公开(公告)号：US20180370798A1

公开(公告)日：2018-12-27

申请号：US16024078

申请日：2018-06-29

Applicant: Solvay SA

Inventor： Juan-Teva Carlier ,  Pierre Dournel ,  Henk Venbrux ,  Hooghe Lieven

IPC: C01B15/013 ,  C07D303/04

Abstract: A process includes preparing a crude aqueous hydrogen peroxide solution by auto-oxidation of at least one alkylanthraquinone in a working solution that includes at least one organic solvent and the at least one alkylanthraquinone; and washing the crude aqueous hydrogen peroxide solution with a mixture of at least one organic solvent and an organophosphorous chelating agent to create a purified aqueous hydrogen peroxide solution having less than 100 ppb Cr; wherein the organic solvent used for the washing is not part of the working solution and is not recycled into it.

公开(公告)号：US10099924B2

公开(公告)日：2018-10-16

申请号：US15026754

申请日：2014-10-02

Applicant: Solvay SA

Inventor： Juan-Teva Carlier ,  Pierre Dournel ,  Henk Venbrux ,  Hooghe Lieven

IPC: C07D301/12 ,  C01B15/013 ,  C07D303/04

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, and wherein an organophosphorus chelating agent is added to the organic solvent.

公开(公告)号：US10647576B2

公开(公告)日：2020-05-12

申请号：US16024078

申请日：2018-06-29

Applicant: Solvay SA

Inventor： Juan-Teva Carlier ,  Pierre Dournel ,  Henk Venbrux ,  Hooghe Lieven

IPC: C07D301/12 ,  C01B15/013 ,  C07D303/04

Abstract: A process includes preparing a crude aqueous hydrogen peroxide solution by auto-oxidation of at least one alkylanthraquinone in a working solution that includes at least one organic solvent and the at least one alkylanthraquinone; and washing the crude aqueous hydrogen peroxide solution with a mixture of at least one organic solvent and an organophosphorous chelating agent to create a purified aqueous hydrogen peroxide solution having less than 100 ppb Cr; wherein the organic solvent used for the washing is not part of the working solution and is not recycled into it.