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1. (WO2017017390) CRYSTALLINE MACRO- AND MESOPOROUS TITANIUM DIOXIDE AND METHOD FOR OBTAINING SAME

Pub. No.:    WO/2017/017390    International Application No.:    PCT/FR2016/051987
Publication Date: Fri Feb 03 00:59:59 CET 2017 International Filing Date: Sat Jul 30 01:59:59 CEST 2016
IPC: B01J 35/00
C01G 23/053
H01G 9/20
C01G 23/08
Applicants: TOTAL SA
ECOLE NATIONALE SUPERIEURE DE CHIMIE DE MONTPELLIER
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE - CNRS -
Inventors: BOSCARO, Paolo
HULEA, Vasile
FAJULA, François
GALARNEAU, Anne
LUCK, Francis
Title: CRYSTALLINE MACRO- AND MESOPOROUS TITANIUM DIOXIDE AND METHOD FOR OBTAINING SAME
Abstract:
The present invention concerns a method for preparing crystalline macro- and mesoporous titanium dioxide (TiO2), in particular comprising the steps of preparing an acidified mixture comprising a separator, the mixture being acidified to at least 25% by mass in acid; - adding the acidified mixture comprising a separator and a source of nitrogen to a source of titanium, in two stages; - obtaining a titanium dioxide gel from the nitrogen-doped titanium solution; - washing the titanium dioxide gel with an alcohol; - obtaining a crystalline macro- and mesoporous titanium dioxide from the washed titanium dioxide gel. The invention also concerns a crystalline macro- and mesoporous titanium dioxide that can be obtained by the above method.