  BURMEISTER ROLAND ,  TACKE THOMAS ,  PANSTER PETER

IPC: B01J21/08 ,  B01J23/52 ,  B01J23/66 ,  B01J35/10 ,  B01J37/00 ,  C01B33/12 ,  C04B35/14 ,  C04B35/634 ,  C04B35/636 ,  C07B61/00 ,  C07C29/04 ,  C07C31/08 ,  C07C31/10 ,  C07C67/035 ,  C07C67/04 ,  C07C69/15 ,  C09C1/30 ,  B01J21/06

Abstract: Pressings based on pyrogenic silica (SiO2) have an outside diameter of 0.8-20 mm, BET surface area of 30-400 m /g, pore volume of 0.5-1.3 ml/g, breaking strength of 10-250 N, composition > 99.8 wt.% SiO2 and

公开(公告)号：CA2205416A1

公开(公告)日：1997-11-17

申请号：CA2205416

申请日：1997-05-15

Applicant: DEGUSSA

Inventor： KRAUSE HELMFRIED ,  TACKE THOMAS ,  BURMEISTER ROLAND ,  LANSINK ROTGERINK HERMANUS ,  PANSTER PETER

IPC: B01J21/08 ,  B01J23/52 ,  B01J23/66 ,  B01J35/10 ,  B01J37/00 ,  C01B33/12 ,  C04B35/14 ,  C04B35/634 ,  C04B35/636 ,  C07B61/00 ,  C07C29/04 ,  C07C31/08 ,  C07C31/10 ,  C07C67/035 ,  C07C67/04 ,  C07C69/15 ,  C09C1/30 ,  B01J32/00 ,  C07C31/02 ,  C07C29/05 ,  C07C67/055 ,  C07C41/06 ,  C07C43/06

Abstract: Compacts based on pyrogenically-produced silicon dioxide and having the following physical and chemical characteristics: Outer diameter 0.8 - 20 mm BET surface area 30 - 400 m2/g Pore volume 0.5 - 1.3 ml/g Breaking strength 10 to 250 N Composition > 99.8 wt.% SiO2 Other constituents

公开(公告)号：ZA938865B

公开(公告)日：1994-08-02

申请号：ZA938865

申请日：1993-11-26

Applicant: DEGUSSA

Inventor： BURMEISTER ROLAND ,  DELLER KLAUS ,  DESPEYROUX BERTRAND

IPC: B01J37/02 ,  B01J

Abstract: The invention relates to a process for the uniform and reproducible shell impregnation of fixed-bed catalyst supports present as bulk material by application of impregnation solutions, divided into droplets, of catalytically active components to the catalyst supports circulated in a tank. By appropriate choice of the spray parameters, in particular of the drop-size spectrum, the amount of solvent and the amount of impregnation solution sprayed per tank revolution, the catalyst supports can be furnished with outstandingly uniform shells.

公开(公告)号：CA2110138A1

公开(公告)日：1994-05-28

申请号：CA2110138

申请日：1993-11-26

Applicant: DEGUSSA

Inventor： BURMEISTER ROLAND ,  DELLER KLAUS ,  DESPEYROUX BERTRAND

IPC: B01J37/02 ,  B05B17/04 ,  B05D1/12

Abstract: The subject of the invention is a process for uniform and reproducible impregnation of fixed bed catalyst supports in the form of loose particles with a desired shell volume, by applying atomized impregnating solutions of precursors of the catalytically active components onto the heap of catalyst supports circulated in a tank. By suitable selection of the spraying parameters, in particular the droplet spectrum, the quantity of solvent and the quantity of impregnating solution sprayed per rotation of the tank, the catalyst supports may be provided with shells with an excellent degree of uniformity.

公开(公告)号：CA2205416C

公开(公告)日：2001-01-16

申请号：CA2205416

申请日：1997-05-15

Applicant: DEGUSSA

Inventor： PANSTER PETER ,  BURMEISTER ROLAND ,  KRAUSE HELMFRIED ,  LANSINK ROTGERINK HERMANUS ,  TACKE THOMAS

IPC: B01J21/08 ,  B01J23/52 ,  B01J23/66 ,  B01J35/10 ,  B01J37/00 ,  C01B33/12 ,  C04B35/14 ,  C04B35/634 ,  C04B35/636 ,  C07B61/00 ,  C07C29/04 ,  C07C31/08 ,  C07C31/10 ,  C07C67/035 ,  C07C67/04 ,  C07C69/15 ,  C09C1/30 ,  B01J32/00 ,  C07C31/02 ,  C07C29/05 ,  C07C67/055 ,  C07C41/06 ,  C07C43/06

Abstract: Compacts based on pyrogenically-produced silicon dioxide and having the following physical and chemical characteristics: Outer diameter 0.8 - 20 mm BET surface area 30 - 400 m2/g Pore volume 0.5 - 1.3 ml/g Breaking strength 10 to 250 N Composition > 99.8 wt.% SiO2 Other constituents

公开(公告)号：DE19947959A1

公开(公告)日：2000-08-10

申请号：DE19947959

申请日：1999-10-06

Applicant: DEGUSSA

Inventor： KRAUSE HELMFRIED ,  LANSINK ROTGERINK HERMANUS G J ,  TACKE THOMAS ,  BURMEISTER ROLAND

IPC: B01J21/08 ,  B01J21/12 ,  B01J35/02 ,  B01J37/00 ,  C04B35/14 ,  C04B35/18

Abstract: Molded body is based on silicon dioxide and/or silicon dioxide-aluminum oxide mixed oxide. The carrier geometry is characterized by a hollow cylinder configuration with facette corners. An Independent claim is also included for a process for the production of the molded body comprising homogenizing pyrogenically manufactured silicon dioxide and/or silicon dioxide-aluminum oxide mixed oxide with methylhydroxyethylcellulose, wax, magnesium stearate, polyethylene glycol and/or urea with addition of water, drying at 80-150 deg C, optionally crushing to a powder, pressing to hollow cylinders with facette corners and tempering at 400-1200 deg C for 0.5-8 hours.