Title:
ジルコニウム、プラセオジム、ランタンまたはネオジムの酸化物を主体とした組成物、その調製方法および触媒系における使用
Document Type and Number:
Japanese Patent JP4791445
Kind Code:
B2
Abstract:
The composition is based on zirconium oxide and at least one additive selected from zirconium oxide and at least one additive chosen from praseodymium, lanthanum or neodymium oxides, has a specific surface of at least 29 m 2/g after calcination at 1000° C. during a period of 10 hours and is obtained by a method wherein a mixture of zirconium compounds and additive is precipitated with a base; the medium thus obtained, containing a precipitate, is heated and a compound chosen from anionic surfactants, non-ionic surfactants, polyethylene glycols, carboxylic acids and the salts thereof and surfactants such as the ethoxylates of caroboxymethyl fatty alcohols is added to the compound and the precipitate is calcinated; the composition can be used as a catalyst.
Inventors:
Olivier L'Arche
Philip Mwasonnier
Emmanuel roal
Philip Mwasonnier
Emmanuel roal
Application Number:
JP2007500263A
Publication Date:
October 12, 2011
Filing Date:
February 25, 2005
Export Citation:
Assignee:
RHONE-POULENC CHIMIE
International Classes:
C01G25/02; B01D53/94; B01J21/06; B01J21/08; B01J23/10; B01J23/63; B01J32/00; B01J37/00; B01J37/03; C01F17/00; C01G25/00; B01J35/10
Domestic Patent References:
| JP2001524918A | 2001-12-04 | |||
| JP2003119022A | 2003-04-23 | |||
| JPH10194742A | 1998-07-28 | |||
| JP2000319019A | 2000-11-21 |
Attorney, Agent or Firm:
Axis International Patent Business Corporation