Process for the preparation of perpropionic acid solutions

US4088679A · kind A · utility

Assignees

• Deutsche Gold- und Silber-Scheideanstalt Vormals Roessler
• BAYER HEALTHCARE LLC · DE

Inventors

• Gunter Prescher · Hanau, DE
• Otto Weiberg
• Helmut Waldmann · Leverkusen, DE
• Hermann Seifert · Bensberg, DE

Key dates

• Filing date: Apr 28, 1976
• Grant date: May 9, 1978
• Expiry date: Apr 28, 1996

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C407/00
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

In the production of perpropionic acid by reaction of hydrogen peroxide and propionic acid in an aqueous medium and in the presence of an acid catalyst, e.g. sulfuric acid, to produce the peracid and water, the danger of explosion is reduced by employing a molar ratio of hydrogen peroxide to propionic acid of more than 3.5:1, a temperature of up to 60.degree. C., and an initial hydrogen peroxide:water ratio of up to 0.8, and a catalyst concentration of 10-40% by weight.