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1. WO2011099013 - TITANIUM-DIOXIDE COMPOSITIONS

Publication Number WO/2011/099013
Publication Date 18.08.2011
International Application No. PCT/IL2011/000155
International Filing Date 14.02.2011
IPC
B01J 35/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
35Catalysts, in general, characterised by their form or physical properties
B01J 35/10 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
35Catalysts, in general, characterised by their form or physical properties
02Solids
10characterised by their surface properties or porosity
B01J 21/06 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
21Catalysts comprising the elements, oxides or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium or hafnium
06Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
CPC
B01J 21/063
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
21Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
06Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
063Titanium; Oxides or hydroxides thereof
B01J 35/0013
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
35Catalysts, in general, characterised by their form or physical properties
0013Colloids
B01J 35/0033
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
35Catalysts, in general, characterised by their form or physical properties
002Catalysts characterised by their physical properties
0033Electric or magnetic properties
B01J 35/004
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
35Catalysts, in general, characterised by their form or physical properties
002Catalysts characterised by their physical properties
004Photocatalysts
B01J 35/006
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
35Catalysts, in general, characterised by their form or physical properties
002Catalysts characterised by their physical properties
0046Physical properties of the active metal ingredient
006metal crystallite size
B01J 35/1019
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
35Catalysts, in general, characterised by their form or physical properties
02Solids
10characterised by their surface properties or porosity
1004Surface area
1019100-500 m2/g
Applicants
  • JOMA INTERNATIONAL AS [NO]/[NO] (AllExceptUS)
  • VITNER, Asher [IL]/[IL] (UsOnly)
  • EYAL, Aharon [IL]/[IL] (UsOnly)
  • BAIDOSSI, Mubeen [IL]/[IL] (UsOnly)
  • MUHALWES, Motasem [IL]/[IL] (UsOnly)
  • EYAL, Erez [IL]/[IL] (UsOnly)
Inventors
  • VITNER, Asher
  • EYAL, Aharon
  • BAIDOSSI, Mubeen
  • MUHALWES, Motasem
  • EYAL, Erez
Agents
  • WOLFF BREGMAN AND GOLLER
Priority Data
21118210.02.2011IL
61/304,49615.02.2010US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) TITANIUM-DIOXIDE COMPOSITIONS
(FR) COMPOSITIONS DE DIOXYDE DE TITANE
Abstract
(EN)
The present invention provides a titanium dioxide composition comprising nano- sized particles said particles being characterized by: (i) being comprised essentially of anatase; (ii) having a mean size, according to XRD, of Lx, a mean size, according to SEM, of Ls, and a mean size distribution in suspension of Ln, wherein the ratio (Rs) of Ls/Lx is in the range of between 1.2 and 10, or wherein the ratio (RN ) of Ln/Lx is in the range of between 1.2 and 12, or both; and at least one of: (Ni) demonstrating photo catalytic activity (PCA (vis)) which is greater than 2.5; and (iv) demonstrating specific photo catalytic activity (SPCA(vis)) in the range greater than 0.22.
(FR)
La présente invention a pour objet une composition de dioxyde de titane comprenant des nanoparticules, lesdites particules étant caractérisées : (i) en ce qu'elles sont composées essentiellement d'anatase; (ii) en ce qu'elles ont une taille moyenne, conformément à la XRD, de Lx, une taille moyenne, conformément à la SEM, de Ls, et une distribution de taille moyenne en suspension de Ln, le rapport (Rs) de Ls/Lx étant compris dans la gamme entre 1,2 et 10, ou le rapport (RN) de Ln/Lx étant compris dans la gamme entre 1,2 et 12, ou les deux; et (Ni) en ce qu'elles présentent une activité photocatalytique (PCA (vis)) qui est supérieure à 2,5; et/ou (iv) en ce qu'elles présentent une activité photocatalytique spécifique (SPCA(vis)) dans la gamme supérieure à 0,22.
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