Method for the energy-efficient production of sodium and potassium alcoholates

US11634372B2 · kind B2 · utility

Assignee

• Evonik Functional Solutions GmbH · DE

Inventors

• Dirk Roettger · Recklinghausen, DE
• Sebastian Reimann · Wesseling, DE
• Manfred Neumann · Marl, DE
• Moritz Schröder · Kohlenbissen, DE
• Philip Zitzewitz · Haltern am See, DE
• Niklas Paul · Marl, DE
• Armin Matthias Rix · Marl, DE

Key dates

• Filing date: Nov 30, 2020
• Grant date: Apr 25, 2023
• Expiry date: Nov 30, 2040

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P20/10
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A method can be used for producing alkali metal alcoholates in counter flow by reactive rectification. The alkali metal is selected from sodium and potassium. In a first part of the method, the alcohol is converted in counter flow with the respective alkali metal hydroxide. In a second part of the method, the mixture of alcohol and water obtained is separated in a rectification column, and the alcoholic vapour arising is condensed, as a result of which the temperature thereof increases. The energy dissipated during cooling of the condensed vapour is then used in the first part of the method. This permits an energy-efficient production of the alkali metal alcoholates concerned.