http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102976292-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a4ba8e7d65cdb91c3c4a3bd805f911c6 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B82Y30-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B21-064 |
| filingDate | 2012-12-20^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2014-12-24^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8e7454828de684b2e489cf10662cc2ab http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1d1513b8020d34c0ec174de525ba6991 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ab96ee116f7c52a90a11bb14017ec910 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_30a49a569ea2e832d68a5445e769ddf5 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cf042054464f6f3729f1421f89b310a0 |
| publicationDate | 2014-12-24^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-102976292-B |
| titleOfInvention | Method for preparing high-crystallinity spherical hexagonal boron nitride powder body |
| abstract | The invention discloses a method for preparing a high-crystallinity spherical hexagonal boron nitride powder body. The method comprises the following steps of: 1, dosing, wherein boric acid, borax and urea are used as raw materials; magnesium powder is used as a catalyst; and acrylamide, N,N-methylene bisacrylamide and ammonium persulfate are used as network agents; 2, preparing hexagonal boron nitride precursor gel; 3, preparing a precursor powder body; 4, preparing a mixed precursor powder body by adding the catalyst; and 5, preparing the high-crystallinity spherical hexagonal boron nitride powder body. By the method, reaction is not required to be generated under high temperature of 1,600 DEG C to 2,100 DEG C, and the raw materials are not required to be brought into an ammonia atmosphere through nitrogen or inert gas; the process is simple; the cost is low; and impurities are difficult to introduce. |
| priorityDate | 2012-12-20^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
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