Title of Invention

AN AQUEOUS HYDROGEN PEROXIDE SOLUTION AND A PROCESS FOR PREPARING THE SAME

Abstract The present invention refers to an aqueous hydrogen peroxide solution comprising: i) less than 50 wppm alkali metals, alkaline earth metals or combinations thereof in total, irrespective whether the alkali or alkaline earth metals are present in cationic or complex form; ii) less than 50 wppm of amines having a pkB of less than 4.5 or the corresponding protonated compounds in total; and iii) at least 100 wppm anions or compounds that can dissociate to form anions in total, whereby the wppm are based on the weight of hydrogen peroxide and the concentration of hydrogen peroxide is more than 50 % by weight based on the total weight of the hydrogen peroxide solution, a process for preparation of said hydrogen peroxide solution and the use of said solution in a process for epoxidation of olefins.
Full Text

Documents:

526-KOLNP-2005-CORRESPONDENCE.pdf

526-kolnp-2005-form 15.pdf

526-KOLNP-2005-FORM 27.pdf

526-KOLNP-2005-FORM-27.pdf

526-kolnp-2005-granted-abstract.pdf

526-kolnp-2005-granted-claims.pdf

526-kolnp-2005-granted-correspondence.pdf

526-kolnp-2005-granted-description (complete).pdf

526-kolnp-2005-granted-examination report.pdf

526-kolnp-2005-granted-form 1.pdf

526-kolnp-2005-granted-form 18.pdf

526-kolnp-2005-granted-form 2.pdf

526-kolnp-2005-granted-form 3.pdf

526-kolnp-2005-granted-form 5.pdf

526-kolnp-2005-granted-gpa.pdf

526-kolnp-2005-granted-letter patent.pdf

526-kolnp-2005-granted-reply to examination report.pdf

526-kolnp-2005-granted-specification.pdf

526-KOLNP-2005-PA.pdf


Patent Number 221020
Indian Patent Application Number 526/KOLNP/2005
PG Journal Number 24/2008
Publication Date 13-Jun-2008
Grant Date 11-Jun-2008
Date of Filing 30-Mar-2005
Name of Patentee DEGUSSA AG
Applicant Address BENNIGSENPLATZ 1, DE-40474 DUSSELDORF
Inventors:
# Inventor's Name Inventor's Address
1 DR. CLAUDIA BRASSE ELSA-BRANDSTROM-STRASSE 5D, DE 63452 HANAU
2 DR. JURGEN GLENNEBERG BIEBERER STRASSE 37, DE 63065 OFFENBACH,
3 DR. THOMAS HAAS LERSNERSTRASSE 30A, DE-60322 FRANKFURT
4 DR. GUIDO STOCHNIOL ST. INGBERT-STRASSE 1A, DE-45721 HALTERN
5 WOLFGANG WOLL BACKESWEG 28A, DE 63477 MAINTAL
PCT International Classification Number C01B 15/023
PCT International Application Number PCT/EP03/010558
PCT International Filing date 2003-09-23
PCT Conventions:
# PCT Application Number Date of Convention Priority Country
1 02021967.1 2002-09-30 EUROPEAN UNION