http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-108863352-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2235-3227 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2235-3244 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2235-656 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2235-6567 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2235-95 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B2235-94 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B35-50 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B35-48 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B38-0645 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B35-622 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B38-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B35-48 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B35-50 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B35-622 |
| filingDate | 2018-06-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-02-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-02-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-108863352-B |
| titleOfInvention | Lanthanum-containing zirconium oxide hollow microsphere and preparation method thereof |
| abstract | The invention discloses lanthanum-containing zirconia hollow microspheres, which comprise lanthanum and zirconium in a molar ratio of (1-5) to 2, wherein the diameter of the lanthanum-containing zirconia hollow microspheres is 0.1-10 mu m. The invention also discloses a method for preparing the lanthanum-containing zirconia hollow microsphere, which comprises the following steps: uniformly mixing a lanthanum precursor, a zirconium precursor, urea and strong acid in ethanol, placing the obtained clear solution in a closed reaction kettle, carrying out solvothermal reaction for 6-18 h at 160-200 ℃, cooling, collecting white precipitate in the product, washing, drying, and calcining for 1-4 h at 800-1000 ℃. According to the invention, the lanthanum element is introduced into the zirconia hollow microspheres, so that the diffusion rate of zirconia at high temperature is effectively reduced, the hollow microspheres are still stable at the temperature of above 1300 ℃, the introduction process of the lanthanum element is simple, the cost of raw materials is low, and the prepared lanthanum-containing zirconia hollow microspheres have stable structures and good dispersibility. |
| priorityDate | 2018-06-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 57.