Process for the production of slugs of pyrogenically produced oxides

US4482642A · kind A · utility

Assignee

• Degussa AG · DE

Inventors

• Manfred Ettlinger · Karlstein, DE
• Horst Ferch
• Detlev Koth · Bocholt, DE
• Edgar Simon · Alzenau, DE

Key dates

• Filing date: Aug 9, 1982
• Grant date: Nov 13, 1984
• Expiry date: Aug 9, 2002

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C01P2006/14
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

Pressed objects (slugs) of pyrogenically produced oxides such as SiO.sub.2, Al.sub.2 O.sub.3 and TiO.sub.2 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.