http://rdf.ncbi.nlm.nih.gov/pubchem/patent/TW-200914379-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_33c922e05f6133b7d72dbb849d77487d |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2004-64 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2004-62 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2002-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2002-76 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2002-60 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2004-03 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2004-54 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01F17-247 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B82Y30-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K3-1409 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K3-1463 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01F17-235 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01F17-10 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B32-60 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K3-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01F17-235 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01F17-247 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09G1-02 |
| filingDate | 2006-11-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cada59de3614cabfb7448851e16544ee http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_30a989e796bcb6b87339688b60d64c99 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6ebbd82b7bcc31ec522588c9bd27676f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cf4b475193cd8c88f7cc297ea888af82 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_491ad46815173d237dc563186fc0be82 |
| publicationDate | 2009-04-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | TW-200914379-A |
| titleOfInvention | Method for preparing cerium carbonate powder and cerium oxide powder |
| abstract | Disclosed is a method of preparing cerium carbonate powder by mixing a cerium precursor solution with a carbonate precursor solution and subjecting the mixture solution to a precipitation reaction, wherein the concentration of cerium in the cerium precursor solution ranges from 1M to 10M, the molar concentration ratio of the cerium precursor to the carbonate precursor ranges from 1: 1 to 1: 7, and the cerium precursor solution contains at least one additive selected from the group consisting of carbonate compounds, acrylic compounds, and sulfate ion-containing compounds. Also, disclosed is cerium carbonate powder, which is prepared according to said method and has an orthorhombic crystal structure, a particle size of 0.05 to 1 μm, and an aspect ratio of 1 to 5. Moreover, disclosed are cerium oxide powder prepared from said cerium carbonate powder as a precursor, a preparation method thereof, and a CMP slurry containing said cerium oxide powder as an abrasive. According to the disclosed invention, cerium carbonate powder having a uniform particle size of 0.05 to 1 μm can be prepared through a liquid-phase process by controlling the concentration of the cerium precursor solution, the molar concentration ratio of the cerium precursor to the carbonate precursor solution, the kind of additives, and the like. Also, the cerium carbonate powder is enabled to have a uniform shape with an aspect ratio of 1 to 5, even though it has an orthorhombic crystal structure. |
| priorityDate | 2005-11-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 82.