Process for preparing precipitated calcium carbonates

US6500400B1 · kind B1 · utility

Assignee

• Solvay Soda Deutschland GmbH · DE

Inventors

• Andreas Kinnen · Xanten, DE
• Helmut Dillenburg · Rheinberg, DE
• Kurt Schinninger · Salzburg, AT
• Christoph Nover · Rheinberg, DE

Key dates

• Filing date: Jan 3, 2000
• Grant date: Dec 31, 2002
• Expiry date: Jan 3, 2020

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P20/141
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A process comprising introducing CO2 into milk of lime, in which the milk of lime is first ground, and then the CO2 is introduced to precipitate the calcium carbonate.