Process and apparatus for producing oxidic nanocrystals

US6702957B2 · kind B2 · utility

Assignee

• Patent-Treuhand-Gesellschaft fur elektrische Gluhlampen mbH · DE

Inventors

• Armin Konrad · Großaitingen, DE
• Torsten Fries · Stadtbergen, DE
• Alfred Gahn · Berlin, DE
• Franz Kummer · Munich, DE

Key dates

• Filing date: Nov 6, 2001
• Grant date: Mar 9, 2004
• Expiry date: Nov 6, 2021

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C01P2004/64
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The present invention relates to oxidic nanocrystals and a process and apparatus for producing oxidic nanocrystals from metalorganic compounds or volatile inorganic compounds. In particular, the process is suitable for oxidic or oxysulfidic nanocrystals, particularly based on the elements Y, Gd, Mg, Ca, Ba and Al. The nanocrystals preferably have a mean initial particle size of 1 to 20 nm.