http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109485091-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2004-64 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2006-80 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01P2004-04 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01G19-02 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B82Y40-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G19-02 |
| filingDate | 2018-12-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-02-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-02-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109485091-B |
| titleOfInvention | Preparation method of tin dioxide ultrafine powder with controllable particle size |
| abstract | The invention discloses a preparation method of tin dioxide ultrafine powder with controllable particle size, belonging to the technical field of powder material preparation. The tin powder is sent into high-temperature plasma flame flow to be rapidly melted and evaporated to form tin vapor, the tin vapor reacts with oxygen atoms or oxygen molecules in an oxidation treatment device, forms tin dioxide after nucleation and growth in a low-temperature region of plasma jet flow, and is cooled, settled and collected to obtain the tin dioxide ultrafine powder. The invention adopts a plasma spraying method, an oxidation treatment device is additionally arranged at the front end of a gun body, the opening degree of an oxidation treatment inner wall of a micro-loudspeaker structure and the opening degree of an oxidation treatment outer wall of the micro-loudspeaker structure are changed by moving the position of an annular oxygen pipeline in the oxidation treatment device, the concentration of tin vapor in the device is changed to change the reaction rate of the tin vapor and flue gas molecules or oxygen atoms and the condensation rate of tin dioxide, and the particle size of the tin dioxide ultrafine powder is regulated and controlled. The invention can solve the problems of complex process, low yield, uncontrollable particle size and the like in the production of the tin dioxide ultrafine powder. |
| priorityDate | 2018-12-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 23.