Cerium-base ternary nano level composite RE oxide and its prepn process
Title：
Cerium-base ternary nano level composite RE oxide and its prepn process
Application Number：
 02130892
Application Date：
 2002/10/15
Announcement Date：
 2003/03/19
Pub. Date：
Publication Number：
 1403377
Announcement Number：
 1206027
Grant Date：
 2005-6-15
Granted Pub. Date：
 2005-6-15
ApplicationType：
 Invention
State/Country：
 11[China|beijing]
IPC：
 B01J 23/10, B01D 53/94, C01F 17/00
Applicant(s)：
 Tsinghua Univ.
Inventor(s)：
 Wen Mingfen, Wang Qiuping, Song Chongli
Key Words：
 Cerium-base, ternary nano level, composite RE oxide, prepn process
Abstract：
 The composite RE oxide of the present invention is the solid solution comprising CeO2 20-40 wt%, ZrO2 50-70 wt% and La2O3 1-10 wt%. The present invention is prepared with inorganic salt as material and through sol-gel process and codeposition process or through cladding process and codeposition process and the process are carried out at normal temperature and produces no Three-Waste. Low temperature and high temperature heat treatment shows that the composite Re oxide has specific surface area and high temperature stability obviously improved compared with available technology. The composite RE oxide may be used in various catalytic process, especially in purifying tail gas of automobile.
Claim：
Priority：
PCT：
LegalStatus：

Recommend this patent:
1 2 3 4 5
Average ( 0 votes):
                                                                          Recommended Patents>>

Relevancy information

Cerium-base quaternary nano level composite RE oxide and its prepn process


Other Patents of Same Inventor

Microwave synthesis process for nano-class TiSi molecular sieve
Cerium-base quaternary nano level composite RE oxide and its prepn process
Nano grade titanium silicon molecular sieve and its synthesis technology
Binary composite mesopore oxide material making cerium as base and its preparation
Nano cerium and zirconium based nano-oxide with transition elements added and its preparation
Chemical plating activating process and metal depositing process therewith
Method for preparing large pore capacity, high specific surface area alumina
Method for preparing catalyst to purify automobile tail gas



News & Events More>>

Last Update  
2008-4-17
  Selected patents owned by Tsinghua University filed in 2005 are loaded.
2008-3-31
  Selected patents owned by Tsinghua University filed in 2006 and 2007 are load.







Copyright 2008-2015 All Rights Reserved Patent License of China.      Designed by Easygo