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公开(公告)号:AT140653T
公开(公告)日:1996-08-15
申请号:AT94100782
申请日:1994-01-20
Applicant: DEGUSSA
Inventor: SEXTL GERHARD DR , BARTELT SABINE , WILMES KLAUS , REUTER ROLAND , SCHWARZ RUDOLF DR , WORCH FRIEDEL
IPC: B30B11/00
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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
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.
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公开(公告)号:AT97856T
公开(公告)日:1993-12-15
申请号:AT90125659
申请日:1990-12-28
Applicant: DEGUSSA
Inventor: SEXTL GERHARD DR , REUTER ROLAND , STRACK HANS DR , KLEINSCHMIT PETER DR , SCHWARZ RUDOLF DR
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公开(公告)号:DE3828669A1
公开(公告)日:1990-03-08
申请号:DE3828669
申请日:1988-08-24
Applicant: DEGUSSA
Inventor: SEXTL GERHARD DR , REUTER ROLAND , KLEINSCHMIT PETER DR , SCHWARZ RUDOLF DR , SPORYS ILONA
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公开(公告)号:DE3801270A1
公开(公告)日:1989-07-27
申请号:DE3801270
申请日:1988-01-19
Applicant: DEGUSSA
Inventor: LIU ANH THU DR , SCHWARZ RUDOLF DR , KLEINSCHMIT PETER DR
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公开(公告)号:AT16792T
公开(公告)日:1985-12-15
申请号:AT82102790
申请日:1982-04-02
Applicant: DEGUSSA
Inventor: KLEINSCHMIT PETER DR , SCHWARZ RUDOLF DR , DOMESLE RAIMER DR , SCHMIDT SABINE
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公开(公告)号:DE3060306D1
公开(公告)日:1982-06-03
申请号:DE3060306
申请日:1980-07-08
Applicant: DEGUSSA
Inventor: KLEINSCHMIT PETER DR , SCHWARZ RUDOLF DR
IPC: C01B13/18 , C01B13/22 , C01F7/00 , C01F7/06 , C01F7/30 , C01G1/02 , C04B14/30 , C04B30/00 , C04B35/10 , C04B43/00
Abstract: There is provided temperature stabilized pyrogenically produced aluminum oxide-mixed oxide having a BET surface area of 50 to 200 m2/g which contains 0.5 to 20 weight % silicon dioxide as a constituent thereof. Because of the silicon dioxide constituent the aluminum oxide does not change into the alpha -Al2O3 phase until 1350 DEG C. The temperature stabilized aluminum oxide-mixed oxide is suitable for the production of thermal insulation compositions.
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公开(公告)号:DE2931585A1
公开(公告)日:1981-02-12
申请号:DE2931585
申请日:1979-08-03
Applicant: DEGUSSA
Inventor: KLEINSCHMIT PETER DR , SCHWARZ RUDOLF DR
IPC: C01B13/18 , C01B13/22 , C01F7/00 , C01F7/06 , C01F7/30 , C01G1/02 , C04B14/30 , C04B30/00 , C04B35/10 , C01F7/02
Abstract: There is provided temperature stabilized pyrogenically produced aluminum oxide-mixed oxide having a BET surface area of 50 to 200 m2/g which contains 0.5 to 20 weight % silicon dioxide as a constituent thereof. Because of the silicon dioxide constituent the aluminum oxide does not change into the alpha -Al2O3 phase until 1350 DEG C. The temperature stabilized aluminum oxide-mixed oxide is suitable for the production of thermal insulation compositions.
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公开(公告)号:GR3020727T3
公开(公告)日:1996-11-30
申请号:GR960402092
申请日:1996-08-07
Applicant: DEGUSSA
Inventor: SEXTL GERHARD DR , BARTELT SABINE , WILMES KLAUS , REUTER ROLAND , SCHWARZ RUDOLF DR , WORCH FRIEDEL
IPC: B30B11/00
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