http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-105665748-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B22F9-24 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B22F9-24 |
| filingDate | 2016-04-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2018-01-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2018-01-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-105665748-B |
| titleOfInvention | A kind of preparation method of high pure and ultra-fine silver powder |
| abstract | The invention discloses a kind of preparation method of high pure and ultra-fine silver powder, comprise the following steps：A, silver nitrate crystal is purified；B, purification of chlorinated sodium crystal；C, silver nitride precipitation is prepared；D, silver nitride precipitation will be obtained in step c to be placed in the 4th container, then be continuously added NH into the 4th container 2 OHHCl hydrous ethanol solution is stirred continuously, until silver nitride precipitation all dissolves, reaction temperature is 20~25 DEG C, and mixing speed is 350~450r/min, there is the generation of suspension black solid on liquid level；E, filtering and under vacuum high pure and ultra-fine silver powder described in drying.The beneficial effects of the invention are as follows：Reaction prepares silver powder under the conditions of even phase, and granularity is small, particle is uniform；Dispersant need not be added, easily washing, silver powder purity is high；Ionic reaction is carried out in the solution, and contact area is big, and reaction speed is fast；React at ambient pressure, simple production process, cost is low；Contamination-free is discharged. |
| priorityDate | 2016-04-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 42.