公开(公告)号：NO20075127A

公开(公告)日：2007-10-09

申请号：NO20075127

申请日：2007-10-09

Applicant: DEGUSSA NOVARA TECHNOLOGY SPA

Inventor： COSTA FULVIO ,  BOARA GIULIO ,  RUECKEMANN ANDREAS

IPC: C03B19/12 ,  C01B33/12 ,  C03B20/00 ,  C03C1/00 ,  C03C3/06

CPC classification number: C03B19/12 ,  C03B2201/03 ,  C03C1/006 ,  C03C3/06 ,  C03C2201/02 ,  C03C2203/22 ,  C03C2203/26 ,  C03C2203/52

公开(公告)号：NO20075127L

公开(公告)日：2007-10-09

申请号：NO20075127

申请日：2007-10-09

Applicant: DEGUSSA NOVARA TECHNOLOGY SPA

Inventor： COSTA FULVIO ,  BOARA GIULIO ,  RUECKEMANN ANDREAS

IPC: C03B19/12 ,  C01B33/12 ,  C03B20/00 ,  C03C1/00 ,  C03C3/06

Abstract: Process for the production of monoliths by means of the sol-gel process, comprising the following steps: a. hydrolysis of an alkoxide in aqueous solution to form a hydrolysate and optionally evaporation to optimum concentration of the same, b. addition of an oxide prepared by the pyrogenic route, c. mixing of the hydrolysate of the alkoxide with the oxide prepared by the pyrogenic route to form a colloidal sol, d. optional removal of coarse contents from the colloidal sol, e. gelling of the colloidal sol in a mould, f. optional replacement of the water contained in the resulting aerogel by an organic solvent, g. drying of the aerogel, h. heat treatment of the dried aerogel, the coarse content being removed from the colloidal sol.