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公开(公告)号：DE3269128D1
公开(公告)日：1986-03-27
申请号：DE3269128
申请日：1982-04-22
Applicant: DEGUSSA
Inventor： ETTLINGER MANFRED DR , FERCH HORST DR , KOTH DETLEV DR , SIMON EDGAR
IPC: C04B35/63 , B01J2/22 , B01J2/30 , B01J21/00 , B01J21/06 , B01J21/08 , B01J32/00 , B01J35/04 , B01J37/00 , B28B3/02 , C01B13/14 , C04B38/00 , C09C3/04
Abstract: Pressed objects (slugs) of pyrogenically produced oxides such as SiO2, Al2O3 and TiO2 are produced using a silica sol and water. As molding assistants thereby there is employed a polyhydric alcohol, e.g. glycerine or sorbitol. The water can be added adsorbed on a pyrogenically produced hydrophobized silica. The pressed object obtained can be used inter alia as catalyst carrier.
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公开(公告)号：DE3583894D1
公开(公告)日：1991-10-02
申请号：DE3583894
申请日：1985-02-14
Applicant: DEGUSSA
Inventor： KARL ALFONS DR , WALTER ERWIN , KLEINSCHMIT PETER DR , GOTTSCHLICH HERMANN , KUTZ ROLAND DR , KOTH DETLEV DR
IPC: C01B31/08 , C01B31/12 , C01B32/336 , C01B31/10
Abstract: (1). New active C, (I), prepd. from lignite coke, is characterised by: (a) the prod. of the molasses index times the I2-index, divided by 1000, is equal to 350-1000 and/or (b) the prod. of the molasses index times the methylene blue titre, divided by 10, is equal to 500-2000. (2). (I) is prepd. by activating lignite coke with steam in a rotating cylinder. During activation, an aq. alkali- or alkaline earth carbonate and/or hydroxide soln. is sprayed with a lance into the rotating cylinder.
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公开(公告)号：DE3484884D1
公开(公告)日：1991-09-12
申请号：DE3484884
申请日：1984-04-14
Applicant: DEGUSSA
Inventor： KOTH DETLEV DR , SCHUTTE DIETER DR , SCHMID MANFRED
Abstract: Pyrogenic silica (I) with an alkaline or weakly acidic pH is new. (I) may be obtained by treating conventional pyrogenic silica, immediately after deacidification, with gaseous NH3 at 300-500 deg.C in the absence of atmospheric moisture.
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公开(公告)号：AT18015T
公开(公告)日：1986-03-15
申请号：AT82103404
申请日：1982-04-22
Applicant: DEGUSSA
Inventor： ETTLINGER MANFRED DR , FERCH HORST DR , KOTH DETLEV DR , SIMON EDGAR
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公开(公告)号：DE3418150A1
公开(公告)日：1985-11-21
申请号：DE3418150
申请日：1984-05-16
Applicant: DEGUSSA
Inventor： KARL ALFONS DR , WALTER ERWIN , KLEINSCHMIT PETER DR , GOTTSCHLICH HERMANN , KUTZ ROLAND DR , KOTH DETLEV DR
IPC: C01B31/08 , C01B31/12 , C01B32/336
Abstract: Activated carbon is produced from lignite coke. It is characterized by the product of the molasses number times the iodine number divided by 1000 being 350 to 1000 and/or the product of the molasses number times the methylene blue number divided by 10 being 500 to 1200. It is produced by adding aqueous alkali or alkaline earth carbonate solution and/or aqueous alkali or alkaline earth hydroxide solution by means of lance during the steam activation of lignite coke in a rotating tube.
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Patent Agency Ranking
公开(公告)号：DE3217751A1
公开(公告)日：1983-11-17
申请号：DE3217751
申请日：1982-05-12
Applicant: DEGUSSA
Inventor： ETTLINER MANFRED DR , FERCH HORT DR , KOTH DETLEV DR , SIMON EDGAR
IPC: B01J21/06 , C01G23/08 , C04B35/46 , C01G23/047
Abstract: Pressed pieces of pyrogenically produced titanium dioxide are produced using organic or inorganic compounds having an acid reaction. Since the addition of binder aids such as silica sol, kaolin and the like is avoided, pressed pieces having a titanium dioxide content of up to 99% by weight are obtained with an accessible pore volume of 45-55% of the volume of the pressed piece and a hardness of at least 16 kp, the pressed pieces being suitable for use as catalyst supports.
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公开(公告)号：DE3360084D1
公开(公告)日：1985-05-09
申请号：DE3360084
申请日：1983-01-05
Applicant: DEGUSSA
Inventor： KLEBE HANS DR , KOTH DETLEV DR , KERNER DIETER DR , SCHMID JOSEF , SCHMID MANFRED
Abstract: Pyrogenically produced silica after separation of the hydrogen halide is mixed with nitrogen and conveyed into a cyclone. After separation of the gases, which are returned into the cooling stretch of the production apparatus, the silica is first mixed with organohalosilane and nitrogen and subsequently with steam and nitrogen. Subsequently the hydrophobization reaction is carried out in known manner in a fluidized bed reactor. The reaction waste gases are returned into the cyclone.
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公开(公告)号：DE3320968A1
公开(公告)日：1984-12-13
申请号：DE3320968
申请日：1983-06-10
Applicant: DEGUSSA
Inventor： KOTH DETLEV DR , SCHUTTE DIETER DR , SCHMID MANFRED
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公开(公告)号：DE3211431A1
公开(公告)日：1983-09-29
申请号：DE3211431
申请日：1982-03-27
Applicant: DEGUSSA
Inventor： KLEBE HANS DR , KOTH DETLEV DR , KERNER DIETER DR , SCHMID JOSEF , SCHMID MANFRED
Abstract: Pyrogenically produced silica after separation of the hydrogen halide is mixed with nitrogen and conveyed into a cyclone. After separation of the gases, which are returned into the cooling stretch of the production apparatus, the silica is first mixed with organohalosilane and nitrogen and subsequently with steam and nitrogen. Subsequently the hydrophobization reaction is carried out in known manner in a fluidized bed reactor. The reaction waste gases are returned into the cyclone.
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公开(公告)号：DE3132674A1
公开(公告)日：1983-03-17
申请号：DE3132674
申请日：1981-08-19
Applicant: DEGUSSA
Inventor： ETTLINGER MANFRED DR , FERCH HORST DR , KOTH DETLEV DR , SIMON EDGAR
IPC: C04B35/63 , B01J2/22 , B01J2/30 , B01J21/00 , B01J21/06 , B01J21/08 , B01J32/00 , B01J35/04 , B01J37/00 , B28B3/02 , C01B13/14 , C04B38/00 , C09C3/04 , B01J2/00 , B01J35/02
Abstract: Pressed objects (slugs) of pyrogenically produced oxides such as SiO2, Al2O3 and TiO2 are produced using a silica sol and water. As molding assistants thereby there is employed a polyhydric alcohol, e.g. glycerine or sorbitol. The water can be added adsorbed on a pyrogenically produced hydrophobized silica. The pressed object obtained can be used inter alia as catalyst carrier.
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