公开(公告)号：NO315599B1

公开(公告)日：2003-09-29

申请号：NO960820

申请日：1996-02-28

Applicant: BASF AG

Inventor： ZIEGLER BERND ,  MRONGA NORBERT ,  TEICH FRIEDHELM ,  HERRMANN GUENTER

IPC: B01J13/00 ,  B01J21/08 ,  C01B33/158 ,  C01B33/16 ,  C04B30/00 ,  C08K3/00 ,  C08K3/36 ,  C08K3/40 ,  C08L21/00

Abstract: PCT No. PCT/EP94/02822 Sec. 371 Date Feb. 29, 1996 Sec. 102(e) Date Feb. 29, 1996 PCT Filed Aug. 25, 1994 PCT Pub. No. WO95/06617 PCT Pub. Date Mar. 9, 1995Hydrophobic silica aerogels obtainable by reacting a waterglass solution with an acid at a pH of from 7.5 to 11, substantially removing ionic constituents from the resulting silica hydrogels by washing with water or dilute aqueous solutions of inorganic bases, while the pH of the hydrogels is kept in the range from 7.5 to 11, displacing the aqueous phase contained in the hydrogel by an alcohol, and subsequent supercritical drying of the resulting alcogels.

公开(公告)号：DE59405045D1

公开(公告)日：1998-02-19

申请号：DE59405045

申请日：1994-08-25

Applicant: BASF AG

Inventor： ZIEGLER BERND ,  MRONGA NORBERT ,  TEICH FRIEDHELM ,  HERRMANN GUENTER

IPC: B01J13/00 ,  B01J21/08 ,  C01B33/158 ,  C01B33/16 ,  C04B30/00 ,  C08K3/00 ,  C08K3/36 ,  C08K3/40 ,  C08L21/00

Abstract: PCT No. PCT/EP94/02822 Sec. 371 Date Feb. 29, 1996 Sec. 102(e) Date Feb. 29, 1996 PCT Filed Aug. 25, 1994 PCT Pub. No. WO95/06617 PCT Pub. Date Mar. 9, 1995Hydrophobic silica aerogels obtainable by reacting a waterglass solution with an acid at a pH of from 7.5 to 11, substantially removing ionic constituents from the resulting silica hydrogels by washing with water or dilute aqueous solutions of inorganic bases, while the pH of the hydrogels is kept in the range from 7.5 to 11, displacing the aqueous phase contained in the hydrogel by an alcohol, and subsequent supercritical drying of the resulting alcogels.

公开(公告)号：NO960820A

公开(公告)日：1996-02-28

申请号：NO960820

申请日：1996-02-28

Applicant: BASF AG

Inventor： ZIEGLER BERND ,  MRONGA NORBERT ,  TEICH FRIEDHELM ,  HERRMANN GUNTER

IPC: B01J13/00 ,  B01J21/08 ,  C01B33/158 ,  C01B33/16 ,  C04B30/00 ,  C08K3/00 ,  C08K3/36 ,  C08K3/40 ,  C08L21/00 ,  C01B

CPC classification number: C04B30/00 ,  B01J21/08 ,  C01B33/1585 ,  C08K3/36 ,  C04B14/06 ,  C08L21/00

公开(公告)号：DE59103866D1

公开(公告)日：1995-01-26

申请号：DE59103866

申请日：1991-07-18

Applicant: BASF AG

Inventor： LAMM GUNTHER ,  TEICH FRIEDHELM

IPC: C07C225/16 ,  C07C225/22 ,  C07C309/52

Abstract: Aminobenzophenones have the formula where the ring A may be benzofused, X1 is hydrogen or hydroxysulfonyl, X2 is hydrogen, hydroxysulfonyl, hydroxysulfonylphenyl, hydroxysulfonylbenzyl or hydroxysulfonylphenylethyl, R1, R2 and R3 are each independently of the others hydrogen, halogen, C1-C12-alkyl, cyclohexyl or C1-C4-alkoxy, or one of them may also be the radical of the formula where L is a chemical bond, C1-C4-alkylene or -O-CH2- and Y1, Y2 and Y3 are each independently of the others hydrogen, halogen, C1-C12-alkyl or C1-C4-alkoxy and R4, X1, X2 and the ring A are each as defined above, and R4 is hydrogen or chlorine, with the proviso that X1 and X2 are not both hydrogen, their intermediates having the formula where L is as defined above.

公开(公告)号：DE59909648D1

公开(公告)日：2004-07-08

申请号：DE59909648

申请日：1999-03-11

Applicant: BASF AG

Inventor： TEICH FRIEDHELM ,  SCHELLING HEINER ,  KOESTER HERBERT ,  KRATZER HORST ,  REICHERT WOLFGANG ,  GALL MARTIN ,  ZIEGLER BERND

IPC: F26B21/10 ,  B01J3/00 ,  C01B33/00 ,  C01B33/12 ,  F26B7/00 ,  F26B21/14

Abstract: In a process for drying microporous, fluid-containing particles, the heat required for increasing the temperature is supplied by convection by reducing the interfacial tension of the fluid, preferably to 0 to 1/10, in particular to 0 to 1/20, of the interfacial tension of the fluid at room temperature, by appropriately increasing the temperature at from close to the critical pressure to supercritical pressure of the fluid. Furthermore, microporous, three-dimensionally networked particles are prepared by a process in which the drying process is used. In addition, an apparatus is used for carrying out the drying process, the apparatus comprising a pressure container having an inner container and pressure-withstanding outer container and suitable measuring and control apparatuses and pump apparatuses and heat exchangers, the inner container being provided for holding the particles to be dried and a gap being provided between the inner container and the outer container.

