Process for manufacturing an aqueous hydrogen peroxide solution

US6224845A · kind A · utility

Assignee

• SOLVAY SA · BE

Inventors

• Pascal Pennetreau · Rixensart, BE
• Alain Vandenbussche · Brussels, BE

Key dates

• Filing date: Jun 17, 1999
• Grant date: May 1, 2001
• Expiry date: Jun 17, 2019

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C01B15/013
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

Process for manufacturing a purified aqueous hydrogen peroxide solution, in which a crude aqueous hydrogen peroxide solution is subjected to a washing operation with at least one organic solvent which has been subjected to a purification treatment prior to the washing operation. Aqueous hydrogen peroxide solution with a TOC, defined according to ISO standard 8245, of less than or equal to 72 mg/l.