Method of producing cyanuric chloride

US6838070B1 · kind B1 · utility

Assignee

• Degussa AG · DE

Inventors

• Walter Boerner · Alzenau, DE
• Ralph Marquardt · Schreiber, CA
• Stephanie Schauhoff · Frankfurt, DE
• Christine Schick · Merrimack, US
• Rudolf Vanheertum · Alzenau, DE

Key dates

• Filing date: Mar 8, 2000
• Grant date: Jan 4, 2005
• Expiry date: Mar 8, 2020

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D251/28
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to a method of producing cyanuric chloride by trimerizing chlorocyan at a temperature of at least 250° C. on washed activated carbon as the catalyst. The service life of the catalyst can be improved by using an activated coal with an effective pore volume V eff of equal or greater 0.17 ml/g, with V eff being the result of pores with a pore diameter ranging from 0.5 to 7 nm.