Boehmitic aluminas, and high-temperature stabile and highly porous aluminum oxides in a pure phase which are obtained therefrom

US6773690B1 · kind B1 · utility

Assignee

• Sasol Germany GmbH · DE

Inventors

• Klaus Noweck · Brunsbüttel, DE
• Jurgen Schimanski · Brunsbüttel, DE
• Jens Juhl · Itzehoe, DE
• Frank Michael Bohnen · Brunsbüttel, DE
• Reiner Glockler · Wasserburg am Inn, DE
• Arnold Meyer · Marne, DE

Key dates

• Filing date: Jun 9, 2000
• Grant date: Aug 10, 2004
• Expiry date: Jun 9, 2020

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/2982
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

This invention relates to crystalline boehmitic aluminas the crystallites of which exhibit unusual dimensional differences in the space directions 020 and 120. This invention further relates to a method for preparing such aluminas and the follow-up products obtained therefrom by calcination.