公开(公告)号：ES2201690T3

公开(公告)日：2004-03-16

申请号：ES99913251

申请日：1999-03-11

Applicant: BASF AG

Inventor： TEICH FRIEDHELM ,  SCHELLING HEINER ,  KOSTER HERBERT ,  KRATZER HORST ,  REICHERT WOLFGANG ,  GALL MARTIN

IPC: B01D12/00 ,  B01J13/00 ,  C01B33/158 ,  F26B7/00 ,  F26B17/14 ,  F26B21/14

Abstract: In a process for drying microporous, fluid-containing particles, the fluid-containing particles to be dried are fed as a moving bed countercurrently to a drying fluid, the interfacial tension of the fluid being reduced in comparison with the interfacial tension of the fluid at room temperature, at near-critical to supercritical pressure of the fluid, preferably to a value in the range from 0 to 1/10, in particular from 0 to 1/20, of the interfacial tension at room temperature. Furthermore, microporous, three-dimensionally networked particles are prepared by a process comprising preparation of microporous particles containing pore liquid, exchange of the pore liquid in the particles for a fluid and drying of the fluid-containing particles, the exchange and drying being carried out in the moving bed by the countercurrent method.

公开(公告)号：DK1062014T3

公开(公告)日：2003-09-22

申请号：DK99913251

申请日：1999-03-11

Applicant: BASF AG

Inventor： TEICH FRIEDHELM ,  SCHELLING HEINER ,  KOESTER HERBERT ,  KRATZER HORST ,  REICHERT WOLFGANG ,  GALL MARTIN ,  ZIEGLER BERND

IPC: B01D12/00 ,  B01J13/00 ,  C01B33/158 ,  F26B7/00 ,  F26B17/14 ,  F26B21/14

Abstract: In a process for drying microporous, fluid-containing particles, the fluid-containing particles to be dried are fed as a moving bed countercurrently to a drying fluid, the interfacial tension of the fluid being reduced in comparison with the interfacial tension of the fluid at room temperature, at near-critical to supercritical pressure of the fluid, preferably to a value in the range from 0 to 1/10, in particular from 0 to 1/20, of the interfacial tension at room temperature. Furthermore, microporous, three-dimensionally networked particles are prepared by a process comprising preparation of microporous particles containing pore liquid, exchange of the pore liquid in the particles for a fluid and drying of the fluid-containing particles, the exchange and drying being carried out in the moving bed by the countercurrent method.

公开(公告)号：DE59905742D1

公开(公告)日：2003-07-03

申请号：DE59905742

申请日：1999-03-11

Applicant: BASF AG

Inventor： TEICH FRIEDHELM ,  SCHELLING HEINER ,  KOESTER HERBERT ,  KRATZER HORST ,  REICHERT WOLFGANG ,  GALL MARTIN ,  ZIEGLER BERND

IPC: B01D12/00 ,  B01J13/00 ,  C01B33/158 ,  F26B7/00 ,  F26B17/14 ,  F26B21/14

Abstract: In a process for drying microporous, fluid-containing particles, the fluid-containing particles to be dried are fed as a moving bed countercurrently to a drying fluid, the interfacial tension of the fluid being reduced in comparison with the interfacial tension of the fluid at room temperature, at near-critical to supercritical pressure of the fluid, preferably to a value in the range from 0 to 1/10, in particular from 0 to 1/20, of the interfacial tension at room temperature. Furthermore, microporous, three-dimensionally networked particles are prepared by a process comprising preparation of microporous particles containing pore liquid, exchange of the pore liquid in the particles for a fluid and drying of the fluid-containing particles, the exchange and drying being carried out in the moving bed by the countercurrent method.

公开(公告)号：ES2066285T3

公开(公告)日：1995-03-01

申请号：ES91112002

申请日：1991-07-18

Applicant: BASF AG

Inventor： LAMM GUNTHER ,  TEICH FRIEDHELM

IPC: C07C225/16 ,  C07C225/22 ,  C07C309/52

Abstract: Aminobenzophenones have the formula where the ring A may be benzofused, X1 is hydrogen or hydroxysulfonyl, X2 is hydrogen, hydroxysulfonyl, hydroxysulfonylphenyl, hydroxysulfonylbenzyl or hydroxysulfonylphenylethyl, R1, R2 and R3 are each independently of the others hydrogen, halogen, C1-C12-alkyl, cyclohexyl or C1-C4-alkoxy, or one of them may also be the radical of the formula where L is a chemical bond, C1-C4-alkylene or -O-CH2- and Y1, Y2 and Y3 are each independently of the others hydrogen, halogen, C1-C12-alkyl or C1-C4-alkoxy and R4, X1, X2 and the ring A are each as defined above, and R4 is hydrogen or chlorine, with the proviso that X1 and X2 are not both hydrogen, their intermediates having the formula where L is as defined above.

公开(公告)号：ES2222027T3

公开(公告)日：2005-01-16

申请号：ES99915573

申请日：1999-03-11

Applicant: BASF AG

Inventor： TEICH FRIEDHELM ,  SCHELLING HEINER ,  KOSTER HERBERT ,  KRATZER HORST ,  REICHERT WOLFGANG ,  GALL MARTIN

IPC: B01J3/00 ,  F26B21/10 ,  C01B33/00 ,  C01B33/12 ,  F26B7/00 ,  F26B21/14

Abstract: Procedimiento para el secado de partículas, que contienen fluido, microporosas, por reducción de la tensión interfacial del fluido, preferentemente de 0 hasta 1/10, particularmente de 0 hasta 1/20, la tensión interfacial presente a temperatura ambiente del fluido, de tal manera que se aumente correspondientemente la temperatura hasta una presión hipercrítica del fluido la temperatura, caracterizado porque se alimenta de forma convectiva el calor necesario para el aumento de la temperatura.