Method for the continuous production of aqueous dialkali salt solutions of aromatic dihydroxy compounds

US3960968A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Hugo Vernaleken · Walsrode, DE
• Ludwig Bottenbruch · Krefeld, DE
• Gerhard Emmer
• Uwe Hucks · Alpen, DE

Key dates

• Filing date: Jun 27, 1974
• Grant date: Jun 1, 1976
• Expiry date: Jun 27, 1994

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C37/66
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

In a process for continuously producing solutions of dialkali or dialkaline earth metal salts of aromatic dihydroxy compounds, the aromatic dihydroxy compound is sprayed in the form of a melt onto a turbulent liquid film of a solution of an alkali or alkaline earth metal hydroxide. The alkali or alkaline metal hydroxide is preferably solved in water.