公开(公告)号：DE19722737A1

公开(公告)日：1998-12-03

申请号：DE19722737

申请日：1997-05-30

Applicant: HOECHST AG

Inventor： FORBERT RAINALD DR ,  SCHWERTFEGER FRITZ DR ,  HARTEL JOHANNES DR

IPC: B01J2/04 ,  B01J13/00 ,  C01B33/152 ,  C01B33/16

Abstract: The invention relates to a method for producing substantially globular lyogels, wherein the constituents which make up the gel are mixed, whereupon lyosol is introduced into a medium which dissolves in said lyosol in a noticeable manner in order to form said gel. The present invention also relates to a method for producing substantially globular aerogels, wherein the lyogels produced according to said method are converted into an aerogel.

公开(公告)号：DE19756633A1

公开(公告)日：1999-06-24

申请号：DE19756633

申请日：1997-12-19

Applicant: HOECHST AG

Inventor： HARTEL JOHANNES ,  FORBERT RAINALD DR

IPC: B01J13/00 ,  C01B33/158 ,  F26B3/06

Abstract: The lyogel particles are arranged in a packed bed and a dry gas passed through from top to bottom. The gas is passed into the bed from above, at an inlet temperature of 100-200 deg C. The blower stream velocity is between 1 and 40 cm/s. The packed bed has a thickness of 20 to 100 cm and rests on a device acting as an outlet from the packed bed which allows the gas to pass but not the Lyogel particles. The exiting gas is recirculated in a 1st phase, fresh gas being used in a 2nd phase drying.

公开(公告)号：DE19722738A1

公开(公告)日：1998-12-03

申请号：DE19722738

申请日：1997-05-30

Applicant: HOECHST AG

Inventor： FORBERT RAINALD DR ,  SCHWERTFEGER FRITZ DR ,  HARTEL JOHANNES DR

IPC: B01J2/04 ,  C01B33/152 ,  C01B33/158 ,  C01B33/16 ,  B01J13/00

Abstract: The invention relates to a method for producing substantially globular lyogels, wherein the constituents which make up the gel are mixed, whereupon lyosol is introduced into an agitated medium which does not dissolve in said lyosol in a noticeable manner in order to form said gel. The present invention also relates to a method for producing substantially globular aerogels, wherein the lyogels produced according to said method are converted into an aerogel.

公开(公告)号：DE19510156A1

公开(公告)日：1996-09-26

申请号：DE19510156

申请日：1995-03-21

Applicant: HOECHST AG

Inventor： FORBERT RAINALD DR ,  RITTNER SIEGBERT DR ,  HERMANN KURT ,  EBMEYER FRANK DR

IPC: C07C51/43 ,  C07C59/06