The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 09, 1978
Filed:
Apr. 28, 1976
Applicant:
Inventors:
Gunter Prescher, Hanau, DT;
Otto Weiberg, Neu-Isenburg, DT;
Helmut Waldmann, Leverkusen, DT;
Hermann Seifert, Cologne, DT;
Assignees:
Deutsche Gold- und Silber-Scheideanstalt vormals Roessler, Frankfurt am Main, DT;
Bayer Aktiengesellschaft, Leverkusen, DT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
2605 / ;
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.