Verfahren zur Herstellung von Monochloressigsäure aus Glykolsäure

Details

Veröffentlichungs-Nr.

EP4049992

Aktenzeichen

EP21158864

Anmeldetag

24. Februar 2021

Veröffentlichung

9. April 2025

Erteilung

9. April 2025

Rechtsraum

EP

IPC

C07C51/363C07C53/16

Abstract

The disclosure is directed to a process for producing monochloroacetic acid from glycolic acid comprising contacting a liquid medium comprising glycolic acid and water with a hydrogen chloride-containing gas stream, resulting in the formation of a liquid medium into which hydrogen chloride has been absorbed, and reacting the glycolic acid with the absorbed hydrogen chloride at a temperature of from about 120 °C to about 180 °C and at an absolute pressure of from about 0.5 MPa to about 2 MPa, wherein the hydrogen chloride-containing gas stream is provided during at least part of the absorption step and at least part of the reaction step in a continuous manner or intermittently in at least 2 portions.

Anmelder

Firmen

Nouryon Chemicals International B.V.
Nouryon Chemicals BV

Land

🇳🇱 Niederlande

Fachgebiete