Method of doping aqueous solutions with acrolein in biocidally effective concentration

US5183944A · kind A · utility

Assignee

• Degussa AG · DE

Inventors

• Peter Werle · Gelnhausen, DE
• Martin Trageser · Gelnhausen, DE
• Hermann Piana · White Plains, US

Key dates

• Filing date: Nov 26, 1991
• Grant date: Feb 2, 1993
• Expiry date: Nov 26, 2011

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C45/515
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Aqueous solutions can be doped in a simple, safe and economic manner with acrolein in biocidally effective concentration by converting acrolein acetals in aqueous phase in the presence of a strongly acidic deacetalation catalyst into acrolein, cleaving the alcohol component, constantly removing the formed acrolein from the decetalation mixture and transferring it by means of an inert gas stream or a liquid jet pump with the aqueous solution to be doped as jet fluid into the aqueous solution to be doped.