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：US20150191379A1

公开(公告)日：2015-07-09

申请号：US14414706

申请日：2013-07-16

Applicant: SOLVAY SA

Inventor： Pierre Dournel

IPC: C02F1/72 ,  C02F1/70 ,  C02F1/66

CPC classification number: C02F1/725 ,  B01J23/745 ,  B01J35/023 ,  B01J35/1019 ,  C01B15/013 ,  C02F1/66 ,  C02F1/70 ,  C02F1/705 ,  C02F1/722 ,  C02F3/00 ,  C02F2101/10 ,  C02F2305/02

Abstract: A process for removal of hydrogen peroxide from an aqueous solution which can be employed for the treatment of aqueous solutions such as industrial waste-water streams from hydrogen production plants, paper bleaching factories and semi-conductor manufacturing plants, wherein said process comprises contacting at a pH above 4, an aqueous solution containing hydrogen peroxide with a fixed bed of an iron oxide for catalytically decomposing the hydrogen peroxide.

Abstract translation: 一种从水溶液中除去过氧化氢的方法，其可用于处理水溶液，例如来自氢生产设备，纸张漂白工厂和半导体制造工厂的工业废水流，其中所述方法包括在 pH高于4，含有氧化铁固定床的过氧化氢水溶液，用于催化分解过氧化氢。

公开(公告)号：US09907305B2

公开(公告)日：2018-03-06

申请号：US15455504

申请日：2017-03-10

Applicant: SOLVAY SA

Inventor： Philippe Coel ,  Pierre Dournel ,  Pierre Miquel

IPC: A01N37/02 ,  A01N37/36 ,  A01N59/00

CPC classification number: A01N37/36 ,  A01N59/00

Abstract: A method for the production of a solution of peracetic acid (PAA) containing at most 23 wt % PAA according to which acetic anhydride optionally containing acetic acid (AA) is added in a controlled manner to a diluted solution of hydrogen peroxide, wherein the diluted solution of hydrogen peroxide (H2O2) has a concentration and is used in an amount such that it if the amount of water required to hydrate all of the added acetic anhydride is subtracted therefrom, it still contains in weight, at least 50% (preferably 54%) of water based on the total amount of water and hydrogen peroxide.

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：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.

公开(公告)号：US11993513B2

公开(公告)日：2024-05-28

申请号：US16981366

申请日：2019-03-19

Applicant: SOLVAY SA

Inventor： Juan-Teva Carlier ,  Pierre Dournel ,  Karol Lorent

IPC: C01B15/023

CPC classification number: C01B15/023

Abstract: Process for manufacturing an aqueous hydrogen peroxide solution comprising the following steps: —hydrogenating a working solution which comprises an alkylanthraquinone and/or tetrahydroalkylanthraquinone and a mixture of a non-polar organic solvent and a polar organic solvent wherein the concentration of non-polar organic solvent in said mixture is equal to or higher than 30 wt %; —oxidizing the hydrogenated working solution to produce hydrogen peroxide; and—isolating the hydrogen peroxide, wherein the polar organic solvent is a substituted cyclohexane carbonitrile.

公开(公告)号：US11225613B2

公开(公告)日：2022-01-18

申请号：US16610174

申请日：2017-05-08

Applicant: SOLVAY SA

Inventor： Wenjuan Zhou ,  Armin Liebens ,  Pierre Dournel ,  Andrew Willson

IPC: C10G27/10

Abstract: A process for removing sulfur compounds from a liquid composition immiscible with water, comprising at least partially oxidizing the sulfur compounds by contacting a liquid composition comprising at least one sulfur compound with an aqueous oxidizing solution comprising at least one oxidant in the presence of at least one polyoxometalate and amphiphilic solid particles.