Process for the production of carbon nanotubes in a fluidized bed

US9050572B2 · kind B2 · utility

Assignee

• Bayer MaterialScience AG · DE

Inventors

• Sigurd Buchholz
• Maziar Kakhi · Potomac, US
• Volker Michele · Cologne, DE
• Leslaw Mleczko · Bochum, DE
• Christian Münnich · Leverkusen, DE
• Reiner Rudolf · Leverkusen, DE
• Aurel Wolf · Wülfrath, DE

Key dates

• Filing date: Apr 13, 2007
• Grant date: Jun 9, 2015
• Expiry date: Mar 10, 2031

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C01B2202/36
• WIPO field: Micro-structural and nano-technology
• WIPO sector: Chemistry

Abstract

The present invention relates to a process for the production of carbon nanotubes by decomposition of hydrocarbons on a heterogeneous catalyst in a fluidized bed reactor, wherein the reactor can be operated batchwise or continuously, and in the case of continuous operation discharge can take place with sifting or without sifting.