Aluminum silicate suspension

US6207721A · kind A · utility

Assignee

• Degussa-Huels AG · DE

Inventors

• Holger Glaum · Maintal, DE
• Jurgen Schubert · Dirmstein, DE

Key dates

• Filing date: May 10, 1999
• Grant date: Mar 27, 2001
• Expiry date: May 10, 2019

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C01B33/26
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

An aqueous aluminium silicate suspension having a content of aluminium silicate of at least 30 wt. % is prepared by liquefaction of the aluminium silicate filter cake or by dispersion of aluminium silicate powder in water with the addition of aluminium silicate powder, surfactant and aluminium sulfate. It can be employed in papermaking.