http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104415744-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-10 |
| filingDate | 2013-09-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2016-08-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2016-08-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-104415744-B |
| titleOfInvention | The preparation method of polynary praseodymium based oxygen storage material Pr-Zr-Tb-Y-Sc |
| abstract | The invention discloses the preparation method of a kind of polynary praseodymium based oxygen storage material Pr Zr Tb Y Sc.Main processes is as follows: with the anhydrous chloride of praseodymium zirconium terbium yttrium scandium as raw material, first prepare metal cyclopentadienyl compound, sol-gal process and solvent extraction process is used to prepare Pr Zr Tb Y Sc composite oxides presoma again, presoma is placed in roasting in 600 DEG C of air atmospheres, obtain Pr Zr Tb Y Sc composite oxide oxygen storage material, preparation technology of the present invention is simple, and the powder constituents obtained is homogeneous, eliminates the step that previous methods needs to wash, filter, be dried.In this material, the atomic ratio of Pr:Zr:Tb:Y:Sc is 5:4:0.3 ~ 0.5:0.2 ~ 0.4:0.2 ~ 0.3, and after 1000 DEG C of burin-in process 4h, specific surface area still reaches 50.2m 2 / g, at a temperature of 200 DEG C, its oxygen storage capacity is more than 618 μm olO 2 / g, has excellent ageing resistance and Oxygen storage capacity.It addition, material also can significantly reduce triple-effect catalytic unit initiation temperature in tail gas catalyzed conversion, and reduce the consumption of noble metal. |
| priorityDate | 2013-09-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 49.