Process for the continuous preparation of dialkylperoxydicarbonates

US4370276A · kind A · utility

Assignee

• Peroxid-Chemie GmbH · DE

Inventors

• Hans Appel · Penzberg, DE
• Gottfried Brossmann · Munich, DE

Key dates

• Filing date: Sep 16, 1981
• Grant date: Jan 25, 1983
• Expiry date: Sep 16, 2001

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C407/003
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The present invention provides a process for the continuous production of dialkylperoxydicarbonates of the general formula: ##STR1## in which R stands for the same or different, straight-chained, cyclic or branched alkyl radicals containing 6 to 18 carbon atoms, by the continuous reaction of a chloroformic acid ester of the general formula: ##STR2## wherein R has the above-given meanings, in an aqueous medium with hydrogen peroxide and an alkali metal hydroxide at a temperature of from -10.degree. C. to +50.degree. C. in at least two reaction zones connected in series and continuous isolation of the dialkylperoxydicarbonate formed from the solvent-free reaction mixture with the use of a centrifuge, wherein the reaction is carried out in the presence of a surfactant and the dialkylperoxydicarbonate formed is separated in molten form from the alkaline reaction mixture heated to or just above the melting temperature of the dialkylperoxydicarbonate.