公开(公告)号：ES2070348T3

公开(公告)日：1995-06-01

申请号：ES91101249

申请日：1991-01-31

Applicant: DEGUSSA

Inventor： BRAND REINHOLD DR ,  ENGLER BERND H DR ,  FOERSTER MARTIN DR ,  HARTMANN WERNER DR ,  KLEINSCHMIT PETER DR ,  KOBERSTEIN EDGAR DR ,  OHMER JOHANNES DR ,  SCHWARZ RUDOLF DR

IPC: B01J21/06 ,  B01J35/10 ,  B01J37/00 ,  B28B3/20 ,  C04B35/46

Abstract: Pressed titanium dioxide is produced by intensively mixing pyrogenically prepared titanium dioxide in the presence of deionised water with a humectant and/or a base and/or, if appropriate, a binder and/or, if appropriate, a forming aid and/or, if appropriate, a pore former, extruding the resulting mass at pressures of between 5 and 100 bar to give mouldings, drying the mouldings at temperatures between 50 and 120 DEG C and then calcining them for 1 to 5 hours in ambient air at temperatures from 400 to 700 DEG C.

公开(公告)号：CZ73299A3

公开(公告)日：2000-02-16

申请号：CZ73299

申请日：1999-03-03

Applicant: DEGUSSA

Inventor： FOERSTER MARTIN DR ,  DITTRICH EWALD ,  BIRTIGH GERHARD ,  LEIBOLD WALTER ,  MERGNER BERND ,  HOFFMANN MICHAEL DR ,  HASSELMANN WOLFGANG ,  SCHAFER ROBERT

IPC: B05B13/06 ,  B01J37/02

公开(公告)号：DK0598318T3

公开(公告)日：1999-11-29

申请号：DK93118198

申请日：1993-11-10

Applicant: DEGUSSA

Inventor： KLASEN CLAAS-JUERGEN DR ,  FOERSTER MARTIN DR ,  HOEFLER ANDREAS DR ,  BAUER KLAUS-PETER ,  RIEMENSCHNEIDER HERBERT DR ,  FRANTA OLIVER ,  GILG RAINER

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：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：DE59002517D1

公开(公告)日：1993-10-07

申请号：DE59002517

申请日：1990-03-16

Applicant: DEGUSSA

Inventor： DELLER KLAUS DR ,  FOERSTER MARTIN DR ,  KRAUSE HELMFRIED

IPC: C01B33/18 ,  B01J21/08 ,  B01J35/10 ,  B01J37/00 ,  C01B33/12 ,  C04B35/14 ,  C04B35/632 ,  C04B35/634 ,  C04B35/636 ,  C04B38/00

Abstract: Pressed bodies is based on pyrogenic silica having the following physical-chemical data:… External diameter: 2 to 15 mm… BET surface area: 50 to 400 m /g… Pore volume: 0.6 to 1.3 ml/g… Breaking strength: 50 to 150 N… Pore distribution: no pores of 99% by weight of SiO2… Attrition:

公开(公告)号：BR9101571A

公开(公告)日：1991-12-10

申请号：BR9101571

申请日：1991-04-18

Applicant: DEGUSSA

Inventor： BRAND REINHOLD DR ,  ENGLER BERND DR ,  FOERSTER MARTIN DR ,  HARTMANN WERNER DR ,  KLEINSCHMIT PETER DR ,  KOBERSTEIN EDGAR DR ,  OHMER JOHANNES DR ,  SCHWARZ RUDOLF DR

IPC: B01J21/06 ,  B01J35/10 ,  B01J37/00 ,  B28B3/20 ,  C04B35/46

Abstract: Pressed titanium dioxide is produced by intensively mixing pyrogenically prepared titanium dioxide in the presence of deionised water with a humectant and/or a base and/or, if appropriate, a binder and/or, if appropriate, a forming aid and/or, if appropriate, a pore former, extruding the resulting mass at pressures of between 5 and 100 bar to give mouldings, drying the mouldings at temperatures between 50 and 120 DEG C and then calcining them for 1 to 5 hours in ambient air at temperatures from 400 to 700 DEG C.

公开(公告)号：CZ295599A3

公开(公告)日：2000-09-13

申请号：CZ295599

申请日：1999-08-19

Applicant: DEGUSSA

Inventor： FOERSTER MARTIN DR ,  PIROTH JOSEF ,  SCHLACHTER ULRICH DR ,  DOMESLE RAINER DR ,  KRAMPE WILLI DR

IPC: B01J37/02 ,  F01N3/28

公开(公告)号：CZ9900732A3

公开(公告)日：2000-02-16

申请号：CZ73299

申请日：1999-03-03

Applicant: DEGUSSA

Inventor： FOERSTER MARTIN DR ,  DITTRICH EWALD ,  BIRTIGH GERHARD ,  LEIBOLD WALTER ,  MERGNER BERND ,  HOFFMANN MICHAEL DR ,  HASSELMANN WOLFGANG ,  SCHAFER ROBERT

IPC: B05B13/06 ,  B01J37/02

公开(公告)号：DE59105073D1

公开(公告)日：1995-05-11

申请号：DE59105073

申请日：1991-01-31

Applicant: DEGUSSA

Inventor： BRAND REINHOLD DR ,  ENGLER BERND H DR ,  FOERSTER MARTIN DR ,  HARTMANN WERNER DR ,  KLEINSCHMIT PETER DR ,  KOBERSTEIN EDGAR DR ,  OHMER JOHANNES DR ,  SCHWARZ RUDOLF DR

IPC: B01J21/06 ,  B01J35/10 ,  B01J37/00 ,  B28B3/20 ,  C04B35/46

Abstract: Pressed titanium dioxide is produced by intensively mixing pyrogenically prepared titanium dioxide in the presence of deionised water with a humectant and/or a base and/or, if appropriate, a binder and/or, if appropriate, a forming aid and/or, if appropriate, a pore former, extruding the resulting mass at pressures of between 5 and 100 bar to give mouldings, drying the mouldings at temperatures between 50 and 120 DEG C and then calcining them for 1 to 5 hours in ambient air at temperatures from 400 to 700 DEG C.

公开(公告)号：DK0452619T3

公开(公告)日：1995-05-01

申请号：DK91101249

申请日：1991-01-31

Applicant: DEGUSSA

Inventor： KLEINSCHMIT PETER DR ,  KOBERSTEIN EDGAR DR ,  SCHWARZ RUDOLF DR ,  BRAND REINHOLD DR ,  ENGLER BERND H DR ,  FOERSTER MARTIN DR ,  HARTMANN WERNER DR ,  OHMER JOHANNES DR

IPC: B01J21/06 ,  B01J35/10 ,  B01J37/00 ,  B28B3/20 ,  C04B35/46

Abstract: Pressed titanium dioxide is produced by intensively mixing pyrogenically prepared titanium dioxide in the presence of deionised water with a humectant and/or a base and/or, if appropriate, a binder and/or, if appropriate, a forming aid and/or, if appropriate, a pore former, extruding the resulting mass at pressures of between 5 and 100 bar to give mouldings, drying the mouldings at temperatures between 50 and 120 DEG C and then calcining them for 1 to 5 hours in ambient air at temperatures from 400 to 700 DEG C.